Math Test Set 11

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1. Factor the expression. \(16r^{2} − 56r + 49\)

A.\((8r − 7)(2r − 7)\)

B.\((16r − 7)(r − 7)\)

C.\((4r − 49)(4r − 1)\)

D.\((4r − 7)(4r − 7) = (4r − 7)^{2}\)

Question 1 of 10

2. The relation graphed below is a function.

A.True

B.False

Question 2 of 10

Math-Solution of equations

3. Which of the numbers following the given equation is a solution of the given equation?

x − 9 = 4; 16, 14, 20, 13

A.13

B.-13

C.4

D.9

Question 3 of 10

4. Use the elimination method to solve each of the following systems.

−32x + 7y = −238
8x − 4y = 64

A.(7,-2)

B.(7,2)

C.(6,-2)

D.(7,-6)

Question 4 of 10

5. Which of the points (1, −1), (−2, 20), (−4, 31), and (−9, 64) is a solution of the equation y = −6x + 7?

A.(−4, 31)

B.(−2, 20)

C.(1, −1)

D.(−9, 64)

Question 5 of 10

Math-Percent of number

6. What number is 200% of 15?

A.30

B.35

C.15

D.60

Question 6 of 10

Math-Word problems

7. The number −6 is 2 more than an unknown number. Find the unknown number.

A.-8

B.8

C.-4

D.4

Question 7 of 10

8. The number −15 is −5 times larger than an unknown number. Find the unknown number.

A.3

B.-3

C.6

D.-6

Question 8 of 10

Math-Evaluate expression

9. Evaluate a − \(b^{2}\) at a = −2.9 and b = −5.4

A.-32.06

B.32.06

C.32.08

D.-29.16

Question 9 of 10

Math-Square Roots

10. List all square roots of the given number. If the number has no square roots, choose “none”.

441

A.21, -21

B.20, -20

C.22. -22

D.-15, 15

Question 10 of 10

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