Simplify and write the answer using scientific notation. Use the correct number of significant digits.
A. 10 × 104
B. 5 × 1014
C. 10 × 1014
D. 5 × 104
Answer: B
Mathematics
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Find the values of x such that the given function has the stated value.h(x) = -x2 + 9x + 20; h(x) = 40
A. {-5, -4} B. {5, 4} C. {5, -4} D. {-5, 4}
Mathematics
Complete the identity.sin 
= ?
A. -cos x B. sin x C. cos x D. -sin x
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Solve the formula for the given letter.
What will be an ideal response?
Mathematics
Determine whether the positive or negative sign makes the equation correct.cos (5?/6) = ±
A. Negative sign B. Positive sign
Mathematics