Consider a square as shown in the figure. Find the total length of the four segments making up the stairs.
?
? 
5 in
5 in
?
A. 2.5 in.
B. 10 in.
C. 15 in.
D. 5 in.
E. 20 in.
Answer: B
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The speed S, in meters per second, of sound in the ocean depends on the depth D, in kilometers. (It depends on other quantities as well, but those will be ignored for this problem.) The relationship is
.
At what depth is the speed of sound 1,604.04 meters per second?
?
A. 4.18 kilometers B. 5.24 kilometers C. 28,802.68 kilometers D. 4.12 kilometers
Use exponential regression to provide an approximate model for the following data. Round your answer to two decimal places. t 1.80 4.50 6.98 9.70 11.97 y 19.83 14.03 10.03 7.67 5.59?
A. ?
B. 
C. ?
D. ?
Solve the problem by using addition, subtraction, multiplication, or division as needed.At the beginning of the year, Mr. Ito put $4806 in the bank. At the end of the year $941 in interest had been earned. How much money was in the account at the end of the year?
A. $3865 B. $4,522,446 C. $5747 D. $5758
Indicate whether the function is one-to-one.A = {(-16, 16), (-13, 16), (-15, -12)}
A. No B. Yes