Solve the problem.The time T necessary to make an enlargement of a photo negative varies directly as the area A of the enlargement. If 175 seconds are required to make a 5-by-5 enlargement, find the time required for a 6-by-7 enlargement.
A. 378 sec
B. 336 sec
C. 294 sec
D. 252 sec
Answer: C
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Give an appropriate answer.Suppose src="https://sciemce.com/media/4/ppg__rrr0609191216__f1q205g6.jpg" style="vertical-align: -38.0px;" /> 
f(x) = 1 and 
g(x) = -3. Write out the statement of the Main Limit Theorem that justifies the rewriting of the denominator in step (b) of the following calculation. If the step is not justified, state this.
= 
= 
A. 
[f(x)]n = 
n
B. 
= 
, provided 
g(x) ? 0
C. 
[f(x) ? g(x)] = 
f(x) ? 
g(x)
D. Step is not justified
Write an equation, in slope-intercept form if possible, of the line through the pair of points.(7, 1) and (-6, 1)
A. -6x + 7y = 0 B. y = 1 C. x = 7 D. 7x - 6y = 0
Calculate dy/dt using the given information.xy2 = 4; dx/dt = -5, x = 4, y = 1
A. - 
B. 
C. 
D. - 
Find the derivative of the given function. Simplify and express the answer using positive exponents only.
?
A. 
B. 
C. 
D. 
E. 