Factor the polynomial using the negative of the greatest common factor.-18x3y2 + 4x3y - 10x2y
A. -2x2y(9xy + 2x - 5)
B. -2x2y(9xy - 2x + 5)
C. 2x2y(-9xy + 2x - 5)
D. -2xy(9x2y - 2x2 + 5x)
Answer: B
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Find the area enclosed by the given curves.Find the area of the region in the first quadrant bounded on the left by the line y = 
and on the right by the curves y = tan 2 x and y = cot 2 x. (Round to four decimal places.)
A. 4.3094
B. 0.3094
C.
| 0.5858 |
D. 0.4126
A straight road makes an angle, A, of 10° with the horizontal. When the angle of elevation, B, of the sun is , a vertical pole beside the road casts a shadow 6 feet long parallel to the road. Approximate the length of the pole. Round answer to two decimal places.
A) 4.28 feet
B) 1.97 feet
C) 5.26 feet
D) 9.60 feet
E) 8.41 feet
Identify the equation as either an identity or not.sin 2x = 2 sin x
A. Identity B. Not an identity
Solve the equation by making an appropriate substitution.2x1/2 - 3x1/4 - 20 = 0
A. 
B. {-4, -5}
C. {256}
D. 