Find an equation of the hyperbola.Vertices at (2, 0), (-2, 0); foci at (4, 0), (-4, 0)

A.  -  = 1
B.  -  = 1
C.  -  = 1
D.  -  = 1


Answer: B

Mathematics

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Solve the quadratic equation by factoring.5x2 - 25x + 30 = 0

A. 2, 3 B. -2, -3 C. 5, 2, 3 D. 0, 2, 3

Mathematics

Solve.Integrate  by multiplying the numerator and denominator by 1 + cos x.

A. tan x - csc x + C
B. cot x - sec x + C
C. - cot x -  + C
D. - cot x - csc x + C

Mathematics

Solve the application and write a sentence answering the question.During one year, the Cheung's real estate bill included $229 for county services. Of this amount, $45 went to the highway department. What percent did the county highway department receive? Round your answer to two decimal places.

A. The county highway department received 19.65% of the bill. B. The county highway department received 19.21% of the bill. C. The county highway department received 80.35% of the bill. D. The county highway department received 18.40% of the bill.

Mathematics

The lists below show five agricultural crops in Alabama, Arkansas, and Louisiana.AlabamaArkansasLouisianasoybeans (s)soybeans (s)soybeans (s) peanuts (p)rice (r)sugarcane (n)corn (c)cotton (t)rice (r)hay (h)hay (h)corn (c)wheat (w)wheat (w)cotton (t)Let U be the smallest possible set that includes all of the crops listed; and let A, K, and L be the sets of five crops in Alabama, Arkansas, and Louisiana, respectively. Find the indicated set.L' ? K'

A. {r, s, t} B. {p} C. {c, h, n, p, w} D. {c, h, p, s, w}

Mathematics