Change the decimals to their fraction or mixed-number equivalents, and reduce answers to lowest terms.0.426
A. 
B. 
C. 
D. 
Answer: A
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Convert as indicated. If necessary, round to the nearest tenth of a degree.91°F to degrees Celsius
A. 32.8°C B. 106.2°C C. 82.6°C D. 195.8°C
Make the required change in the given equation.? = 3 cos ? sin ? to Cartesian coordinates
A. x2 + y2 + z2 - 3x = 0
B. 
= 3x
C. x2 + y2 + z2 - 3z = 0
D. 
= 3y
Solve the problem.Students at Maple School earned $374 selling candles. They want to accumulate $2000 for a club trip. What percent of their goal has been reached?
A. 0.187% B. 5% C. 18.7% D. 50%
Find the unit tangent vector T and the principal unit normal vector N. r(t) = (10t sin t + 10cos t)i + (10t cos t - 10 sin t)j - 10k
A. T = (-cos t)i - (sin t)j; N = (sin t)i + (cos t)j B. T = (cos t)i - (sin t)j; N = (-sin t)i - (cos t)j C. T = (-cos t)i - (sin t)j; N = (sin t)i - (cos t)j D. T = (cos t)i + (sin t)j; N = (-sin t)i + (cos t)j