Find the requested function value.Find (g ? f)(2) when f(x) = -7x + 8 and g(x) = 9x2 + 9x - 7.
A. -115
B. -195
C. -321
D. 263
Answer: D
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Using the addition/subtraction method, find the value of x and y to satisfy the following equations: 5x - 5y = 8; 7x - 5y = 20
a. x = -6 y = -4.4 b. x = 6 y = 4 c. x = 4.4 y = 6 d. x = 6.4 y = 4 e. x = 6 y = 4.4
Solve the problem.A box weighing 77 lb is hanging from the end of a rope. The box is pulled sideways by a horizontal rope with a force of 20 lb. What angle, to the nearest degree, does the first rope make with the vertical?
A. 23° B. 8° C. 15° D. 30°
Add the numbers.
A. 387 B. 567 C. 765 D. 666
Solve the problem.The daily cost C (in dollars) of removing pollution from the smokestack of an electric power plant is related to the percent of pollution p removed according to the equation C = 
. Describe the transformations needed to obtain the graph of this function from the graph of C = 
.
A. Shift 100 units to the left, reflect across either axis,and stretch vertically by a factor of 16,400. B. Shift 100 units to the right and stretch vertically by a factor of 16,400. C. Reflect across the p-axis, shift 100 units to the left and shift up 16,400 units. D. Shift 100 units to the right, reflect across either axis,and stretch vertically by a factor of 16,400.