Factor by grouping.15a3 + 12a2b - 25ab2 - 20b3
A. (3a2 + 5b2)(5a - 4b)
B. (3a2 - 5b2)(5a + 4b)
C. (15a2 - 5b2)(a + 4b)
D. (3a2 - 5b)(5a + 4b)
Answer: B
Mathematics
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If possible, factor the polynomial completely. If a polynomial cannot be factored, state that it is prime.64k3m - 144k2m2 + 81km3
A. km(8k - 9m)(8k + 9m) B. km(8k + 9m)2 C. (64k2m + km)(k + 81m2) D. km(8k - 9m)2
Mathematics
Find the function value, provided it exists.
; f(7)
A. 3113
B. 
C. Undefined
D. - 
Mathematics
Simplify.
÷ 
A. 
B. 
C. 
D. 
Mathematics
Using your calculator and rounding your answers to the nearest hundredth, find tan ? if
?
sec ? = -1.64 and 
.
?
A. -1.10 B. -1.70 C. -1.80 D. -1.40 E. -1.30
Mathematics