Provide an appropriate response.Determine the inverse of f(x) =
.
A. f-1(x) = x3 + 49
B. f-1(x) = x3 - 7
C. f-1(x) =
D. f-1(x) = x - 7
Answer: B
Mathematics
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Determine if the equation is an identity.cos(x - y) cos y - sin(x - y) sin y = cos y
A. Not an identity B. Identity
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Find the perimeter.
A. 144 cm B. 147 cm C. 148 cm D. 143 cm
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Evaluate -x for the given value of x.x = -7.4
A. 0
B. -7.4
C. -
D. 7.4
Mathematics
Find the center, foci, and vertices of the ellipse.4x2 + 81y2 = 324
A. center at (0, 0)
foci at (0, -2) and (0, 2)
vertices at (0, -4), (0, 4)
B. center at (0, 0)
foci at (0, - ) and (0,
)
vertices at (0, -9), (0, 9)
C. center at (0, 0)
foci at (-9, 0) and (9, 0)
vertices at (-81, 0), (81, 0)
D. center at (0, 0)
foci at (- , 0) and (
, 0)
vertices at (-9, 0), (9, 0)
Mathematics