Find the x-intercepts of the graph of the function.f(x) = 2x + 7
- 15
A. (2.25, 0); (-25, 0)
B. (1.5, 0); (-5, 0)
C. (2.25, 0)
D. (1.5, 0)
Answer: C
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Verify that the curve r(t) lies on the surface. Give the name of the surface.r(t) = (2t cos t)i + (2t sin t)j + 2t k; x2 + y2 = z2
A. 4t2cos2t + 4t2sin2t = 4t2; hyperboloid B. 4t2cos2t + 4t2sin2t = 4t2; ellipsoid C. 4t2cos2t + 4t2sin2t = 4t2; paraboloid D. 4t2cos2t + 4t2sin2t = 4t2; elliptic cone
Perform the operations indicated. Write your answer in simplest form.-11 - (-9)
A. 20 B. 2 C. -20 D. -2
Solve the problem.A wheel is rotating at 2 radians/sec, and the wheel has a 47-inch diameter. To the nearest foot, what is the speed of a point on the rim in ft/min?
A. 225 ft/min B. 240 ft/min C. 235 ft/min D. 230 ft/min
Write the ratio or rate in simplest form.27 to 18
A. 
B. 
C. 
D. 