Write a numerical expression for the phrase and simplify it.The product of 
and - 
, divided by 
.
A. 
; - 
B. 
; - 
C. 
; - 
D. 
; - 7
Answer: C
Mathematics
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Use sum-to-product identities to rewrite the expression as a product.cos 
- cos 
A. 2 sin 
cos 
B. 2 sin 
sin 
C. -2 sin 
sin 
D. -2 cos 
cos 
Mathematics
Solve.When Maria finished medical school she owed $21,000 in student loans. She repaid 
of the total amount within two years of graduating. How much did she repay within two years of graduating?
A. $1680 B. $16,800 C. $15,120 D. $18,480
Mathematics
If y varies directly as x, find the direct variation equation for the situation.y = 0.8 when x = 0.2
A. y = x + 0.6 B. y = 4x C. y = 0.25x D. y = 0.2x
Mathematics
Factor completely. If the polynomial cannot be factored, say it is prime.3x2 - 27
A. 3(x + 3)2 B. 3(x - 3)2 C. 3(x + 3)(x - 3) D. prime
Mathematics