Find the unknown length in the right triangle. Simplify the answer if necessary.

A. 2
B. 4
C. 2
D. 2


Answer: B

Mathematics

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Solve the system using substitution.

A.
B. no solution
C.
D.

Mathematics

A function of x is depicted in the graph. Find any input values that produce the indicated output.f(x) = -2

A. x = -4 and x = 0 B. x = 4 and x = 0 C. x = -8 and x = 4 D. x = -4

Mathematics

Write the expression with only positive exponents and evaluate if possible. Assume all variables represent nonzero real numbers.30

A. -1 B. 1 C. 3 D. 0

Mathematics

Simplify the expression. Write your answer without negative exponents. Whenever an exponent is negative or zero, assume that the base is not zero.(x-8)7

A. -x56
B. -8x56
C. -8x7
D.

Mathematics