Find the requested value.Find sin ? if tan ? = - 
and cos ? = 
.
A. 
B. 
C. - 
D. - 
Answer: C
Mathematics
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Factor the polynomial by grouping.x2 + 5x + 8x + 40
A. (x - 5)(x - 8) B. (x + 5)(x + 8) C. (x - 5)(x + 8) D. prime
Mathematics
Evaluate the logarithm.log7(
)
A. 0 B. -1 C. 1 D. 7
Mathematics
Calculate 
. You need not expand your answer.
?
?
A. 
B. 
C. 
D. 
E. 0.5
Mathematics
Determine whether the equation defines y as a function of x. y = ± 
A. function B. not a function
Mathematics