Quiz about untitled

Question 1

Simplify
(-6 - 2i)²

Accepted Answer

32+24i

Answer

32

Answer

36-4i

Answer

36+24i

Question 2

(3 + 8i)(-2 - i)

Accepted Answer

2-19i

Answer

23-i

Answer

34+5i

Answer

23-i

Question 3

Simplify

Accepted Answer

(1+50i)/61

Answer

(-10+6i)/17

Answer

(-23+36i)/25

Answer

(-21+33i)/34

Question 4

Question 4.

Accepted Answer

-5

Answer

5i

Answer

-5i

Answer

5+i

Question 5

i66

Accepted Answer

-1

Answer

1

Answer

i

Answer

-i

Question 6

Simplify: (8+3i)(4+4i)

Accepted Answer

20 + 44i

Answer

44 + 44i

Answer

20 - 44i

Answer

32 - 12i

Question 7

If the rocket was at a height of 5 feet at 1 seconds, at what other time was the rocket at a height of 5 feet?

Accepted Answer

5 sconds

Answer

It was never at 5 feet again.

Answer

6 seconds

Answer

3 seconds

Question 8

Use the quadratic formula to find the solutions for
y = -x² - 5x + 12

Accepted Answer

-6.77 and 1.77

Answer

-4.9 and -0.1

Answer

-8.54 and 8.54

Answer

-0.45 and 3.55

Question 9

Solve Using the Quadratic Formula
x² + 4x - 40 = -8

Accepted Answer

-8 & 4

Answer

-10 & -4

Answer

-4 & 10

Answer

8 & -4

Question 10

A function has a discriminant of -3.
______________
How many x-intercepts does it have?

Accepted Answer

0

Answer

1

Answer

2

Answer

3

Question 11

Use the quadratic formula to find the solutions for
y = 2x² - 9x + 5

Accepted Answer

3.85 and 0.65

Answer

-8.14 and -6.14

Answer

4.07 and 3.07

Answer

ZERO solutions

Question 12

Solve using the Quadratic Formula

6x²+ 12x - 1 = 0

Accepted Answer

x = 0.08, -2.08

Answer

x = -0.08, 2.08

Answer

x = -0.08, -1.91

Answer

x = 0.08, 1.19

Question 13

Use the quadratic formula to find the solutions for
y = 2x² - 9x + 5

Accepted Answer

3.85 and 0.65

Answer

-8.14 and -6.14

Answer

4.07 and 3.07

Answer

ZERO solutions

Question 14

A population of 2000 fish increases at an annual rate of 7.5%.

How many fish will there be in 10 years?

Write an expression to represent the equivalent monthly increase in population.

Accepted Answer

4122; 2000(1.00625)^m, where m is the number of months

Answer

4122; 2000(1.00625)^x, where x is the number of years

Answer

3934; 2000(1.006)^x, where x is the number of years

Answer

3934; 2000(1.006)^m, where m is the number of months

Question 15

Suppose you deposit $1000 in a savings account that pays 4.8% interest compounded monthly.

How much will you have in your account after 1 year? After 2 years?

Accepted Answer

$1049.07; $1100.55

Answer

$1004; $1008.02

Answer

$1048; $1098.30

Answer

$1755.24; $3080.85

Question 16

A zombie outbreak spreads at a rate of 25% per day. If the outbreak begins with 1 zombie, how many zombies will there be after 40 days? Round your answer to the nearest whole number.

Accepted Answer

7,523 Zombies

Answer

9,345 Zombies

Answer

23,958 Zombies

Answer

15,895 Zombies

Question 17

Hinata bought a new car for $18,000. It begins to lose value at a rate of 9% per year. How much will Hinata's car be worth after 10 years?

Accepted Answer

$7,009

Answer

$8,159

Answer

$9,573

Answer

$7,791

Question 18

Ash took a loan out for $25,690 to purchase a truck. At an interest rate of 5.2% compounded monthly, how much total will he have paid after 5 years?

Accepted Answer

$33,299.42

Answer

$34,157.04

Answer

$34,710.88

Answer

$33,672.68

Question 19

Principal: $5000
Interest Rate: 3.75%
Time: 25 years
Compounded Monthly
State the future account balance.

Accepted Answer

$12,749.30

Answer

$12712.31

Answer

$12,657.59

Answer

$12550.84

Question 20

There are 50 turtles at the zoo right now.  The population is expected to increase 6% each year.  How many turtles are expected at the zoo in 7 years?

Accepted Answer

75 turtles

Answer

978 turtles

Answer

1,342 turtles

Answer

65 turtles

Question 21

Compound Interest:
AX Online offers 12% interest compounded quarterly.
TD Bank offers 15% interest compounded semi-annually.
Harrison has $5,000 to deposit. And he can keep it in the bank for 2 years. Which bank will yield him more money?

Accepted Answer

TD Bank--gives approx $345 more

Answer

AX Online--gives approx $400 more

Answer

AX Online--gives approx $725 more

Answer

TD Bank--gives approx $680

Question 22

Cars depreciate in value over time.  Priscilla's Mustang is currently worth $20,000.  It depreciates at a rate of 7% each year.  How many years will her car be worth approximately $15,000?

Accepted Answer

4 years

Answer

2 years

Answer

3 years

Answer

5 years

Question 23

Twenty years ago, Mr. Davis purchased his home for $160,000. Since then, the value of the home has increased about 5% per year. How much is the home worth today?

Accepted Answer

$424,527.63

Answer

$176,783.29

Answer

$57,357.75

Answer

$532,041,076.80

Question 24

Bruno was given $2000 when he turned 3 years old. His parents invested it at a 2% interest rate compounded annually. No deposits or withdrawls were made. Which expression can be used to determine how much money Bruno had in the account when he turned 16?

Accepted Answer

2000(1+0.02)¹³

Answer

2000(1-0.02)¹³

Answer

2000(1+0.02)¹⁶

Answer

2000(1-0.02)¹⁶

untitled

40 questions

Simplify:
√-108

Simplify
(-6 - 2i)²

Multiply:
(4 – 3i)(-7 – 2i)

(3 + 8i)(-2 - i)

Simplify

Multiply:
(4 – 3i)(7 + 2i)

2 - √-9

$\sqrt{96}$

$-1+5p^2=-86$

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untitled

40 questions

Simplify:√-108

Simplify(-6 - 2i)2

Multiply: (4 – 3i)(-7 – 2i)

(3 + 8i)(-2 - i)

Simplify

Multiply: (4 – 3i)(7 + 2i)

2 - √-9

96\sqrt{96}96​

−1+5p2=−86-1+5p^2=-86−1+5p2=−86

Create a free account and access millions of resources

Similar Resources on Wayground

Popular Resources on Wayground

Discover more resources for Mathematics

Simplify:
√-108

Simplify
(-6 - 2i)²

Multiply:
(4 – 3i)(-7 – 2i)

Multiply:
(4 – 3i)(7 + 2i)

$\sqrt{96}$

$-1+5p^2=-86$