Solve the problem.Find the missing length in the following right triangle. If necessary, round to the nearest tenth. 
A. 14 in.
B. 221 in.
C. 21 in.
D. 442 in.
Answer: C
Mathematics
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The lengths of the legs of a right triangle are given. Find the hypotenuse.a = 24, b = 7
A. 625 B. 20 C. 25 D. 5
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Verify the identity.(cos ? + sin ?)2 + (cos ? - sin ?)2 = 2(cos2? + sin2?)
What will be an ideal response?
Mathematics
Provide an appropriate response.Simplify: -3 + 8
Fill in the blank(s) with the appropriate word(s).
Mathematics
Find the largest open intervals where the function is concave upward.f(x) = 
A. (0, ?) B. (0, ?), (-?, 0) C. (-?, ?) D. (-?, 0)
Mathematics