Write the fraction as a percent rounded to the nearest tenth, if necessary.

A. 1.4% 
B. 70%
C. 14.3% 
D. 20.4% 


Answer: C

Mathematics

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Solve the problem.The equation y = 0.002x - 0.20 can be used to determine the approximate profit, y in dollars, of producing x items. How many items must be produced so the profit will be at least $3933?

A. x ? 1,966,600 B. x ? 1,966,400 C. x ? 1,966,600 D. 0 < x ? 1,966,599

Mathematics

Solve the problem.In a certain memory experiment, subject A is able to memorize words at a rate given by In the same memory experiment, subject B is able to memorize at the rate given by  How many more words does subject B memorize from t = 0 to t = 18 (during the first 18 minutes)?

A. -17 B. 59 C. -6 D. 53

Mathematics

Calculate the expression, and write the answer in scientific notation. ? ?

A.
B. ?
C. ?
D. ?

Mathematics

Evaluate the expression (5+10i)(7-9i) and write the result in the form a + bi.

What will be an ideal response?

Mathematics