Find the area of the figure on the geoboard. Assume that the dots are 1 inch apart.
A. 10 in.2
B. 13 in.2
C. 14 in.2
D. 12 in.2
Answer: D
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Find the inverse of the following one-to-one function.f(x) = 7x - 4
A. f-1(x) = 
B. f-1(x) = 
+ 4
C. f-1(x) = 
D. Not invertible
Solve.If an electromagnetic signal moves at the speed of light, about 186,282 miles per second, how long will it take this signal to travel from Miami, Florida to Fairbanks, Alaska, approximately 4100 miles? (Hint: Time = distance ÷ speed.)
A. 0.02 seconds B. 42 seconds C. 0.04 seconds D. 45 seconds
Solve.The population in a particular country is growing at the rate of 1.4% per year. If 2,546,000 people lived there in 1999, how many will there be in the year 2005? Use the equation
to solve and round to the nearest ten-thousand
A. Approximately 2,710,000 people B. Approximately 3,050,000 people C. Approximately 2,770,000 people D. Approximately 3,320,000 people
Find the sum using the formulas for the sums of powers of integers.
?
?
A. -264 B. 264 C. -506 D. 759 E. 506