Change 109 to base four.
?
A. 1131 four
B. 1101 four
C. 1220 four
D. 1231 four
E. 2113 four
Answer: D
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Solve the problem. Assume that simple interest is being calculated in each case. Round the answer to the nearest cent unless otherwise indicated.John Lee's savings account has a balance of $1130. After 9 months, what will the amount of interest be at 5.0% per year?
A. $56.50 B. $125.56 C. $65.51 D. $42.38
Solve the problem.A wheel with radius 3 m rolls at 20 rad/s. How fast is a point on the rim of the wheel rising when the point is 
radians above the horizontal (and rising)? (Round your answer to one decimal place.)
A. 15.0 m/s B. 30.0 m/s C. 60.0 m/s D. 120.0 m/s
Provide an appropriate response.What is the percent efficiency (E) of an engine if the input (I) is 20,000 calories and the output (P) is 6,200 calories? Use the formula: E = 
.
A. 0.69 B. 0.45 C. 2.23 D. 1.45
Simplify using the product rule.(2x9)(-8x5)
A. -16x45 B. -16x14 C. 16x45 D. 16x14