Evaluate the expression. Make sure you simplify.7[(-8) + 6(-7 + 3)]
A. 52
B. -80
C. -224
D. 56
Answer: C
Mathematics
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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
Compute the determinant of the matrix by cofactor expansion.
A. -55 B. 55 C. -67 D. 17
Mathematics
Solve by completing the square.
4x² + 2x – 3 = 0
Mathematics
Evaluate the expression for the given values of the variables, if possible.a ? (-b)
a = -11, b = -3
A. -133 B. -33 C. -36 D. -330
Mathematics