Simplify.-?-20?
A. 40
B. 0
C. -20
D. 20
Answer: C
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Given y = f(u) and u = g(x), find dy/dx = f'(g(x))g'(x).y = tan u, u = -7x + 6
A. sec2(-7x + 6) B. - sec2(-7x + 6) C. -7 sec2(-7x + 6) D. -7 sec (-7x + 6) tan (-7x + 6)
Solve.On a recent trip, Asha drove 258 miles on 10
gallons of gasoline. How many miles per gallon did she average?
A. 2623 miles per gallon
B. 
miles per gallon
C. 25
miles per gallon
D. 430
miles per gallon
Solve the problem.Find the surface area of a right regular hexagonal pyramid with sides 3 cm and slant height 6 cm. Round your answer to the nearest hundredth.
A. 70.15 cm2 B. 65.69 cm2 C. 108.00 cm2 D. 77.39 cm2
Write the phrase as a variable expression. Use x to represent "a number."9 decreased by 4 times a number
A. 9 - 4x B. 4x - 9 C. 4 - 9x D. 9x - 4