Solve the equation.4(x - 8) = -19 - 5
A. 4
B. -2
C. -4
D. 2
Answer: D
Mathematics
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The length l, width w and height h of a box change with time. At a certain instant the dimensions are l = 3 and w = h = 4, and l and w are increasing at a rate of 10 m/s while decreasing at a rate of 1 m/s. At that instant find the rates at which the surface area is changing.
What will be an ideal response?
Mathematics
Evaluate the expression.
A. 1 B. 0 C. -1 D. -6
Mathematics
Evaluate the integral by using a substitution prior to integration by parts.
A. x 
2 - 2x 
+ C
B. x 
2 - x 
+ x + C
C. x 
2 + 2x 
- 2x + C
D. x 
2 - 2x 
+ 2x + C
Mathematics
Solve the problem.The perimeter of a rectangle is 44 inches and its area is 105 square inches. What are its dimensions?
A. 6 in. by 14 in. B. 6 in. by 16 in. C. 8 in. by 14 in. D. 7 in. by 15 in.
Mathematics