Evaluate the expression for the given value or values.a2 - b ? c for a = 7, b = 2, c = 2
A. 50
B. 70
C. 45
D. 94
Answer: C
Mathematics
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Find the volume under the surface of the specified figure. z = 2xy; R = {(x, y): 0 ? x ? 5, 0 ? y ? 2}
A. 200 B. 50 C. 100 D. 25
Mathematics
Solve the equation by using the square root property. Simplify all radicals.4x2 = 52
A. {26}
B. {±13}
C. {14}
D. {±
}
Mathematics
Solve.The graph shows the melting points in degrees Celsius of three compounds: Compound A, Compound B and Compound C. 
The melting point of Compound D is 3 times the melting point of Compound A. Find the melting point of Compound D.
A. -111°C B. 111°C C. -121°C D. -101°C
Mathematics
Use multiplication to check the answer. If an answer is incorrect, find the correct answer.
A. Incorrect; should be 552 R7 B. Correct C. Incorrect; should be 551 R5 D. Incorrect; should be 550 R4
Mathematics