Solve the radical equation, and check all proposed solutions.
= x + 3
A. {-8}
B. {-7}
C. {10}
D. {8}
Answer: D
Mathematics
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Evaluate the expression without using a calculator, or state that the value does not exist. Simplify the answer to the extent possible.sech-1(ln 6)
A. 
B. 
C. 
D. does not exist
Mathematics
Solve the equation by completing the square.
+ x + 1 = 0
A. -5 ± 
B. 5 + 
C. -10 ± 
D. 5 - 
, 5 + 
Mathematics
Solve the problem.Below is a diagram of a water slide. The slide is 26 ft long. The ladder leading to the slide is 19 ft long. How far is it from the end of the slide to the foot of the ladder? Round your answer to the nearest thousandth if necessary. 
?
A. 157.5 ft B. 8.874 ft C. 22.5 ft D. 17.748 ft
Mathematics
Divide and simplify.
÷ 3
A. 8
B. 
C. 
D. 
Mathematics