Solve the equation and check the solution.5x + 14 = 6x
A. x = 5
B. x = -14
C. x = 14
D. x = 3
Answer: C
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Solve.For a hyperbolic mirror the two foci are 44 cm apart. The distance of the vertex from one focus is 10 cm and from the other focus is 34 cm. Position a coordinate system with the origin at the center of the hyperbola and with the foci on the y-axis. Find the equation of the hyperbola.
A. -
= 1
B. -
= 5
C. -
= 5
D. -
= 1
A function f(x), a point x0, the limit of f(x) as x approaches x0, and a positive number ? is given. Find a number such that for all x, 0 <
< ? ?
< ?.f(x) = -2x - 5, L = -9, x0 = 2, and ? = 0.01
A. -0.005 B. 0.0025 C. 0.01 D. 0.005
Find the vertex.f(x) = 3x2 + 12x + 13
A. (2, -1) B. (-1, 2) C. (-2, 1) D. (1, -2)
Solve the problem.In a two-card hand, what is the probability of holding only hearts?
A.
B.
C.
D.