Tell whether the angle is acute, right, obtuse, straight, or reflex.
A. Straight
B. Acute
C. Right
D. Zero
Answer: C
Mathematics
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Find the GCF of 81 and 125. ?
A. 5 B. 1 C. 6 D. 2
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Find the solution to the system of equations by the substitution method.
A. (5, 7) B. (4, 8) C. (-4, 7) D. (8, 4)
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Find the curvature of the curve r(t).r(t) = (10 + ln(sec t))i + (4 + t)k, -?/2 < t < ?/2
A. ? = -cos t B. ? = 1 - cos t C. ? = cos t D. ? = sin t
Mathematics
Use properties of exponents to simplify the expression. Express answer in exponential form.7-3 ? 7
A. -3 ? 72 B. 7-3 C. -72 D. 7-2
Mathematics