Find approximate x-intercepts. Round the coordinates to the nearest tenth if necessary.y = x2 - 5x + 1
A. (-4.8, 0), (-0.2, 0)
B. (4.8, 0), (0.2, 0)
C. (-4.8, 0), (0.2, 0)
D. (4.8, 0), (-0.2, 0)
Answer: B
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Find the gradient field F of the function f.f(x, y, z) = ln (x4 + y7 + z7)
A. F = 
ln ( y7 + z7)i + 
ln (x4 + z7)j + 
ln ( x4 + y7)k
B. F = 
i + 
j + 
k
C. F = 
i + 
j + 
k
D. F = 
i + 
j + 
k
Solve using the quadratic formula. Use a calculator to approximate the solution to three decimal places.0.1x2 - 0.2x - 0.2 = 0
A. 2.732 B. 0.268 C. -0.732, 2.732 D. 0.268, 3.732
Find the surface area of the circular solid. Unless otherwise specified, use 3.14 for ? and round your answer to the nearest tenth.A sphere with d = 6.4 yd
A. 6.4 yd2 B. 137.2 yd2 C. 128.8 yd2 D. 32.2 yd2
Solve the trigonometric equation symbolically, graphically, or numerically for 
2 cos2 ? - cos ? = 0
A. ? = 30°, 90°, 270°, 330° B. ? = 60°, 90°, 270°, 300° C. ? = 0°, 60°, 180°, 300° D. ? = 0°, 180°