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Ymorist [56]
4 years ago
9

Help me please asap!!!!!!

Mathematics
1 answer:
meriva4 years ago
8 0

Answer:

4a^2-19ab-5b^2

Step-by-step explanation:

What you do is the FOIL process.

F=First. The first thing that you do is times 4a and a together to get 4a^2.

O=Outer. You multiply the outer numbers 4a and -5b together to get -20ab.

I=Inner. You multiply the inner numbers b and a together to get ab.

L=Last. You multiply the last numbers b and -5b together to get -5b^2.

Put it all together to get 4a^2-19ab-5b^2 as your answer.

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Express in the form n : 1 . Give n as a decimal. 6 : 8
Rzqust [24]

Step-by-step explanation:

1.n:1

6:8

2.cross multiply

3.8×n÷6×1

8n=6

4 divide both side by 6

=8n÷6=6÷6 :

=8n÷6=1.33...

therefore n=1.33...

6 0
3 years ago
If a function has two points with the same y value what is the average rate of change between them
defon
“Average rate of change” is the fancy way to say “slope.”

Sketch a graph and put two points with the same y-value, say (2,5) and (7,5).

How much rise is there between those two points? Since they have the same y-value there is no rise at all. You have a horizontal line.

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3 years ago
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7nadin3 [17]
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7 0
3 years ago
What is the nearist integer to the x-corrdinate of the vertex of the function<br> f(x)=2x^2-7x+3
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The x for vertex
\frac{ - b}{2a}  =  \frac{7}{4}  = 1.75
4 0
4 years ago
PLEASE HELP AND I NEED IT EXPLAINED IT TO ME ALSO..THANK YOU​
Mekhanik [1.2K]

The sum of the inside angles of a 5 sided figure needs to equal 540 degrees.

Add all the angles together to equal 540 and solve for x. Once you have the value for x you can use that to figure out all the angles.

X-8 + 3x-11 + x + 8 + 2x + 7 + x = 540

Simplify by combing like terms:

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Add 4 to both sides:

8x = 544

Divide both sides by 8:

X = 68

Now replace x with 68 in each angle and solve:

U = 68-8 = 60

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W = 68 + 8 = 76

Y = 68

Z = 2(68) + 7 = 136 + 7 = 143

3 0
3 years ago
Read 2 more answers
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