Use scientific notation to perform the following operations. Leave your answer in scientific notation form.(7 × 105)(2 × 102)

A. 1.4 × 107 
B. 1.4 × 109
C. 1.4 × 1010
D. 1.4 × 108 


Answer: D

Mathematics

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Use implicit differentiation to find dy/dx and d2y/dx2.4 - y = 2x

A.  =  - 2;  = - 
B.  =  = 
C.  =  = 
D.  =  = 

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Find the average value of the function f over the region R.f(x, y) = sin (x + y)R: 0 ? x ? , 0 ? y ? 

A.
B. ?2
C.
D. 4?2

Mathematics

Find the inverse of the function.f(x) = -x2 + 17, x ? 0

A. f-1(x) = - 
B. f-1(x) = x2 + 17
C. f-1(x) = 
D. f-1(x) = 

Mathematics

Solve the problem.In how many ways can 5 letters from the word PAYMENT be chosen and arranged?

A. 1260 B. 42 C. 2520 D. 35

Mathematics