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3 years ago

6

7x - 4 = 24 show your work

2 answers:

Debora [2.8K]3 years ago

4 0

Move -4 to the other side
7x=24+4
7x=28
x=4

Charra [1.4K]3 years ago

3 0

Answer: x = 4

Explanation: so 7 times what equals 28? 4 right? Then you subtract 28 by 4 and you get 24.

So there’s your answer, answer is 4.

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Answer:

$x=0$

Step-by-step explanation:

We have been given that a polynomial function $f(x)=3x^{5}-2x^{2}+7x$ models the motion of a roller coaster. Every root of the polynomial represent when the roller coaster is at the ground level.

In order to find all the potential values of x when roller coaster is at the ground level, we find the zeroes of the polynomial by factoring it as shown below:

$f(x)=3x^{5}-2x^{2}+7x\\f(x)=x(3x^{4}-2x+7)\\$

The zeroes of this polynomial occur when either $x=0$ or $3x^{4}-2x+7=0$ .

The equation $3x^{4}-2x+7=0$ have no real solutions. Therefore, the only time when the roller coaster is at the ground is at $x=0$

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slamgirl [31]

Answer:

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Step-by-step explanation:

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