Perform the indicated operation without the use of a calculator and express each answer in decimal notation.

A. 0.00142857
B. 700
C. 100
D. 0.07


Answer: D

Mathematics

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Add.7.471 + 18.827 + 170.160

A. 196.448 B. 196.348 C. 196.458 D. 196.358

Mathematics

Solve for x. Be sure to reduce your answer. Check your solution.-x = -10

A. x = -1 B. x = 0 C. x = 10 D. x = -10

Mathematics

Find the phase shift of the function.y = cos 

A. - 
B.
C. 2?
D. 1

Mathematics

Solve the problem.What is the intensity in watt/m2 of a noise measured at 92 decibels?   where S0 is 10-12 watt/m2. (Express in scientific notation, and round to three significant digits.)

A. 9.89 × 1015 watt/m2 B. 1.58 × 10-2 watt/m2 C. 9.2 × 10-10 watt/m2 D. 1.58 × 10-3 watt/m2

Mathematics