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2 years ago

How to do Area of this figure?

Mathematics

1 answer:

stellarik [79]2 years ago

3 0

Answer:

I don't want to do the problem for you but

Step-by-step explanation:

First you have to divide the figure into 2 parts. Then, you find the area of both the rectangles. You will also have to subtract the 8 from 12 which is 4 and after that you can subtract 5 from 18 because in a rectangle the opposite sides are the same. After you do those step you find the area of the rectangles.

Formula: Area= base * height

After you have to add both of the area up.

And that it!!

Hope this helps!! :)

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In monitoring lead in the air after the explosion at the battery factory, it is found that the amounts of lead over a 7 day peri

Andrew [12]

Answer:

$MOE=\pm \ 1.41$

Step-by-step explanation:

-Given that $\sigma=1.91, n=7$

-We determine the z-value corresponding to the 95% confidence level:

$z_{\alpha/2}=z_{0.025}=1.96$

-The margin of error is the degree of error from the real value and is calculated as follows:

$MOE=\pm z_{\alpha/2} (\frac{\sigma}{\sqrt{n}})\\\\=\pm z_{0.025}\times\frac{\sigma}{\sqrt{n}}\\\\=\pm 1.96\times \frac{1.91}{\sqrt{7}}\\\\=\pm 1.41$

Hence, the margin of error is $\pm 1.41$

7 0

3 years ago

What is the slope of the line that passes through the points (-2,-12) and (1,-3)?

Nookie1986 [14]

Answer:

Step-by-step explanation:

Change in Y/Change in X = Slope

8 0

3 years ago

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4x-3=2x+5-3 whats the answer

ivolga24 [154]

The answer is 5/2
$4x - 3 = 2x + 5 - 3 \\ 4x - 2x = 3 + 5 - 3 \\ 2x = 5 \\ x = \frac{5}{2}$

good luck

3 0

2 years ago

Read 2 more answers

the area of a rectangular window is 6216 cm^2. if the length of the window is 84 cm, what is it's width?

Rus_ich [418]

Answer:

<h3>The answer is 74 cm</h3>

Step-by-step explanation:

The area of a rectangle = length × width

Since we are finding the width

We have

$width = \frac{area}{length} \\$

From the question

area = 6216 cm²

length = 84 cm

The width is

$width = \frac{6216}{84} \\$

We have the final answer as

Hope this helps you

3 0

3 years ago

What is the exact circumference of a circle with a radius of 12 inches?

Anestetic [448]

We can get the circumference of any circle in terms of the radius with this formula. C = 2 $\pi$ r.

Where r is the radius of the circle.

And we will use 3.14 for $\pi$ .

Plug in all the values.

C = 2 * 3.14 * 2

C = 12.56

So, the circumference of the circle is 12.6 inches when rounded to the nearest tenth.

8 0

2 years ago

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