Solve the problem by integration.Find the x-coordinate of the centroid of the first-quadrant area bounded by 
and 
A. -2.884
B. -1.442
C. 0.685
D. 1.369
Answer: D
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Use a power regression model for the following data to answer the following question. If x is increased by 37%, what is the effect on y? x 1 3 4 7 8 y 13.11 3.36 2.19 1.04 1.22?
A. y is increased by 31.68%. B. y is increased by 4.33%. C. y is decreased by 4.33%. D. y is decreased by 31.68%.
Provide an appropriate response. Write the equation in standard order and identify the values that represent a, b, and c: 2x2 = Bx + r2
A. 2x2 - Bx - r2 = 0; a = 2, b = 1, c = - r2 B. 2x2 - Bx - r2 ; a = 2, b = B, c = - r2 C. 2x2 - Bx - r2 = 0; a = 2x2, b = Bx, c = - r2 D. 2x2 - Bx - r2 = 0; a = 2, b = -B, c = - r2
Find the value of the indicated trigonometric function of the angle ? in the figure. Give an exact answer with a rational denominator.
Find sec ?.
A. 
B. 
C. 
D. 
Find the mean. If necessary, round to one decimal place.16, 11, 6, 13, 5, 3, 6
A. 8.1 B. 10 C. 10.1 D. 8.6