Simplify the expression. Write the answer with only positive exponents. Assume that all variables represent positive real numbers.
A. 224/5x
B. 226/5x
C. 
D. 
Answer: B
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Solve the system of equations.
A. {(x, y, z) 
}
B. ?
C. (3, 2, 10)
D. (2, 3, 11)
In two right triangles, if two pairs of sides and one pair of angles are congruent then
(a) The triangles are congruent by the Pythagorean Theorem and HL. (b) The triangles are congruent by HL. (c) The triangles are congruent by SSS. (d) Both (a) and (c) are correct. (e) There is not enough information to tell if the triangles are congruent.
Solve the problem.A field microphone used at a soccer game has a parabolic cross section and is 28 in. wide at the opening. The focus is 25 in. from the vertex. Find the depth of the microphone.
A. 1.96 in. B. 7.84 in. C. 31.36 in. D. 0.87 in.
Find an equation for the line tangent to given curve at the given value of x.y = x2 - 2; x = -4
A. y = -4x - 18 B. y = -8x - 18 C. y = -8x - 34 D. y = -8x - 36