Perform the indicated operation without the use of a calculator and express each answer in scientific notation.(0.000005) × (80,000)
A. 4 × 10-10
B. 4 × 10-2
C. 4 × 10-1
D. 4 × 10-24
Answer: C
Mathematics
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Find the curvature of the curve r(t).r(t) = (7 + ln(sec t))i + (4 + t)k, -?/2 < t < ?/2
A. ? = -cos t B. ? = sin t C. ? = cos t D. ? = 1 - cos t
Mathematics
For an arc length s, area of sector A, and a central angle ? of a circle of radius r, find the indicated quantity.r = 5 cm, s = 30 cm, find ? in radian measure
A. 6 B. 150? C. 150 D. 6?
Mathematics
Find the indicated sum.
A. 120 B. 39 C. 84 D. 30
Mathematics
Find the value of c for which the expression is a perfect-square trinomial. Then factor the perfect-square trinomial.x2 + 8x + c
A. 64; (x + 8)2 B. 8; (x + 64)2 C. 16; (x + 4)2 D. 4; (x + 16)2
Mathematics