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lawyer [7]
3 years ago
8

Please help me because I’m dying literally dying

Mathematics
2 answers:
guajiro [1.7K]3 years ago
8 0
Bh - volume of triangular prism
2πr²+2πrh - total surface area of cylinder
πr² - area of circle
2l+2w - area of rectangle.

you literally need to study this. because this is nothing in math (yet everything)
nevsk [136]3 years ago
6 0

perimeter or rectangle= 2l+2w

Surface area of a cylinder=2(pi)r^2+2(pi)r

Volume of a triangular prism=Bh

Area of a circle=(pi)r^2

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kati45 [8]
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5 0
3 years ago
Read 2 more answers
What is 314.16 rounded to the nearest hundredth
Galina-37 [17]

Since there is no number in the thousandths place which would make the number in the hundredths place round up or down, we keep the number the same:

314.16

Hope it helps! Good luck. :)

4 0
2 years ago
Find the length of the radius of the following circle. (x + 2)2 + y2 = 10 5 √(10) 100
Makovka662 [10]

<span>For this case we have the following equation:</span>

<span> (x + 2) 2 + y2 = 10</span>

<span> We must remember that the standard equation of the circle is given by:</span>

<span> (x - h) 2 + (y - k) 2 = r2</span>

<span> Where r is the radius.</span>

<span> Therefore, in the given equation the radius is:</span>

<span> r ^ 2 = 10</span>

<span> Clearing we have:</span>

<span> R = root (10)</span>

<span> Answer:</span>

<span> The length of the radius of the circle is:</span>

<span><span> √ (10)</span></span>

5 0
3 years ago
Read 2 more answers
4. Which of the following lines is perpendicular to y = -2X + 8?
Alenkinab [10]

For this case we have to by definition, if two lines are perpendicular then the product of its slopes is -1.

That is to say:

m_ {1} * m_ {2} = - 1

We have the following equation:

y = -2x + 8

So:

m_ {1} = - 2

Thus:

m_ {2} = \frac {-1} {m_ {1}}\\m_ {2} = \frac {-1} {- 2}\\m = \frac {1}{2}

Thus, a line perpendicular to the given line must have slope m = \frac {1} {2}.

Option A:

x + 2y = 8\\2y = -x + 8\\y = - \frac {1} {2} x + 4

It is not perpendicular!

Option B:

x-2y = 6\\2y = x-6\\y = \frac {1} {2} x-3

If it is perpendicular!

Option C:

2x + y = 4\\y = -2x + 4

It is not perpendicular!

Option D:

2x-y = 1\\y = 2x-1

It is not perpendicular!

The correct option is option B

ANswer:

Option B

5 0
3 years ago
What is the slope of the line y=5-4x ?<br>Show your work
garri49 [273]

Answer:

-4

Step-by-step explanation:

The equation is in slope-intercept format, y=mx+b. The coefficient in front of the x is the slope as represented by the letter m.

5 0
3 years ago
Read 2 more answers
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