Use the Pythagorean Theorem to find the unknown length. Give the exact answer in simplified form. Then give an approximate answer rounded to two decimal places when necessary.
A. x = 112; x ? 10.58
B. x = 130; x ? 11.4
C. x = 20; x ? 4.47
D. x = 28; x ? 5.29
Answer: B
Mathematics
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A. ? B. {1.454, 4.659} C. {1.4188, 4.6672} D. {1.4502, 4.6867}
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Solve the equation.log5(x + 3) = 1
A. {-2} B. {2} C. {8} D. {4}
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Find an expression, in factored form, for the area of the shaded region.
A. (x + 2)(x + 6) B. (x + 3)(x + 5) C. (x + 1)(x + 7) D. (x - 1)(x - 7)
Mathematics