Determine the number by which both sides of the equation must be multiplied or divided, as specified, to obtain just x on the left side.
x = -7; multiply by
A. 
B. -7
C. -8
D. - 
Answer: A
Mathematics
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Find the first term a1 and the common difference d of the arithmetic sequence.10, 15, 20, 25, . . .
A. a1 = 5, d = 15 B. a1 = 5, d = 5 C. a1 = 10, d = 10 D. a1 = 10, d = 5
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Verify the identity.cot3 x = cot x (csc2 x - 1)
What will be an ideal response?
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Find the exact value under the given conditions.sin ? = 
, 
< ? < ?; cos ? = 
, 0 < ? < 
Find sin (? - ?).
A. - 
B. 
C. 
D. 
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Solve the problem.A developer wants to enclose a rectangular grassy lot that borders a city street for parking. If the developer has 264 feet of fencing and does not fence the side along the street, what is the largest area that can be enclosed?
A. 8712 ft2 B. 4356 ft2 C. 17,424 ft2 D. 13,068 ft2
Mathematics