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 foot candles, find the intensity on a screen 15 ft from the light.
A. 1
foot-candles
B. 
foot-candle
C. 
foot-candle
D. 2 foot-candles
Answer: B
Mathematics
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Solve the following equation for x.x + 3
= 5
A. 5
B. 2
C. 8
D. - 2
Mathematics
Factor the trinomial completely. If the trinomial cannot be factored, say it is prime.3y3 - 9y2 - 30y
A. 3y(y + 2)(y - 5) B. (3y2 + 6y)(y - 5) C. 3y(y - 2)(y + 5) D. (y - 2)(3y2 + 15)
Mathematics
Provide an appropriate response.The only consecutive whole numbers that are both prime numbers are 
and 
.
A. 2 and 3 B. 1 and 2 C. 0 and 1 D. 6 and 7
Mathematics
Indicate whether the statement is true or false.If one inequality in a system of two linear inequalities contains the "<" symbol and the other contains the ">" symbol, the graph of the system will have solid boundary lines.
A. True B. False
Mathematics