Simplify the expression. Assume that all variables represent nonnegative real numbers.
- 4
- 5
A. -17
B. -17
C. 18
x
D. 
- 19
Answer: A
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Find the particular solution that satisfies the given condition.
= x - 3; curve passes through (1, 9)
A. y = x2 - 3x
B. y = 
- 3x + 
C. y = 
- 3x + 
D. y = x2 - 3x + 11
Write the ratio as a fraction in simplest form. ? 14 to 32 ?
A.
B.
C.
D.
E.
Find the vertices and foci of the ellipse.9x2 + 25y2 = 225
A. Vertices: (0, ±5); Foci: (0, ±4) B. Vertices: (0, ±9); Foci: (0, ±5) C. Vertices: (±5, 0); Foci: (±4, 0) D. Vertices: (±9, 0); Foci: (±4, 0)
Solve the problem.The following table gives data on two different solar modules being developed for use in roofing.
You must determine the size of the frame needed to support each panel on a roof. (Note: The sides of each frame will form a right triangle, and the hypotenuse of the triangle will be the width of the panel.) Use the Pythagorean theorem to find the dimensions of the legs for each frame if one leg is twice the length of the other. Round your answers to the nearest tenth when necessary.
A. ABC-01: 12.7 in. by 25.4 in. ABC-02: 8.1 in. by 16.2 in. B. ABC-01: 2.1 in. by 4.2 in. ABC-02: 1.7 in. by 3.3 in. C. ABC-01: 2.7 in. by 5.4 in. ABC-02: 2.2 in. by 4.3 in. D. ABC-01: 9.8 in. by 19.7 in. ABC-02: 6.3 in. by 12.5 in.