Express the function in terms of x.If f(u) = u4/3 and u = x7 - 3, then express  u1/3 ? 7x6 in terms of x alone.

A. 6
B. x6
C. x6
D.


Answer: B

Mathematics

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Solve the problem.In one area, the lowest angle of elevation of the sun in winter is 24° 8'. A fence is to be built  away from a plant in the direction of the sun. (See drawing) Find the maximum height, x , for the fence so that the plant will get full sun. Round your answer to the tenths place when necessary. 

A. 6.5 ft B. 4.3 ft C. 5 ft D. 5.3 ft

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Solve the system of equations using elimination. 

A.
B.
C. infinitely many solutions
D. no solution

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Find the measure of the unknown angles. Figures are not drawn to scale.m  nFind the measure of ?e.

A. 21° B. 31° C. 59° D. 121°

Mathematics