Solve.If a rectangle has length l and width w, then it has an area of l?w square units. Find the area of a 38 by 33 rectangle.
A. 142 square units
B. 38 square units
C. 1254 square units
D. 33 square units
Answer: C
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Solve the initial value problem.y'(t) + 7y = 3, y(0) = 1
A. y = 
e7t + 
B. y = 
e-7t + 
C. y = 
e7t + 
D. y = 
e-7t + 
Find the distance between the pair of points. Where appropriate, give an approximation to three decimal places.(-2.8, 4.3) and (2.2, 16.3)
A. 13
B. 
C. 169
D. 17
The marginal cost function C' (x) is defined to be the derivative of the cost function. If the marginal cost of manufacturing x units of a product is
(measured in dollars per unit) and the fixed start-up cost is C(0) = 1,800,000, use the Total Change theorem to find the cost of productin the first 5,000 units.
Solve the problem.A circular fountain has a statue in its center, 8 m from the edge. What is the distance around the fountain?(Use 3.14 for ? .)
A. 50.24 m B. 25.12 m C. 48.24 m D. 64 m