Use the Half-angle Formulas to find the exact value of the trigonometric function. cos
A. 
B. 
C. 
D. 
Answer: B
Mathematics
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Translate the statement into an equation. Let x represent the unknown number. DO NOT SOLVE.When 3 times a number is subtracted from 7 times the number, the result is 28.
A. 3x(7 - x) = 28 B. 3(x - 7) = 28x C. 7x - 3x = 28 D. 3x + 7x = 28
Mathematics
Solve the formula for the given variable.V = 
Ah
for A
A. A = 
B. A = 
C. A = 
D. A = 
Mathematics
Refer to this figure to decide whether the statement is true or false. 
is perpendicular to 
.
A. True B. False
Mathematics
Evaluate the expression.77764/5
A. 10,077,696 B. 1,679,616 C. 1296 D. 279,936
Mathematics