Solve the problem.An experiment calls for cooling a mixture to -13°F, then increasing the temperature 80 degrees. What is the final temperature the experiment is to obtain?
A. 67°F
B. -93°F
C. -67°F
D. 93°F
Answer: A
Mathematics
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Solve the problem.If an object is propelled upward with an initial velocity of 80 meters per second, then its height in meters after t seconds is given by h = 80t - 4.9t2. After how many seconds will the object reach its maximum height? Round your answer to the nearest tenth.
A. 16.3 seconds B. 6.7 seconds C. 8.2 seconds D. 10.3 seconds
Mathematics
Translate to a proportion. Do not solve.3.7% of 62 is what?
A. 
= 
B. 
= 
C. 
= 
D. 
= 
Mathematics
Evaluate the expression when x is 
. Use exact values.
?
7 cos 3x
?
A. 0 B. 7 C. 3 D. 0 E. -3
Mathematics
Answer the question.The ordered pair (1, ) is a solution of the equation 
Fill in the blank(s) with the appropriate word(s).
Mathematics