Solve.The pitch of a screw is the distance between threads. With each complete rotation of the screw, it goes in or out a distance equal to its pitch. How far will a screw with a pitch of 
in. go into a piece of wood when it is turned 10 complete rotations clockwise?
A. 
in.
B. 
in.
C. 
in.
D. 
in.
Answer: C
Mathematics
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Is the number 20,160 prime or composite? Explain.?
A. ?It is prime, because it is odd. B. ?It is prime, because the sum of the digits is not divisible by 3 or 9 and it is odd. C. ?It is composite, since the sum of the digits is divisible by 7. D. ?It is composite, since it is divisible by 7 and 11. E. ?It is composite, since 7 and 13 are factors.?
Mathematics
Multiply and simplify.5x
? 4x
A. 60x2m3 B. 20x2m C. 60x2m D. 60x2
Mathematics
For the given expression y'(x), sketch the general shape of the graph of y = f(x). [Hint: it may be helpful to find y".]y' = x2(6 - x)
A. 
B. 
C. 
D. 
Mathematics
Evaluate the limit.
a. -448
b. -1070
c. -1090
d. -1080
e. 320
Mathematics