Simplify the exponential expression. Write the result using only positive exponents.
2
A. 
B. 
C. 
D. 
Answer: A
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Use a finite sum to estimate the average value of the function on the given interval by partitioning the interval and evaluating the function at the midpoints of the subintervals.f(x) = 7
x on [1, 7] divided into 3 subintervals
A. 588 B. 98 C. 196 D. 392
Solve the problem.At one point the exchange equation for converting American dollars into Japanese yen was Y = 129(d - 4) where d is the number of American dollars, Y is the number of yen, and $4 is a one-time bank fee charged for currency conversions. Use this equation to solve the following problem.Ariel is traveling to Japan for 3 weeks and has been advised to have between 19,000 and 30,000 yen for spending money for each week he is there. Write an inequality that represents the number of American dollars he will need to bring to the bank to exchange money for this 3-week period.
A. $441.89 ? d ? $697.71 B. $445.86 ? d ? $701.67 C. $441.95 ? d ? $697.77 D. $453.86 ? d ? $709.67
Solve.A rectangular sign is being designed so that the length of its base, in feet, is 4 feet less than 4 times the height, h. Express the area of the sign as a function of h.
A. A(h) = -4h2 + 2h B. A(h) = -4h + h2 C. A(h) = -4h + 4h2 D. A(h) = 4h - 2h2
Find the equation of the circle that satisfies the following conditions. Express the final equation in the form x2 + y2 + Dx + Ey + F = 0.Tangent to the x axis, a radius of length 3, and abscissa of center is -7
A. x2 + y2 - 14x - 6y + 49 = 0 and x2 + y2 - 14x + 6y + 49 = 0 B. x2 + y2 + 14x - 6y + 49 = 0 C. x2 + y2 + 14x - 6y + 49 = 0 and x2 + y2 + 14x + 6y + 49 = 0 D. x2 + y2 + 14x + 6y + 49 = 0 E. x2 + y2 - 14x + 6y + 49 = 0