AnswersCrowley Credit Recovery Algebra II APerformance Task: Going on a Round Trip

Performance Task: Going on a Round Trip — Unit test Answers

10 verified answers2 views
1
Free Preview

What is the additive inverse of the expression below, where a and b are real numbers?

Question illustration
A
-1
B
0
C
2 a minus b
Option C
D
Negative 2 a minus b
Option D
2
Free Preview

A water tank has 22 gallons of water. It begins to receive 26 gallons per hour for a number of hours. If the tank needs to fill to at least 516 gallons, which of the following is the minimum number of hours the tank should continue filling?

5
5.2
1
19
2
20.7
2
23
3

How many liters of water should be evaporated from 60 liters of a 28% salt solution so that the remaining solution contains 32% salt?

A
7.5 liters
B
8.4 liters
C
43.2 liters
D
52.5 liters
4

The cost of producing x soccer balls in thousands of dollars is represented by h(x) = 5x + 6. The revenue is represented by k(x) = 9x – 2. Which expression represents the profit, (k – h)(x), of producing soccer balls?

A
14x – 8
B
14x + 4
C
4x – 8
D
4x + 4
5

Which property of real numbers is shown below?

Question illustration
A
identity property of multiplication
B
commutative property of addition
C
distributive property
D
identity property of addition
6

Which of the following is an odd function?

A
g(x) = x2
B
g(x) = 5x – 1
C
g(x) = 3
D
g(x) = 4x
7

The graph shows the distance in miles of a runner over x hours. What is the average rate of speed over the interval [9, 11]?

Question illustration
A
Two-fifths
Option A
B
1
C
2
D
Five-halves
Option D
8

Cheryl has $56 and wants to buy as many notebooks as she can to donate to her school. If each notebook costs $1.60, which inequality shows n, the maximum number of notebooks she can buy with her money?

A
1.6 n greater-than-or-equal-to 56
Option A
B
1.6 n less-than-or-equal-to 56
Option B
C
56 n less-than-or-equal-to 1.6
Option C
D
56 n greater-than-or-equal-to 1.6
Option D
9

Which graph shows all the values that satisfy

Question illustration
A
Option
Option A
B
Option
Option B
C
Option
Option C
D
Option
Option D
10

The height in feet, h, of a model rocket t seconds after launch is given by the equation . The average rate of change in h(t) between t = 1 second and t = 3 second is 6. What does the average rate of change tell you about the rocket?

Question illustration
A
The rocket is traveling six times as fast when t = 3 than it is when t = 1.
B
The rocket is at a greater height when t = 3 than it is when t = 1.
C
The rocket is 6 feet higher above the ground when t = 3 than it is when t = 1.
D
The rocket is traveling at a constant rate of 6 feet per second between t = 1 and t = 3.
11

For what value of is the function one-to-one?

Question illustration
A
2
B
5
C
11
D
13
12

Which graph shows the solution set of the compound inequality or

Question illustration
A
A number line goes from negative 10 to positive 10. An open circle appears at negative 4 and positive 5. The number line is shaded between the two circles.
Option A
B
A number line goes from negative 10 to positive 10. An open circle appears at negative 4 and positive 5. The number line is shaded from negative 4 toward negative 10. The number line is also shaded from positive 5 toward positive 10.
Option B
C
A number line goes from negative 10 to positive 10. An open circle appears at negative 4. The number line is shaded from negative 4 toward negative 10.
Option C
D
A number line goes from negative 10 to positive 10. An open circle appears at positive 5. The number line is shaded from positive 5 toward positive 10.
Option D
13

The domain of u(x) is the set of all real values except 0 and the domain of v(x) is the set of all real values except 2. What are the restrictions on the domain of ?

Question illustration
A
u(x) 0 and v(x) 2
Option A
B
x 0 and x cannot be any value for which u(x) 2
Option B
C
x 2 and x cannot be any value for which v(x) 0
Option C
D
u(x) 2 and v(x) 0
Option D
14

Layna can paint a 350-square foot room in 4 hours. It takes Bebe 7 hours to paint the same room. Which equation can be used to find the time in hours, t, it takes Layna and Bebe to paint the room together? Rate(Rooms per Hour)Time(Hours)Fraction CompletedLayna Bebe

Question illustration
A
One-fourth t + one-seventh t = 1
Option A
B
One-fourth t times one-seventh t = 1
Option B
C
4 t + 7 t = 1
Option C
D
4 t minus 7 t = 1
Option D
15

It takes Franklin 14 hours to make a 200-square-foot cement patio. It takes Scott 10 hours to make the same size patio. Which equation can be used to find x, the number of hours it would take Franklin and Scott to make the patio together?

A
14 x + 10 x = 200
Option A
B
One-fourteenth x minus one-tenth x = 1
Option B
C
One-fourteenth x plus one-tenth x = 1
Option C
D
14 x minus 10 x = 200
Option D
16

A cashier earns $7 an hour. If x is the number of hours worked, which function represents the cashier’s earnings?

A
y = 7x
B
y = x Superscript 7
Option B
C
y = StartFraction 7 Over x EndFraction
Option C
D
y = 7
Option D
17

If r(x) = 2 – x2 and w(x) = x – 2, what is the range of ?

Question illustration
A
Option
Option A
B
Option
Option B
C
Option
Option C
D
Option
Option D
18

If f(x) = x2 – 25 and g(x) = x – 5, what is the domain of ?

Question illustration
A
all real values of x
B
all real values of x except x = 5
C
all real values of x except x = –5
D
all real values of x except x = 5 and x = –5
19

Which equation shows the commutative property of addition?

A
4 + 3 = 3 + 4
B
1(3) = 3
C
(2 + 7) + 12 = 2 + (7 + 12)
D
4 + 0 = 4
20

Which of the following sets is closed under subtraction?

A
integers
B
whole numbers
C
natural numbers
D
irrational numbers

Did you find these answers helpful?

More from this Course

Quiz
1 verified answers

Unit Test

Assignment
24 verified answers

Complex Numbers

Instruction
10 verified answers

Instruction