Solve the system by the substitution method.x - 2y = 3x2 - xy = 20
A. {(-5, -1), (
, 8)}
B. {(5, 1), (- 
, -8)}
C. {(5, 1), (-8, - 
)}
D. {(-5, -1), (8, 
)}
Answer: C
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Use the substitution formula to evaluate the integral.
A. 2
- 6
B. 
- 
C. 
- 3
D. - 2
+ 6
Decide if the answer is reasonable or unreasonable by rounding the numbers and estimating the answer. If the answer is not reasonable, find the correct answer.80.4 ÷ 77.7 = 10.35
A. Unreasonable, should be 0.01035 B. Unreasonable, should be 0.1035 C. Reasonable D. Unreasonable, should be 1.035
Name the property illustrated by the sentence.8(a + b) = 8(b + a)
A. Commutative property of addition B. Commutative property of multiplication C. Associative property of addition D. Distributive property
Read the measurement shown on the metric micrometer.
A. 54.2 mm B. 5.42 mm C. 0.542 mm D. 1.92 mm E. 10.42 mm