Use a differential to approximate 
.
?
Hint: Let 
and compute dy with x = 4 and dx = 0.02 .
?
A. 2.83477
B. 2.57789
C. 1.83793
D. 2.50375
Answer: D
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Multiply using Napier's bones.25 × 225
A. 5625 B. 5650 C. 5600 D. 11,250
Solve the problem.The grade resistance F of a car traveling up or down a hill is modeled by the equation F = W sin ?, where W is the weight of the car and ? is the angle of the hill's grade (? > 0 for uphill travel, ? < 0 for downhill travel). What is the grade resistance (to the nearest pound) of a 2100-lb car traveling downhill on a 5° grade (? = -5°)?
A. 183 lb B. -2105 lb C. 2105 lb D. -183 lb
Perform the indicated row operations on the given matrix.
A. 
B. 
C. 
D. 
Solve.The total profit function P(x) for a company producing x thousand units is given by 
Find the values of x for which the company makes a profit. [Hint: The company makes a profit when 
A. x is greater than 2 thousand units B. x is less than 15 thousand units C. x is less than 2 thousand units or greater than 15 thousand units D. x is between 2 thousand units and 15 thousand units