If xt ≠ 0, then which of the following equations is equivalent to 81x8 – 16t8 = 9x4 + 4t4?

A.9x4 + 4t4 = 0B.(3x2 + 2t2)4 = 0C.(3x2 – 2t2)(3x2 +2t2) = 1D.(3x2 – 2t2)(3x2 +2t2)(​9x4 + 4t4) = 1

02/19/22

How far from the house should you place the base of the ladder?

The proper angle for a ladder is about 75° from the ground. Suppose you have a 8 foot ladder.

02/19/22

i need help with a math question

The function h(x)=1x+6 can be expressed in the form f(g(x)), where g(x)=(x+6), and f(x) is defined as:how do i do this im not good with math

02/19/22

Prove that 1/x+lnx is never less than 1

02/19/22

A normal distribution

A normal distribution hast=80 and sigma=10. What is the probability of randomly selecting a score greater than 90 from this distribution ?

02/19/22

Twice a number decreased by 16

i need it in the algebraic expression

02/19/22

Chapter 5 test 1

At a football game a vendor sold a combined total of 124 sodas and hotdogs the number of soda sold where was three times the number of hotdogs sold find the number of sodas in the number of... more

A freight train travels at 30 mph. If the freight train is 300 miles ahead of an express train traveling at 55 mph, how long will the express train take to overtake the freight train?

Which equation could be used to find the number of miles the trains will travel?30x = 55(x + 300)x÷30 = (x - 300)÷55x÷30 = (x + 300)÷55

02/18/22

What is f(x) given that g(x) =x-1/x+2 and gof(x) =7/x+2?

02/18/22

24 is 4 times as great as k. Solve for k.

02/18/22

Elimination 2 math

-8x-8y=0 and -5x-7y=-12

02/18/22

percent decrease

Over the past year, attendance at local football games has decreased by 21%. If the total attendance for this year is 14,186; then what was the attendance at local football games last year?

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