Solve the problem.A lake lies between A and C, and lines AB and DE run north-south. If AB = 8.0 mi, DE = 1.3 mi, and DC = 1.4 mi, how far is it from A to C? Round to the nearest tenth.
A. 7.2 mi
B. 7.4 mi
C. 9.0 mi
D. 8.6 mi
Answer: D
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Solve the problem.Translate into the language of a derivative of the number of businesses with respect to time. N is the number of businesses in the downtown district after time t. The number of businesses downtown is decreasing at a slower and slower rate.
A. 
> 0, 
< 0
B. 
< 0, 
= k, k is a constant
C. 
< 0, 
> 0
D. 
< 0, 
< 0
Find 
and 
.f(x, y) = (6x5y3 - 6)2
A. 
= 60x4y3(6x5y3 - 6); 
= 36x5y2(6x5y3 - 6)
B. 
= 30x4y3; 
= 18x5y2
C. 
= 36x5y2(6x5y3 - 6); 
= 60x4y3(6x5y3 - 6)
D. 
= 2(6x5y3 - 6); 
= 2(6x5y3 - 6)
Provide an appropriate response.Find the area of a circle with a radius of 12 cm (round to the nearest hundredth).
What will be an ideal response?
Write the augmented matrix for the system. Do not solve the system. 8x + 5y + 6z = 40 9x + 4y + 3z = 39 4x - 2y + 6z = -10
A. 
B. 
C. 
D. 