Use the distributive law to write an equivalent expression.6(x + 7)
A. x + 42
B. 6x + 7
C. 6x + 42
D. 42x
Answer: C
Mathematics
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Use the addition formulas to derive the identity.cos 
= -sin x
What will be an ideal response?
Mathematics
Perform the indicated operation.14 lb 1 oz - 8 lb 14 oz
A. 6 lb 12 oz B. 6 lb 3 oz C. 5 lb 3 oz D. 22 lb 3 oz
Mathematics
Factor completely. If the polynomial cannot be factored, say it is prime.10x2 + 23x + 12
A. (2x - 3)(5x - 4) B. (2x + 3)(5x + 4) C. (10x + 3)(x + 4) D. prime
Mathematics
Provide an appropriate response.Can you find the sum of the first n terms of the geometric series 2 + 4 + 8 + . . . ? Why or Why not?
A. Yes. The common ratio, r, is equal to 1. B. No. The common ratio, r, is greater than 1. C. No. The first n terms do not form a geometric series. D. Yes. The first n terms form a finite geometric series.
Mathematics