Use a formula from the list provided to find the area of the figure. 
A. 7.9 square yards
B. 30.36 square yards
C. 15.8 square yards
D. 15.18 square yards
Answer: D
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Rationalize the denominator. Assume that all variables represent positive real numbers and that the denominator is not zero.
A. 
B. 
C. 
D. 
If M is the theoretical maximum charge that a battery can hold and k is a positive constant that depends on the battery and the charger, the length of time (in minutes) required to charge the battery to a given level C is given by
?
.
?
If 
, how long will it take a battery to reach a 60% charge? Assume that the battery was fully discharged when it began charging.
?
Please enter your answer as a number without the units, rounded to one decimal place.
Fill in the blank(s) with the appropriate word(s).
Write a formula for the general term (the nth term) of the arithmetic sequence. Then use the formula for an to find a20, the 20th term of the sequence.2, 6, 10, 14, 18, . . .
A. an = n + 4; a20 = 24 B. an = 2n - 4; a20 = 36 C. an = 4n - 2; a20 = 78 D. an = 4n + 2; a20 = 82
Solve the equation.-8x + 2 = 34
A. 40 B. 6 C. 44 D. -4