Quiz about Pre Semester Exam

Question 1

Simplify the following expression:

Accepted Answer

D

Answer

A

Answer

B

Answer

C

Question 2

Perform the operation

Accepted Answer

A

Answer

B

Answer

C

Answer

D

Question 3

Perform the operation

Accepted Answer

B

Answer

A

Answer

C

Answer

D

Question 4

SIMPLIFY

Accepted Answer

B

Answer

A

Answer

C

Answer

D

Question 5

Simplify $$\frac{7n}{3n-18}+\frac{n+3}{3}$$

Accepted Answer

$$\frac{n^2+4n-18}{3\left(n-6\right)}$$

Answer

$$\frac{8n+3}{3n-15}$$

Answer

$$\frac{7\left(n+3\right)}{3\left(3n-18\right)}$$

Answer

$$\frac{7n+n+3}{3n-18+3}$$

Question 6

Simplify

Accepted Answer

1/(x-9)

Answer

(x-9)/(x+9)

Answer

(x+9)

Answer

1/(x+9)

Question 7

Simplify

Accepted Answer

1/(x-9)

Answer

(x-9)/(x+9)

Answer

(x+9)

Answer

1/(x+9)

Question 8

Simplify $$\frac{7n}{3n-18}+\frac{n+3}{3}$$

Accepted Answer

$$\frac{n^2+4n-18}{3\left(n-6\right)}$$

Answer

$$\frac{8n+3}{3n-15}$$

Answer

$$\frac{7\left(n+3\right)}{3\left(3n-18\right)}$$

Answer

$$\frac{7n+n+3}{3n-18+3}$$

Question 9

Simplify the expression

Accepted Answer

(4 - 2ab² + 3b³) / 4b²

Answer

(4a - 2a²b² + 3ab³) / 4ab²

Answer

(4 - 2ab² - 3b³) / 4b²

Answer

(4a - 2a²b² - 3ab³) / 4ab²

Question 10

Find the LCD: $$\frac{1}{3a}+\frac{1}{6a^2}$$

Accepted Answer

$$6a^2$$

Answer

12

Answer

18a

Answer

$$3a^2$$

Question 11

$$Simplify:\ \ \frac{x^8y^{12}}{x^4y^{15}}$$

Accepted Answer

$$\frac{x^4}{y^3}$$

Answer

$$\frac{x^{12}}{y^3}$$

Answer

$$x^{12}y^{27}$$

Answer

$$\frac{y^3}{x^4}$$

Question 12

8v - 4(v + 8) = 8

Accepted Answer

10

Answer

2

Answer

4

Answer

-4

Question 13

8v - 4(v + 8) = 8

Accepted Answer

10

Answer

2

Answer

4

Answer

-4

Question 14

What does "m" represent in y=mx+b?

Accepted Answer

slope

Answer

y-intercept

Answer

macaroni

Answer

nothing

Question 15

What is the x-intercept of the equation 3x - 2y = 6

Accepted Answer

(2, 0)

Answer

(0, 2)

Answer

(-3, 0)

Answer

(0, -3)

Question 16

Find the equation of this line

Accepted Answer

y = 2x

Answer

y = 0.5x

Answer

y = 2x + 6

Answer

y = 2x + 3

Question 17

Find the equation of this line.

Accepted Answer

y = -3x - 15

Answer

y = -3x + 5

Answer

y = -5x + 15

Answer

y = your mum

Question 18

If 2x+3y = 12 and 3x-2y=5 then

Accepted Answer

x = 3, y = 2

Answer

x = 2, y = 3

Answer

x = 2, y = -3

Answer

x = 3, y = -2

Question 19

If the system of equations kx - 5y = 2, 6x + 2y = 7 has no solution, then k =___

Accepted Answer

-15

Answer

-10

Answer

-5

Answer

-6

Question 20

A driving range charges $4 to rent a golf club plus $2.75 for every bucket of golf balls you hit. Write an equation that shows the total cost c of hitting b buckets of golf balls.

Accepted Answer

c = 2.75b + 4

Answer

c = 2.75b

Answer

c =  4b- 2.75

Answer

c = 2.75b - 4

Question 21

Belinda's car needed repairs. The mechanic charged him $140 for the parts and an additional $48 an hour for labor. Write an equation that models this situation.

Accepted Answer

y = 48x +140

Answer

y = 140x +48

Answer

y = -48x +140

Answer

y = 48x

Question 22

What could this represent? 7x + 2 = 30

Accepted Answer

Buying pet turtles for $7 each plus two cans of turtle food cost $30.

Answer

Seven bags of candy plus 2 extra snickers bars equals 30 dollars.

Answer

Two yoyos plus seven frisbees is thirty cents.

Answer

Buying seven calculators plus $2 per bundle of pencils is $30.

Question 23

Speedy Boat Rental charges a $15 deposit fee plus $2 for each hour of use to rent a paddle boat.  Write an equation for C, the total cost, to rent the boat for h hours.

Accepted Answer

C = 2h + 15

Answer

h = 2C + 15

Answer

C = 15h + 2

Answer

h = 15C + 2

Question 24

How many solutions does this equation have?

6x - 3 = 6x + 9

Accepted Answer

No Solution

Answer

One Solution

Answer

Many Solutions

Question 25

How many solutions does this equation have?

8y - 4 = 8y - 4

Accepted Answer

Many Solutions

Answer

One Solution

Answer

No Solution

Question 26

How many solutions does this equation have?

3z + 7 = 7 + 3z

Accepted Answer

Many Solutions

Answer

One Solution

Answer

No Solution

Question 27

Maximum, how many solutions can a quadratic equation have?

Accepted Answer

2

Answer

1

Answer

3

Answer

4

Question 28

What is the formula to find the roots of a quadratic equation $$ax^2+bx+c=0$$ ?

Accepted Answer

$$x=\frac{-b\pm\sqrt[]{b^2-4ac}}{2a}$$

Answer

$$\frac{b\pm\sqrt[]{b^2-4ac}}{2a}$$

Answer

$$x=\frac{-a\pm\sqrt[]{a^2-4bc}}{2b}$$

Answer

$$\frac{-b-\sqrt[]{b^2-4ac}}{2a}$$

Question 29

Choose the correct options among the given conditions in the quadratic equation $$ax^2+bx+c=0$$ .

Accepted Answer

When $$b^2=4ac$$ , there is unique solution.

Accepted Answer

When $$b^2-4ac>0$$ , the roots are rational number.

Accepted Answer

When $$b^2-4ac<0$$ , the roots are irrational number.

Answer

When $$b^2=4ac$$ , there is no solution.

Question 30

Choose the discriminant of the equation $$x^2-x-20=0$$ .

Accepted Answer

81

Answer

9

Answer

1

Answer

80

Question 31

Solve the equation by factoring.

Accepted Answer

x = {-5,-3}

Answer

x = {5,-3}

Answer

x = {-5,3}

Answer

x = {5,3}

Question 32

Solve the equation using the quadratic formula.

4x² +9x = 12x

Accepted Answer

x = {0, 3/4}

Answer

x = {0, -3/4}

Answer

x = {0, 4/3}

Answer

no solution

Question 33

Which graph is a parabola?

Accepted Answer

Option B is correct

Answer

A.

Answer

C.

Answer

D.

Question 34

Which equation would give the graph of a parabola?

Accepted Answer

y = x2 + 4

Answer

y = 2x - 3

Answer

y = x₂+ 1

Question 35

How can you tell whether a parabola is facing up or facing down by looking at the equation?

Accepted Answer

The value of "a" tells you the direction of the opening.

Answer

The vertex tells you the direction of the opening

Answer

All parabolas open upward

Answer

All parabolas open downward

Question 36

If the a value is positive in the equation of y = ax²+ c, which direction does the graph open?

Accepted Answer

up

Answer

down

Answer

left

Answer

right

Question 37

Which letter in a equations y = ax²+ c represents the y-intercept?

Accepted Answer

c

Answer

a

Answer

b

Question 38

What is the y-intercept of the parabola y = 5x² - 3

Accepted Answer

- 3

Answer

5

Answer

3

Answer

-5

Question 39

What is the y-intercept of the parabola?

Accepted Answer

0

Answer

-4

Answer

4

Answer

-3

Question 40

The graph of y = x² + 1 could be?

Accepted Answer

Option C is correct

Answer

A.

Answer

B.

Answer

D.

Question 41

What is the equation of this graph?

Accepted Answer

y = x2

Answer

y = x2 + 1

Answer

y = - x² + 1

Answer

y = - x2

Question 42

What is the equation of the following graph?

Accepted Answer

y = x2 - 2

Answer

y = 2x2

Answer

y = x2 + 2

Answer

y = - 2x2

Question 43

Which of the following graphs could be y = 5x² + 1?

Accepted Answer

Option A is correct

Answer

B.

Answer

C.

Answer

D.

Question 44

What is the simplifies form of (11 - 7i) - (-3 + 12i)

Accepted Answer

14 -19i

Answer

8 - 19i

Answer

8 + 5i

Answer

13- 19i

Question 45

What is the simplified form of (-6i)(3i)

Accepted Answer

18

Answer

-18

Answer

-18i

Answer

-18i2

Question 46

A complex number can be expressed as a + bi. What does a represent?

Accepted Answer

the real part of the complex number

Answer

the imaginary part of the complex number

Answer

depends on the sign of the number

Answer

the square root of the complex number

Question 47

Question 47.

Accepted Answer

-5i

Answer

i

Answer

5i

Answer

-i

Question 48

Simplify the number by using the imaginary number i.

$$\sqrt{-40}$$

Accepted Answer

$$2i\sqrt{10}$$

Answer

$$-2i\sqrt{10}$$

Answer

$$8i\sqrt{5}$$

Answer

$$-8i\sqrt{5}$$

Question 49

Find

$$i^{1222}$$

Accepted Answer

-1

Answer

1

Answer

i

Answer

-i

Question 50

Question 50.

Accepted Answer

B

Answer

A

Answer

C

Answer

D

Question 51

Question 51.

Accepted Answer

C

Answer

A

Answer

B

Answer

D

Question 52

Simplify $$\frac{14}{7-6i}$$

Accepted Answer

$$\frac{98+84i}{85}$$

Answer

$$\frac{35+21i}{34}$$

Answer

$$\frac{7+7i}{6}$$

Answer

$$\frac{112+96i}{85}$$

Pre Semester Exam

65 questions

Simplify the following expression:

Perform the operation

Perform the operation

SIMPLIFY

Simplify

Simplify

Find the restriction(s) for the above expression

Choose the correct simplification of the original expression of $\frac{12a^2+54a}{54a}$

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Pre Semester Exam

65 questions

Simplify the following expression:

Perform the operation

Perform the operation

SIMPLIFY

Simplify

Simplify

Find the restriction(s) for the above expression

Choose the correct simplification of the original expression of 12a2+54a54a\frac{12a^2+54a}{54a}54a12a2+54a​

Create a free account and access millions of resources

Similar Resources on Wayground

Popular Resources on Wayground

Discover more resources for Mathematics

Choose the correct simplification of the original expression of $\frac{12a^2+54a}{54a}$