What is the range, mean and å of the following set of numbers?
85, 84, 59, 80, 82, 89, 74, 91, 65, 70, 74, 89, 82, 75, 74, 73, 69, 65, 83.
range = 32
mean = 77
å = 9.018
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Multiply in the indicated base.E4sixteen × 2Dsixteen
A. 2814sixteen B. 2BC8sixteen C. 2AC4sixteen D. 2AD8sixteen
Solve the problem.The intensity I of light varies inversely as the square of the distance D from the source. If the intensity of illumination on a screen 5 ft from a light is 2 
find the intensity on a screen 10 ft from the light.
A. 
foot-candle
B. 1 
foot-candles
C. 2 foot-candles
D. 
foot-candle
Find an equation of the line through the pair of points. Write the equation in the form Ax + By = C.
and 
A. 22x + 8y = -18 B. -22x - 8y = -18 C. -22x - 8y = 18 D. -8x - 22y = -18
Use a calculator to find the natural logarithm correct to four decimal places.ln 0.983
A. -0.0171 B. 0.0171 C. -0.0074 D. 0.0074