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3 years ago

WILL MARK BRAINLIEST IF ANSWERED CORRECTLY!

Mathematics

1 answer:

DanielleElmas [232]3 years ago

6 0

First question:

4(3x-5) + (2x -2)(4 + 3x-5)
Simplify -----> 12x - 20 + (2x-2)(3x-1)
Multiply the second part -----> 12x - 20 + 6x^2 -8x + 2
Combine like terms --------> 6x^2 + 4x - 18

Each side of the addition sign represents one of the rectangles above which is then added to get the area of the entire figure.

Second question:

The average is the summation of each data value divided by the number of data values. So it would be

(4 + 5 + 9)/ 3

Simplify ------> 18/3
Divide --------> 6

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NEED HELP ASAP!!!

balu736 [363]

Answer:

y=2x+5

Step-by-step explanation:

The y-intercept is when x is o so that will be 5.

To find the slope use the slope formula which is the change of y over the change of x. Choose 2 points.

$\frac{y2-y1}{x2-x1}$

$\frac{9-7}{2-1}$ = $\frac{2}{1}$ =2

6 0

3 years ago

Which of the following could be the first step in solving this problem? 9(12-3)+4

Thepotemich [5.8K]

Using P.E.M.D.A.S. ( parentheses exponent multiply divide add subtract ) you would multiply the nine into the parentheses

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4 years ago

Help me.......Please and thanks

Kamila [148]

Like before just put Xs one side and numbers other

6 0

3 years ago

Determine whether the given value is a solution of the equation.

lana66690 [7]

Answer:

Is a solution

Step-by-step explanation:

Just do the division $\frac{52}{13}$

3 0

3 years ago

Read 2 more answers

Subtract one- fifth from seven times w

natulia [17]

We can write one fifth as $\frac{1}{5}$

7 times of w , we can write as = 7w

Now we have to subtract one fifth from seven times of w.

So we can write it in algebraic expression as

$7w - \frac{1}{5}$

8 0

3 years ago