Solve the equation by making an appropriate substitution.x-2 + 8x-1 = -13
A. 
B. 
C. 
D. 
Answer: D
Mathematics
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Find the product and simplify. Assume all variables represent nonnegative real numbers.(-
)2
A. 30x B. -30x2 C. 30x2 D. -30x
Mathematics
Given that ? is an angle in standard position whose terminal side contains the given point, provide the exact value of the indicated function.(-7, -6) Find cot ?.
A. 
B. - 
C. - 
D. 
Mathematics
Solve.
(x + 9) > 
(x + 2)
A. x < 
B. x < - 
C. x > - 
D. x > 
Mathematics
Find the area of the SSS triangle ABC. If necessary, round the answer to two decimal places.a = 4, b = 5, c = 7
A. 10.01 B. 16.01 C. 3.46 D. 9.80
Mathematics