Solve the equation by the method of your choice. Simplify irrational solutions, if possible.2x2 = -8x - 1

A.
B.
C.
D.


Answer: C

Mathematics

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Write the following fraction in decimal form. ? ?

A.


B.


C.


D.


E.

none of these


Mathematics

For an arc length s, area of sector A, and a central angle ? of a circle of radius r, find the indicated quantity.? = 2.5 radians, s = 10 in., find r

A. 25 in. B. 8 in. C. 4 in. D. 4.3 in.

Mathematics

Solve the problem.The angle of elevation from a rowboat moored 1929 feet from a cliff is 10°39'. Find the height of the cliff to the nearest foot.

A. 366 ft B. 363 ft C. 373 ft D. 376 ft

Mathematics

Write the complex number in polar form. Express the argument in radians.- 6 + 6i

A. 6
B. 12
C. 6
D. 12

Mathematics