The amount of electricity used in a typical all-electric home is shown in the circle graph. If, in a certain month, a home used 2,000 kwh (kilowatt-hours), find the amounts of electricity used by the water heater from the graph.
?
?
A. 2,200 kwh
B. 22,000 kwh
C. 220 kwh
D. 1,818 kwh
E. 182 kwh
Answer: C
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Solve the problem.Teri wants to buy a piece of ribbon that measures 551 cm. The price is $2.03 per meter. How much will Teri have to pay?
A. $5.60 B. $10.15 C. $10.25 D. $11.19
Simplify the expression.
+ 
- 
A. 4
B. 
C. 
D. 
Factor, using the given factor. Assume all variables represent positive real numbers.(x - 8)-3/2 - (x - 8)-1/2 + (x - 8)1/2; (x - 8)-3/2
A. (x - 8)-3/2(x2 - 17x - 65) B. (x - 8)3/2(x2 + 16x - 73) C. (x - 8)-3/2(x2 + 17x - 73) D. (x - 8)-3/2(x2 - 17x + 73)
Fill in the blank with one of the words or phrases listed below. Not all choices will be used and some choices may be used more than once.
An equation that can be written in the form ax2 + bx + c = 0 (with a not 0) is called a 
.
A. difference of two squares B. greatest common factor C. perfect square trinomial D. quadratic equation