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2 years ago

5

I'll mark brainliest

1 answer:

padilas [110]2 years ago

5 0

Answer:

it's the first one I think

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Simplify the expression 5(n^2+n)-3n(2n^2+4n-2)

slega [8]

first, lets distribute the equation. 5(n^2+n)-3n(2n^2+4n-2) would become

5n^2 +5n -6n^3 -12n^2 +6n

Now we add the like terms.

-6n^3 - 7n^2 +11n

8 0

2 years ago

The base of a parallelogram is 8 units, and the height is 5 units. A segment divides the parallelogram into two identical trapez

Zigmanuir [339]

So it is a line of symmetry. 8x5=40 so the area of one is 40.

6 0

3 years ago

Read 2 more answers

16y=14+9y please answer 23 points

NeTakaya

Answer:

<h2>y = 2</h2>

Step-by-step explanation:

$16y=14+9y\qquad\text{subtract}\ 9y\ \text{from both sides}\\\\16y-9y=14+9y-9y\\\\7y=14\qquad\text{divide both sides by 7}\\\\\dfrac{7y}{7}=\dfrac{14}{7}\\\\y=2$

4 0

3 years ago

31.8 dived 0.58 answer

Charra [1.4K]

Answer:

54.8275862069

Step-by-step explanation:

If you want rounded than 54

5 0

2 years ago

What is the y-coordinate of the solution for the system of equations? x−y=−11 y+7=−2x

ICE Princess25 [194]

Answer:

$y= 5$

Step-by-step explanation:

Given the system of equations:

$x-y=-11$

$y+7=-2x$

In order to find the y coordinate of the solution we must first find the solution to this system of equations. We first start by solving one of the given equations and then substitute the answer of that into the second equation and further solve to get the final answers.

$x=y=-11$

$y+7=-2x$

$y+7=-2x$

$+ -7$

$y = -2x - 7$

$x - y = -11$

$y = -2x-7$

$x-(-2x-7)=-11$

$x--2x=x+2x=3x$

$3x+7=-11$

$-7$

$-11+-7=-18$

$3x=-18$

$\div3$

$-18\div3=-6$

$x=-6$

$y=-2x-7$

$y=(-2)(-6)-7$

$-2\times-6=12-7=5$

$y=5$

Hope this helps.

7 0

1 year ago