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3 years ago

Help please!! asap!!

Mathematics

1 answer:

Llana [10]3 years ago

3 0

Answer: 1. 2 2. 4 3. 9

Step-by-step explanation: Hi there!

First, we need to set up our equation by combining like terms.

x+2x+4x+1=15

7x+1=15

Then subtract 1 on both sides

7x=14

Then divide by 7

x=2

So x=2

Put that into all of the x values on the piece of steel to get 2, 4, 9.

Hope this answer helps you!

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<u>x-intercept</u>

To find the x-intercept(s), substitute in $0$ for $y$ and solve for $x$ .

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$=\bold{0}=x^3-8x^2+17x-10.5\left(x-5\right)$

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