Write the number in the sentence in words.The control center was suddenly unable to track the satellite when it reached a distance of 128,615 miles from the earth's surface.

A. six hundred fifteen thousand, one hundred twenty-eight
B. one hundred twenty-eight thousand, six hundred fifteen
C. one hundred twenty thousand, eighty-six hundred, fifteen
D. one hundred twenty-eight million, six hundred fifteen


Answer: B

Mathematics

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Find the mid-frequency output voltage in the circuit below when R1 = 1 Kê, R2 = 4 Kê, C1 = 0.1 æF, C2 = 700 pF, and E = 20 V.



a. 4 V
b. 5 V
c. 10 V
d. 16 V
e. 20 V

Mathematics

Find 6% of 3300.

A. 19,800 B. 198 C. 1980 D. 19.8

Mathematics

Express the vector as a product of its length and direction.i + j - k

A.
B.
C.
D. 1

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For the given expression y', find y'' and sketch the general shape of the graph of y = f(x). y' = sin x, 0 ? x ? 2?

A.

B.

C.

D.

Mathematics