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2 years ago

8

Y= 9x -9 y= 9 substitution method

1 answer:

Aneli [31]2 years ago

3 0

You would plug in the y=9 into the first equation and then have the expression 9=9x-9
. After going through the first steps of solving an expression you would get 18=9x. X=2. Then you would plug in the x value into the first expression to get y=9.

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Pls help (kinda easy)

3241004551 [841]

Answer:

$f(x)=(2x+1)(2x-1)$ .

Step-by-step explanation:

We want to convert the function into the form that let's us easily find the x-intercept, and it would be for the form $(ax+b)(cx+d)$ because then we can find the x-intercept in the following manner:

$(ax+b)(cx+d)=0$

$x=-b/a$

$x=-d/c$

We factor our function $f(x)=4x^2-1$ and get

$\boxed{f(x)=(2x+1)(2x-1)}$

Now this form let's us easily find the x-intercepts:

$x=-1/2$

$x=1/2$

and so we pick the second choice: f(x)=(2x+1)(2x-1).

5 0

3 years ago

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35.5 feet long 7.25 feet wide 7.5 feet tall approx volume of the tank

Mumz [18]

wouldn't you multiply all three?

3 0

3 years ago

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4 2/9 as a decimal work shown

Xelga [282]

The Answer Is:<span>4.222222</span>

4 2/9 = 4 + 2/9

= 4/1 + 2/9

= (4/1 * 9/9) + 2/9

= 36/9 + 2/9

= 38/9

= 38 ÷ 9 = 4.222222

4 0

2 years ago

ANSWER NEEDED QUICKLY, RIGHT ANSWER WILL RECEIVE BRAINLIEST ♦️

Oksi-84 [34.3K]

111km

the ratio is 1:15 so you do 7.4×15

7 0

3 years ago

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Classify the following triangle. Check all that apply.60"30A. scaleneB. isoscelesC, equilateralD, rightE. obtuseF. acute

borishaifa [10]

That's a scalene right triangle.

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3 years ago

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