Answer the question.The points (
, -2) and (6
, 13) are the points at which the diagonal of a square intersects the square. What are the coordinates of the center of the square?
A. 
B. 
C. 
D. 
Answer: B
Mathematics
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Divide. Simplify, if necessary.
÷ 
A. - 
B. 
C. - 
D. - 
Mathematics
Find the principal square root of the number. Approximate the answer to the nearest hundredth whenever appropriate.y2, y > 0
A. y4 B. -y, y C. y D. -y
Mathematics
Evaluate.
, when p = -21 and q = -3
A. 21 B. -21 C. -49 D. 49
Mathematics
Solve.There are currently 57 million cars in a certain country, decreasing by 0.5% annually. How many years will it take for this country to have 39 million cars? Round to the nearest year.
A. 578 yr B. 76 yr C. 5 yr D. 36 yr
Mathematics