Simplify. Assume that variables can represent any real number.
A. 7t
B. 24
C. 7
D. 7t2
Answer: C
Mathematics
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Solve the problem.The temperature at the South pole was -24° at 8 am. At 3 pm, it was 37°. By how many degrees did the temperature rise?
A. by -61° B. by 61° C. by -13° D. by 13°
Mathematics
If the function is one-to-one, find its inverse. If not, write "not one-to-one."f(x) = -8x + 1
A. f-1(x) = - 
x - 
B. f-1(x) = - 
x + 1
C. f-1(x) = - 
x - 1
D. f-1(x) = - 
x + 
Mathematics
Find dy/dx by implicit differentiation.2xy - y2 = 1
A. 
B. 
C. 
D. 
Mathematics
Divide. Leave your answer in exponent form. Assume that all variables in any denominator are nonzero.
A. z14 - z13
B. z27
C. z
D. 
Mathematics