Add or subtract. Simplify the answer.12
- 8
A. 20
B. 3
C. 3
D. 19
Answer: C
Mathematics
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Identify the equation as either an identity or not.
= 1
A. Not an identity B. Identity
Mathematics
Use the distributive property to rewrite the algebraic expression without parentheses. Then simplify the result, if possible.10(x + 4)
A. 10x + 40 B. x + 40 C. 10x + 4 D. 10x + 14
Mathematics
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 4 foot-candles, find the intensity on a screen 20 ft from the light.
A. 
foot-candle
B. 1
foot-candles
C. 
foot-candle
D. 2 foot-candles
Mathematics
Find the y-intercept of the linear equation x+ y- 4= 0.
What will be an ideal response?
Mathematics