Evaluate.10 - x2 for x = -7
A. -39
B. 24
C. -4
D. 59
Answer: A
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Give an appropriate answer.How are the partial derivatives ?f/?x and ?f/?y of a function f(x,y) defined? How are they interpreted and calculated?
What will be an ideal response?
Solve the problem.A football team lost 9 yards on each of two consecutive plays. Represent the total loss as product of integers and find the total loss.
A. 9 - 2 = 7 yds; 7 yard loss B. 2 ? (-9) = -20 yds; 20 yard loss C. 2 + (-9) = -7 yds; 7 yard loss D. 2 ? (-9) = -18 yds; 18 yard loss
Simplify the expression. Use positive exponents. Assume variables represent nonzero real numbers.
A. 4
B. 
C. 4r3
D. 4r-3
Provide an appropriate response.It has been estimated that the average American watches 58,240 hours of television in a lifetime. Write this number in scientific notation.
A. 5.824 × 103 hours B. 5.824 × 104 hours C. 58.24 × 103 hours D. 5.824 × 105 hours