WorksheetsMiddle School Math Praxis
Total questions: 188
Worksheet time: 15hrs 27mins
x2 = 4
2
-2
2,-2
4,1
y2 = -49
-7,7
-7,-7
+-7i
+-7(1+6)
The area of a circle is 54π, therefore, the radius of the circle would be which of the following?
rational
irrational
interger
complex number
A $50 shirt had a 10% discount on Monday and then followed up by a 15% discount on Tuesday. Which of the following equations will solve for the price of the shirt after discounts?
50-(.10)(.15)
50(10)(15)
50-(85)(15)-(10)(15)
50(.85)(.90)
There are 9 players in a baseball lineup. How many different lineups are possible? Which of the following equations solve for this answer?
9(27)(3)
9 X 8 X 7 X 6 X 5 X 4 X 3 x 2 x 1
9!
90 X 80 X 70
Do sides 12, 24, and 36 make a right triangle?
yes, bc 12 +24 equal 36
no, bc 122+242 does not equal 362
no, bc 12 + 24 is not greater than 36
yes, bc 122 + 242 is not less than 36
Do sides 3,4,5 make a triangle?
Yes, bc 7 > 5
No, bc 7 > 5
No, bc 32 + 42 =25
The perimeter of a rectangle is 52 ft. If the length is 10 less than 2 times the width, what is the width?
14
12
24
36
The perimeter of a rectangle is 52 ft. If the length is 10 less than 2 times the width, what is the width? What is an equation that will solve this problem?
52=2(2w-10) +2w
52= 10(2)+(2(2) +2w
2w+ 10-w +2W=52
What is the area of a square with a diagonal of 8 times square root of 2?
32
8
64
What kind of triangles can be made out of a square?
2 30,60,90
2 45,45 90
2 obtuse
2 acute
A 45, 45, 90 triangle's hypotenuse is 8 times the square root of 2. What are the lengths of the legs?
64
8
4
128
What is the length of a square's diagonal if the the side lengths are 10?
40
2(10)2
10 times square root of 2
100
X2 _ 9=
(x-9)(x-9)
(x+3)(x+3)
(x+3)(x-3)
What is the probability of a coin landing on tails three times in a row?
1/2
1/4
1/6
1/8
Sum of Exterior degrees of a polygon equal
180
90
270
360
The formula for finding degrees of polygons is
180(S-2)
180(S)
90(s)
360(s)-2
How many degrees are in a pentagon?
360
720
540
90
How many sides does a Hexagon have?
6
7
5
8
A concave shape has at least one reflex angle over 180.
True
False
Convex shapes have no angles less than 180
true
false, they are all under 180
false, one is over 180
false one is under 180
How many 4-color codes can be made if the colors cannot repeat out of these possible colors? A,B,C,D,E,F. And select the reason to get answer.
360
180
6 factorial but stoping after multiplying by 3 since four codes
6 factorial bc 6 letter combinations
A club of 9 people want to choose a board of 3 people as officers: President, VP, and secretary. How many ways are there to choose the board member from the 9 people?
360
520
504
How many unique ways are there to arrange letters in the word APE?
12 bc of 3 factorial
6 bc 3 factorial
8 bc of 8 factorial
24 bc of 8 factorial
You got a free ticket for a cruise. You can bring two friends. You have 5 that want to go. How many different groups of friends can you take? Which equation solves this problem and why?
5!/2!(5-2) bc of this questions asks how many groups
5! bc 5 want to go
5! but stop on 3 bc 2 can only go.
How many different ways to arrange word Prior?
12 bc 5 factorial minus 2 factorial since two r's
5 since 5 factorial
60 bc you have two divide by two after getting factorial of 5 since 2 r's
How many numbers are divisible by 5 and 8 between numbers 1 and 100?
32
30
28
20
Midpoint formula?
x1 + y1/ 2 +1
x1 plus x2 / 2. , y1+y2/2
(x2-x1)2 + (y2-y1)2
(x2-x1)2 + (y2-y1)2 all under square root
Distance formula?
x1 + y1/ 2 +1
x1 plus x2 / 2. , y1+y2/2
(x2-x1)2 + (y2-y1)2
(x2-x1)2 + (y2-y1)2 all under square root
circumference of a circle formula
πD
π(D)2
π(r)
π(r )(2)
To find angle degrees of a pentagon can divide by
5
90
180
area formula for triangle is
b (h)
(b)(H)/2
b(SH)/2
area of a trapezoid is 1/2H(b1 +b2)
True
False
2(3.14)(H)(R) +2(3.14)r2 is formula for
SA of Cone
SA of Cylinder
V of Cone
V of cylinder
(3.14)(L)(R) +(3.14)r2 is formula for
SA of Cone
SA of Cylinder
V of Cone
V of cylinder
(3.14)Hr2
SA of Cone
SA of Cylinder
V of Cone
V of cylinder
1/3(3.14)Hr2
SA of Cone
SA of Cylinder
V of Cone
V of cylinder
to get surface area of a sphere you can
get area of one circle and multiply by four
get area of one circle and multiply by six
get 4/3rd of 3.14 times r cubed
to get volume of a sphere you can
get area of one circle and multiply by four
get area of one circle and multiply by six
get 4/3rd of 3.14 times r cubed
SA of rectangular prism is
2lw+2wH+2hl
1/3 (lwh)
volume of rectangular prism is
(L)(W)H
1/3lwh
SA of cube is
lwh
6s2
4s2
The vertices of triangle ABC are at A(-3,-4) and B(-1,2) and C (5,-6). What is the midpoint of BC?
2
-2
4
-4
d=rt. The change in d and change in r when t is constant
direct
inverse
d=rt. The change in d and change in t when r is constant
direct
inverse
d=rt. The change in r and change in t when d is constant
direct
inverse
In f(x) = -2x +8, the intervals [-2,6] represent the domain of F, which of the following represent the range of F?
-4,12
4,12
-12,4
There are 23 players. The number of boy players is 7 less than twice the number of girls. How many boys are there?
13
15
8
10
A bank account started with 10 dollars. It doubles every hour. Let t = hours. What is an equation?
(10-t)3
(10-t)23
10(2)t
Jamar has driven 98 miles which is 35% of total. How many more miles does he have to drive?
280
182
292
184
Andre made 84 of his first 100 free throws. He then missed his next two. How many consecutive free throws is needed to raise his percent of free throws to 88%?
6
32
48
27
f(x)=(x+1) (x-5) fors all real numbers x. What is the least possible value of x?
9
-9
1
-1
f(x)=(x+1) (x-5) fors all real numbers x. What is the least possible value of x? How can this problem be solved?
Foil, use quadratic formula , plug x back into equation
Foil and then use vertex formula, plug x back into equation
Foil, take both numbers combined, plug x back into equation
Foil, factor remaining numbers, plug x back into equation
Andre made 84 of his first 100 free throws. He then missed his next two. How many consecutive free throws is needed to raise his percent of free throws to 88%?
6
32
48
27
Andre made 84 of his first 100 free throws. He then missed his next two. How many consecutive free throws is needed to raise his percent of free throws to 88%? How can this problem be solved?
100+2 making 18 missed FTs. Find Fraction with numerator(missed shots) being 18 above denominator(made shots) that equals 88 percent
100+2 making 18 missed FTs. Find Fraction with numerator(made shots) being 18 below denominator(missed Shots) that equals 88 percent
84+2 making 18 missed FTs. Find Fraction with numerator(made shots) being 18 above denominator(missed shotsr that equals 88 percent
84+2 making 16 missed FTs. Find Fraction with numerator(made shots) being 16 below denominator that equals100 percent
AX + Y = 5 and AX + BY = 11. The solution is (-1,2) where A and B are constants. What is the value of B?
2
3
4
5
.86 Billion converted to million
.086000
860,000,000
1.860
86
Car rental company A charges a one time fee of $85 plu $0.60 for every mile. Car Rental B charges $61 plus $0.90 per mile. How many miles will need to be driven for both to be the same?
80
82
84
86
Car rental company A charges a one time fee of $85 plu $0.60 for every mile. Car Rental B charges $61 plus $0.90 per mile. How many miles will need to be driven for both to be the same? What is an equation for solving this?
85(.60X) -61(.90x)=x
85(.60X)=61(.90x)
85+.60X=61+.90x
Adeline, Alexis, Jazmin and Maddix are going to the movies. Adeline and Alexis have to sit by each other. How many different combination can be arranged in their seating order?
12
24
18
28
Factor 9x2 − 1
(9x+1)((x+1)
(9x+1)(9X-1)
(3x + 1)(3x − 1)
(3x+1)(3x+1)
Factor 2x4 r − 72y4 r
2r(x +2-36y+2r)
2r(x2 + 6y2 )(x2 − 6y2 )
2r(x4) - 36y4
49x2 − 25y2
(7x-5x)(7x+5x)
(7x-5y)(7x+5y)
(7x+5y)(7x+5y)
The population of Country A is 0.36 billion persons, and the population of Country B is 12 million persons. The population of Country A is how many times that of Country B ?
0.03
0.3
300
30
A rectangular lawn is 40 feet wide and 65 feet long. If a bag of fertilizer covers 10,400 square feet, what is the maximum number of times the lawn can be completely fertilized using a single bag of fertilizer?
2
3
4
5
Mary has $88 in a jar. If she adds $6 each week to the money already in the jar without withdrawing any money, in how many weeks will she have a total of $142 in the jar?
7
8
9
10
In a collection of writing utensils consisting of pens and pencils, 64% of the writing utensils are pens. What is the ratio of pens to pencils in the collection?
16/9
21/5
12/5
9/2
Which of the following represents the x-intercept and the y-intercept of the graph of the equation 3x−4y=12
3x−4y=12 in the xy-plane?
(4,0) and (0,−3)
(4,0) and (0,3)
(-4,0) and (0,−3)
(-4,0) and (0,−3)
When the linear equation 2x−5y=−20 is graphed in the xy-plane, what is the slope of the line?
Give your answer as a fraction.
1/3
2/5
2/7
1/4
For inventory purposes, a manufacturing company assigns a 3-character code to each different item produced. The first character of the code must be a letter from the 26-letter English alphabet. The second and third characters must each be a digit from 0 to 9, but the digit cannot be repeated. How many different 3-character codes can be assigned?
720
2600
2340
15000
1/2n(n−3). The expression shown gives the number of diagonals in a polygon with n sides, where n is an integer. Which of the following expressions is equivalent to the expression shown?
n2/2 −3n/2
n2/2 +3
n2/2 -3
Cameron wants to create a display that shows how much a gallon of regular unleaded gasoline at a certain gas station costs at 8 A.M. each day over a two-week period. Which of the following is the most appropriate type of graph for him to use to display the data?
bar graph
line graph
pictograph
circle
In the xy-coordinate plane, quadrilateral PQRS is a rhombus. The endpoints of diagonal PR have coordinates (2,3) and(10,8). What is the slope of diagonal QS ?
-8/5
8/5
7/6
-7/6
A line in the xy-plane passes through the points (−2,−7) and (3,3). When the equation of the line is written in the form y=mx+b, what are the values of m and b ?
2,3
2,-3
-1,2
1,2
The houses along one side of a certain street are numbered with consecutive even integers, and the houses on the other side of the street are numbered with consecutive odd integers. The first house on the street is numbered 8, and the last house on the street is numbered 34. How many houses are on the even-numbered side of the street?
13
14
15
16
In the xy-plane, the slope of a line is 1/3, and the y-intercept of the line is 4. Which of the following is an equation of the line?
3y−x=4
3y−x=12
3y−3x=3
A large right circular cylinder has a radius and height that are each twice the size of the radius and height of a small right circular cylinder. The volume of the large cylinder is how many times the volume of the small cylinder?
2
4
6
8
From 8 A.M. to 12 noon on a cold day, the temperature rose at a constant rate from −18
degrees Fahrenheit to 34 degrees Fahrenheit. What was the temperature, in degrees Fahrenheit, at 10 A.M. that day?
2
4
6
8
A light display for a festival consists of a string of 1,000 lightbulbs in the colors red, yellow, green, and blue repeated consecutively in that order for the entire display. The bulb of the 543rd light needs to be replaced. If the 1st bulb is red, what is the color of the bulb that needs to be replaced?
green
blue
red
yellow
The average (arithmetic mean) of 40, 80, and m is 50. The average of 40, 80, m, and v is 60. What is the value of v ?
90
80
70
60
Water is leaking from a pipe at a constant rate of 1/2 cup every 10 minutes. At this rate, how many gallons of water will leak from the pipe in 1 week? (Note: 16cups=1gallon)
46.5
63
31.5
126
A car traveled a certain distance in t hours. The average speed of the car was 50 miles per hour for the first hour and 40 miles per hour for each hour after the first. Which of the following expressions gives the distance the car traveled, in miles, in terms of t ?
50+40(t−1)
50t+40t
50t+40(t−1)
A rectangle has a length of x inches and a width of y inches, where x and y are integers. If x/y=5/8, which of the following could be the perimeter, in inches, of the rectangle?
52
65
78
80
A rectangle has a length of x inches and a width of y inches, where x and y are integers. If x/y=5/8, which of the following could be the perimeter, in inches, of the rectangle? In this problem what multiples does the answer need to have in common with?
2 bc of with equation 2(5+8)=26
5 bc of with equation 2(5+8)=26
26 bc of with equation 2(5+8)=26
8 bc of with equation 2(5+8)=26
An English teacher surveyed 48 tenth-grade students and found that 18 had read Hamlet, 20 had read Macbeth, and 21 had read neither play. How many of the students surveyed had read both plays?
11
18
21
29
If x2−3x−54=(x+k)(x+m) for all values of x, where k and m are constants, what is the value of |k−m|?
15
9
3
11
Which could be an equation of y=f(x)
y=|x|-2
y=|x|+2
y=|x-2|
A group of 41 students were asked to record the number of books each of them read while on a break from school. The histogram above shows the number of students that read from 0 to 6 books over the break. Based on the histogram, what was the median number of books read by the students?
1
2
3
4
In the xy-plane above, triangle ABC is rotated 90° counterclockwise about the origin and then reflected across the y-axis to form triangle A′B′C′ (not shown), where B′ corresponds to the transformation of point B. What are the coordinates of B′ ?
(5,1)
(-5,1)
(-5,-1)
(5,-1)
The value of a is 10% less than the value of b, and the value of c is 20% greater than the value of d. The value of ac is what percent greater than the value of bd ?
2
5
8
10
The value of a is 10% less than the value of b. What is another way to express this?
the value of a is 90% of the value of b, so a=0.9b
the value of b is 90% of the value of b, so b=0.9a
The value of c is 20% greater than the value of d. What is another way to express this?
c=1.20d
c=120d
The value of a is 10% less than the value of b, and the value of c is 20% greater than the value of d. The value of ac is what percent greater than the value of bd ? What is an equation to solve this?
(.10)(.20)
(.90)(120)
(0.9b)(1.2d)
A vase has 3 red roses, 4 pink roses, and 5 white roses. Another vase has 2 red roses, 2 pink roses, and 2 white roses. If one rose is to be selected at random from each vase, what is the probability that both roses will be the same color?
1/3
1/4
1/5
1/7
A vase has 3 red roses, 4 pink roses, and 5 white roses. Another vase has 2 red roses, 2 pink roses, and 2 white roses. If one rose is to be selected at random from each vase, what is the probability that both roses will be the same color? How is this problem solved?
Finding the probability of getting each rose and multiplying
Finding the probability of getting each rose and adding
Finding the probability of getting each rose and adding, where each has same denominator
Finding the probability of getting each rose and multiplying, where each has same denominator
3a=2b=c and a>0
Order from least to greatest.
ab2, a2c, b2c, ac2
a2c, ab2, b2c, ac2
ab2, b2c, ac2, a2c
Ashley is going to a movie at a theater with her friends Brianna, Carla, and Denise. The four friends will sit in consecutive seats in the same row, and Ashley and Brianna will sit next to each other. How many different seating arrangements of the four friends are possible? What is an equation for this problem?
2 x 3 factorial bc treat A and B as one but multiply by 2 since they have two orders in which they can sit
2 x 3 factorial bc treat A and B as one but divide by 2 since they have two orders in which they can sit
2 x 4 factorial bc treat A and B as one but multiply by 2 since they have two orders in which they can sit
2 x 4 factorial bc treat A and B as one but divide by 2 since they have two orders in which they can sit
1000 is invested at 5 % annual simple interest for a period of one year. What is the amount of simple interest earned?
50
1000.05
1000
500
1000 is invested at 5 % annual simple interest for a period of one year. What is the amount of simple interest earned? What is equation for solving this
(1000) (.05) (1)
(1000) (.05) (12)
(1000) (5) (12)
(1000) (5) (1)
1000 is invested at 5 % annual simple interest for a period of one year. What is the total amount of account after 1 year?
1000
50
1050
1005
1000 is invested at 5 % annual simple interest for a period of one year. With simple interest, what amount keeps being added to account year after year?
1000
50
1050
1005
The difference between simple interest and compound interest is that you make money off of the interest you made the year before in compound interest whereas in simple you only make interest off of the original amount and that interest made never goes up.
True
False
Simple interest formula is
P=IRT if move decimal of rate two spots to left when multiplying
I=PRT/100
I=PRT if move decimal of rate two spots to left when multiplying
P=IRT/100 if move decimal of rate two spots to left when multiplying
10,500 is invested for 9 years in account paying annual simple interest. If the total amount of interest earned was $1890, how much was the interest rate? And whats equation to solve
1890=(10500)(9)R
2%
.02%
10500=1890(9)R
Factor 6v2 + 66v + 60
6(v2+11v+10)
6(v+10)(v+1)
Factor 2x2+5x-12
2(x+4)-3(x+4)
(2x2+8x) (-3x -12)
(2x-3)(x+4)
2x(2x-3)(x+4)
If parabola opens up or down it is y2
True
False. Its right or left if y2
in a parabola, if y2 is negative it opens to left
True
False it opens to right
Name two that are not congruent.
SAS
SSS
AAA
SSA
42/22=
22
2
4
42
(-1/8)-2= Choose 2
64
-64
1/64
(-8)2
To multiply more than one percentage, turn all into decimals, multiply and then move decimal tow spots to right to turn back into percentage
True
False
40% times 45%
.18
18
Both could be answers depending whether want in to a percent or decimal
To rotate a triangle counterclockwise around origin 90 degrees, the vertices change from (x,y) to
(-y,x)
(y,-x)
(-y,-x)
To rotate a triangle counterclockwise around origin 180 degrees, the vertices change from (x,y) to
(-x,-y) which is same as counter clockwise
(y,-x) which is same as counter clockwise
(-y,-x) which is same as counter clockwise
To rotate a triangle counterclockwise around origin 270 degrees, the vertices change from (x,y) to
(-y,x) which is same as clockwise going 90 degrees
(y,-x) which is same as clockwise going 90 degrees
(-y,-x) which is same as clockwise going 90 degrees
From (X,Y), When rotating clockwise and conterclockwise, x and y trade places on 90 and 270 degree rotation but stay in same spot on 180(changing both signs on 180(-x-y).In counter 90 y becomes negative (-y,x). and 90 clockwise x becomes negatve (y,-x).
T
F
20/.5 is 10
T
F
Which way would y=|x- - 3| shift a graph?
right 3
left 3
up 3
down 3
y= |x+3| + 2 shifts graph
up 2
left 3
right 3
down 2
Select all answers equations for problem equaling 4a2
6a-2a
2a + 2a
2a(2a)
6a3- 2a
When using best measure of central tendacy, if all the data is together, use mean unless has one outlier. Then use
median
range
mode
outlier
Solve using substitution or elimination y=4x+2 and y=4x-3
no solution bc lines are parallel
2,-3
2,3
3,2
How many real zeroes exist for the function f(x)=-(x-3)2+2
3 bc crosses y axis at one spot and x axis at two
2 bc vertex is at 3,2 opening down coming across x axis at two spots
1 bc vertex is at - 3,2 opening down coming across x axis at one spots
0 bc vertex is at 3,2 opening up
a(x-h)2 + k
(h,k) vertex
(-x,h) vertex
(x,k) vertex
The general form of a quadratic equation is
y = ax2 + bx + c
A2+B+C
x2+b+c
The factored form of a quadratic equation is
y = ax2 + bx + c
A2+B+C
y = a(x + b)(x + c)
f (x) = −3(x − 2) 2 − 4. Vertex is
(2,-4)
(-2-4)
f (x) = −3(x +2) 2 − 4. Vertex is
(2,-4)
(-2-4)
A trapezoid has an area that measures 288in2. The height is 18 in and the lower base measure 28 in. What is the measure of the upper base? Choose equation also
288=1/2(18)(b1 +28)
2
4
8
Solve using the substitution method. 2x+4y=10. y = 2x-5
-3,-1
-1,3
1,3
3, 1
A great circle of sphere lies on its surface and contains its center. What is the circumference of a great circle of a sphere that has a surface area that measures 1256 cm2. What equation to help solve?
1256=4(3.14)(r2) to find radius
62.8
31.4
100
314
SA area of sphere involves
taking 4/3
multiplying by 4
Two 6 sided dices are thrown. What is the probability equation that the fist die will land on a prime and the second will land on a number greater than 4?
1/2(1/3)
1/2(1/6)
1/3(1/6)
What is the length of the arc on a circle with central angle measure of 45 and radius of 8?
2pie
4pie
64pie
12pie
What is the length of the arc on a circle with central angle(M) measure of 45 and radius of 8? What formula can be used to solve?
arc length=m/360(2)3.14)(r) or m/360D(pie)
arc length=m/360(2)3.14)(r)2
bc solving for arc which is part of circumference, using part of circumference equation
bc solving for arc which is part of area, using part of area equation
The area of sector on a circle is 54π and the central angle measure of the sector is 135 degrees. What is the circumference of the entire circle?
24π
12π
21π
Factor x4 _ 81
(x+3)(x-3)(x2+9)
(x+3)(x+3)(x+3)(x-3)
The height of an object that is thrown is given by the equation z=-16t2+144t, where z is the distance in feet and t is the time in seconds w. After how many seconds will this object reach its max height?
4.5
7.5
3
9
The height of an object that is thrown is given by the equation z=-16t2+144t, where z is the distance in feet and t is the time in seconds w. After how many seconds will this object reach its max height? What helps solve for this equation?
vertex formula
quadratic formula
standard formula
The supplement of an angle is four times the measure of its compliment. What is the measure of the angle in degrees?
60
80
100
120
The supplement of an angle is four times the measure of its compliment. What is the measure of the angle in degrees? What is an equation for solving this?
180-x=4(90-x)
4(180-x)=(90-x)
Find the surface area of a cone with a radius of 8 and height of 15.
320π
180π
200π
270π
Find the surface area of a cone with a radius of 8 and height of 15. What are two ways you can mess up on this problem
using height instead of solving for slant height first
using cone formula
using cylinder formula
Simplify using scientific notation. (81.9 X 109)(3.69 X10-4) divided by (27.3 X 103)
11.07 x 102
1.107 x 103
1.107 x 10
To get prime factorization can start by dividing by 2 and then keep moving up. 3,4,5, etc until all numbers are prime
T
F
A rectangle has an area of x2-25 square meters and a length of x+5. What is the width?
x-5
x+5
5
-5
36-x2=
(x+6)(x-6)
(6+x) (6-x)
A rectangle has an area of 121-x^2 and length of 11-x. The Width is
11+x
11-x
11x
-11x
A temperature went from 13 to -2. Which of the following represent the number of degrees change in temperature?
|13-2|
|13| - |2|
|13| + |-2|
|13| - |-2|
Which of the following equations is equal to (x2+4)-1/2
-x2+4/ 2
1/x2
1/x2+4 under square root
A trip of 204 miles requires 8.5 gallons of gas . At this rate, how many gallons would be required of a 228 mile trip?
9
9.5
10
10.5
Can you add 4x +12x
Yes because have same exponent
No because don't have same base
an/bn =
(a/b)n
ab
nothing is equivalent bc different bases
4x +12x=
4x(4)
4x(1+3x)
4x(5x)
Which property of complex numbers is shown here? (2-3i) + (5+6i) + (1-2i) =(7 +3i) +(1-2i) =(2-3i) + (6 +4i) =8 +i
distributive
associative
commutative
The whole number y is exactly 3 times the whole number of x. The whole number z is the sum of x and y. Which of the following cannot be a value of Z?
314
416
524
1032
The whole number y is exactly 3 times the whole number of x. The whole number z is the sum of x and y. Which of the following cannot be a value of Z? In this problem, what is equation and how to solve.
3x=y so z = x +y can be turned into z = x + 3x which gives an answer of 4. So means answer has to be multiple of 4
just an explanation
f(x) x2−6x−16. Where graph cross x-axis?
8 and -2
2 and 8
-2 and -8
-2 and 2
-3x(x-2)2 is equivalent to
-3x(x+2)(x-2)
-3x3 +12x2-12x
-3x2+ 6
-3x2 - 6
A car is accelerated. Which accurately shows the appearance of the position time graph?
A curve with an increasing slope
A line with a positive slope
A car is accelerated. A curve with an increasing slope shows the accurate graph. Why?
A curve with an increasing slope shows that the car is changing speed bc of acceleration
A curve with an increasing slope shows that the car is staying at a constant rate
What is the interquartile range of the first 10 even numbers?
10
12
14
16
Jack is moving into a new apartment. His old rent was 800. His new rent will be 1100. What is his percent increase in monthly rent?
27%
37.5%
31 %
25.5%
A car is bought is for 24,210 The price of car has been marked down 10%. What is an equation to solve for finding the original price?
24,210=(.90)x
24,210=(.10)x
24,210=(.90) -x
24,210=(.10) -x
A car is bought is for 24,210 The price of car has been marked down 10%. What is an equation to solve for finding the original price?
26,900
26,300
27,300
25,900
Which of the following represent an inverse relationship?
y=3x
y=1/3x
y=3/x
y=3x2
y=k/x is
direct
inverse
both
none
Given the equation for a thrown ball h=15+22t-5t2, how long will it take to hit ground?
2
3
4
5
The graph of a parent function y=x2 is shifted 5 units to left and 4 units down. Which represents the transformed figure?
y=(x+5)2 -4
y=(x-5)2 -4
y=(x+5)2 +4
y=(x-5)2 +4
The average of 5 distinct scores has the same value as the median of the 5 scores. The sum of the five scores is 420. What is the sum of 4 scores that are not the median?
315
320
336
350
The length of a rectangle is 5 inches longer than the width. The perimeter of a rectangle is 40 inches. What is the width of the triangle?
8
15
7.5
15.5
h(r)=(r+1)(r+8). What are the zeroes of the function and vertex of parabola?
-8 and -1
1 and 8
(4.5, 12.25)
(-4.5, -12.25)
h(r)=. -(x-2)(x-6). What are the zeroes of the function and vertex of parabola?
2 and 6
-2 and -6
(4,4)
(-4,4)
h(r)= (t-5)2-9 What are the zeroes of the function and vertex of parabola?
2 and 8
-2 and -8
5,-9
5,9
h(x)=-2x2+4x+16. The ball's height ( in meters above ground), x seconds after Bud threw it, is modeled by the equation. How many seconds after being thrown will the ball hit the ground?
1
2
3
4
Reggie is a deep water free diver. His altitude (in meters relative to sea level), x in seconds after diving, is modeled by: d(x)=1/2x2-10x. What is the lowest altitude he reached?
-50
-30
10
-200
Jazmin throws a stone off a bridge into river below. The stone's height( in meters above the water), x in seconds after she threw it, is modeled by h(x) = -5x2+10x +15. What is the height of the stone at the time it is thrown?
y intercept
x intercept
vetex
zeroes
The number of mosquitoes( in millions of mosquitoes) as a function of rainfall( in centimeters) is modeled by. m(x)=-x2+14x. How many centimeters of rain will produce the max number of mosquitoes?
Vertex
roots
x axis
zeroes
The number of mosquitoes( in millions of mosquitoes) as a function of rainfall( in centimeters) is modeled by. m(x)=-x2+14x. How many centimeters of rain will produce the max number of mosquitoes?
7
14
0
2
The number of mosquitoes( in millions of mosquitoes) as a function of rainfall( in centimeters) is modeled by. m(x)=-x2+14x. How many centimeters of rain will produce the max number of mosquitoes? How to set up problem to solve?
not sure why couldn't be y of vertex
guess number of mosquitoes is y part at max
yea
set -x2+14x=0. x2-14x=0 Then factor out x x(x-14) which equals x=0 and x = 14. x of Vertex halfway bw 0 and 14. N
The circuits power is modeled by p(x)= -12x2+120x. What is the max power generated by by the circuit?
vertex's x
vertex's y
root
The circuits power is modeled by p(x)= -12x2+120x. What is the max power generated by by the circuit?
5
300
25
What are the zeroes? p(x)= -12x2+120x.
0 and 10
10 and 20
25 and 10
How to get roots on d(x)= 1/2x2-10x
divide 1/2 by 1/2 and -10 by 1/2 leaving x2-20x=0 to factor out which makes x(x-20)
mutilply 1/2 by -10 leaving x2-20x=0 to factor out, which makes x(x-20)
divide 1/2 by 1/2 and -10 by 1/2 leaving x2-20x=0 to factor out which makes x(x+20)
What are the roots of x(x+20)
x=0 and x=-20
x=0 and x=20
20 and -20
When a triangle is rotated counter clockwise around its origin, the move was
positive
negative
cool
not cool
If we want to describe a clockwise rotation, we use positive angle measures.
True
False, we use negative or counterclockwise for positive
