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jolli1 [7]
3 years ago
7

HELP ME PLEASE RNNN FASTTT

Mathematics
1 answer:
timama [110]3 years ago
6 0

Answer:

The first three are functions

Step-by-step explanation:

4th one fails the Vertical line test.

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Answer:

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2 years ago
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A rectangle has a length that is 4 units longer than the width. If the width is increased by 7 units and the length increased by
Savatey [412]

Answer:

A = (x + 7)(x + 9)

Step-by-step explanation:

Let the width w = x

then length l = w + 4 = x + 4

Area =  length x width

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Then the the width is increased by 7 units and the length increased by 5 units.

w = x + 7

l = (x + 4) + 5 =x + 9

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3 years ago
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The linear equation is y = 4x - 4

And the graph of the linear equation can be seen in the image below.

<h3>How to graph the last line?</h3>

It seems that you already are good at graphing, so I will try to explain how to find the equation more in detail.

Remember that a general linear equation is written as:

y = a*x + b

Where a is the slope and b is the y-intercept.

In this case, we know that the y-intercept is -4, then b = -4, replacing that we get:

y = a*x - 4

Now we also can see that this line passes through the point (2, 4), this means that if we evaluate in x = 2, the outcome should be y = 4, replacing that we get:

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4 + 4 = a*2

8 = a*2

8/2 = a = 4

Then the slope is 4, and the linear equation is:

y = 4x - 4

The graph is below.

If you want to learn more about linear functions:

brainly.com/question/4025726

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1 year ago
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Angelina_Jolie [31]
Tan80=5.67
2tan70+tan10=5.67

So tan80=2tan70+tan10
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Answer:

1. A

2. C

Step-by-step explanation:

If they are corresponding, so their angle measures are the same. Hope this helps. :)

5 0
2 years ago
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