Solve the problem.The amount of water used to take a shower is directly proportional to the amount of time that the shower is in use. A shower lasting 17 minutes requires 11.9 gallons of water. Find the amount of water used in a shower lasting 9 minutes.
A. 6.3 gal
B. 5.6 gal
C. 7 gal
D. 153 gal
Answer: A
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Solve the problem.The function A(x) = 1.06x -.02x3 gives the approximate alcohol level (in tenths of a percent) in a person's blood x hours after drinking about 8 ounces of 100-proof whiskey. What would the person's alcohol level be 2 hours after drinking? Give answer as a percent.
A. 0.196% B. 0.208% C. 1.96% D. 2.08%
Solve the SSA triangle. Indicate whether the given measurements result in no triangle, one triangle, or two triangles. Solve the resulting triangle. Round the answer to the nearest tenth.B = 96°, b = 3, a = 24
A. A = 48°, C = 36°, c = 27 B. A = 49°, C = 36°, c = 31 C. No triangle exists. D. A = 47°, C = 36°, c = 29
We have encoded a message by assigning the numbers 1 - 26 to the letters a - z of the alphabet, respectively, and assigning 27 to a blank space. We have further encoded it by using an encoding matrix. Decode this message by finding the inverse of the encoding matrix and multiplying it times the coded message.The encoding matrix is A = 
and the encoded message is 9, 11, 56, 9, 10, 55, 12, -3, 43, 9, 5, 30.
Fill in the blank(s) with the appropriate word(s).
Solve the problem.Given that f(x) = 3x2 - 5, find
[f(x) - f(-2)/(x + 2)]
A. 12 B. -17 C. -12 D. Does not exist