Solve the equation by making an appropriate substitution.x2/3 - 2x1/3 - 8 = 0

A. {-64, 8}
B. {-2, 4}
C. {-4, 2}
D. {-8, 64}


Answer: D

Mathematics

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Use the Gauss-Jordan method to find A-1, if it exists.A = 

A.

B.

C.

D. Does not exist

Mathematics

A man awoke to a temperature of 40°F. By the time he arrived at work, the temperature had increased by 11°F. At lunch he noted the temperature had decreased from the temperature when he arrived at work by 12F. Upon arriving home after work, the temperature had decreased another 13°F. What was the temperature when the man arrived home?

A. 76°F B. 26°F C. 52°F D. 15°F E. 4°F

Mathematics

Graph the parabola and give its vertex, axis, x-intercepts, and y-intercepts.f(x) = x2 - 6x + 8

A. vertex (-3, 1); axis is x = -3;
x-intercepts are -4 and - 2; y-intercept is -8

B. vertex (3, 1); axis is x = 3;
x-intercepts are 4 and 2; y-intercept is -8

C. vertex (3, -1); axis is x = 3;
x-intercepts are 4 and 2; y-intercept is 8

D. vertex (-3, -1); axis is x = -3;
x-intercepts are -4 and - 2; y-intercept is 8

Mathematics

Evaluate the expression for the given value or values.  for x = 290, y = -5

A. -58
B.
C. - 
D. 58

Mathematics