AnswersReading HS- Integrated Math ICumulative Exam

Cumulative Exam — Cumulative exam Answers

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61
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What is the value of x in the equation ?

Question illustration
A
–50
B
–40
C
–8
D
–6
62
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Which represents the polynomial written in standard form?4m – 2m4 – 6m2 + 9

A
9 + 4m + 2m4 – 6m2
B
2m4 – 6m2 – 4m + 9
C
9 – 6m2 + 4m – 2m4
D
–2m4 – 6m2 + 4m + 9
63

The formula for the circumference of a circle is , where d is the length of the diameter. If d is a rational number, what can you conclude about the circumference?

Question illustration
A
It is a fraction.
B
It is a repeating or terminating decimal.
C
It is a rational number.
D
It is an irrational number.
64

What is the coefficient of x after simplifying (−x−5)2?

A
−25
B
−10
C
10
D
25
65

Which expression has a value of ?

Question illustration
A
(StartFraction 1 Over 108 EndFraction) cubed
Option A
B
(StartFraction 1 Over 9 EndFraction) Superscript 4
Option B
C
(StartFraction 1 Over 6 EndFraction) squared
Option C
D
(one-half) Superscript 5
Option D
66

Which is the solution to the equation ? Round to the nearest tenth if necessary.

Question illustration
A
1.4
B
4
C
18.2
D
27
67

When 122 is decreased by five times a number, the result is equal to the number increased by 20. What is the number?

A
17
B
23.7
C
25.5
D
35
68

Jorge wrote the equation . What is the value of x?

Question illustration
A
–4
B
–2
C
2
D
4
69

The variables A, B, and C represent polynomials where A = x + 1, B = x2 + 2x − 1, and C = 2x. What is AB + C in simplest form?

A
x3 + 3x − 1
B
x3 + 4x − 1
C
x3 + 3x2 + 3x − 1
D
x3 + 2x2 − x + 1
70

If the relationships below are given in the form (input, output), which pairing always describes a function?

A
(a person’s age in years, that same person’s height in inches)
B
(a person’s weight in pounds, that same person’s height in inches)
C
(a person’s height in centimeters, that same person’s height in inches)
D
(a person’s telephone number, that same person’s height in inches)
71

What is the slope of the line on the graph below?

Question illustration
A
–
Option A
B
One-half
Option B
C
1
D
2
72

The graph of y = x2 + 11x + 24 is equivalent to the graph of which equation?

A
y = (x + 8)(x + 3)
B
y = (x + 4)(x + 6)
C
y = (x + 9)(x + 2)
D
y = (x + 7)(x + 4)
73

The point is plotted on the number line. What whole number best approximates the value of x?

Question illustration
A
81
B
87
C
88
D
93
74

A perfect square trinomial can be represented by a square model with equivalent length and width. Which polynomial can be represented by a perfect square model?

A
x2 – 6x + 9
B
x2 – 2x + 4
C
x2 + 5x + 10
D
x2 + 4x + 16
75

In the table, x represents the age in years of a collectible baseball card, and y represents its value in dollars. Cost of a Pack of Baseball CardsAge in years, xValue in dollars, y50.75105.751510.752015.75Which statement is correct about the slope of the linear function that the table represents?

A
The slope is positive because as the age decreases, the value increases.
B
The slope is positive because as the age increases, the value increases.
C
The slope is negative because as the age decreases, the value decreases.
D
The slope is negative because as the age increases, the value decreases.

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