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3 years ago

Can someone tell me the answer and explanation I’ll give you a brain list and points Plz I’m confused

Mathematics

1 answer:

snow_lady [41]3 years ago

5 0

Answer:

its input and output there is a sight that will tell you how to do it all just type it in to google.

Step-by-step explanation:

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Work our the surface area of this cylinder?

tankabanditka [31]

Answer:

$A=522.97\ \text{cm}^2$

Step-by-step explanation:

Given that,

The diameter of the cylinder, d = 8 cm

Radius, r = 4 cm

Height of the cylinder, h = 16.8 cm

We need to find the surface area of this cylinder. The formula for the surface area of the cylinder is given by :

$A=2\pi r^2+2\pi rh\\\\=2\pi r(r+h)\\\\=2\times \dfrac{22}{7}\times 4\times (4+16.8)\\\\=522.97\ \text{cm}^2$

So, the surface area of the cylinder is $522.97\ \text{cm}^2$

6 0

3 years ago

Ahmad drove 638 miles in 11 hours. At the same rate, how long would it take him to drive 522 miles?

ikadub [295]

It would take him 9 hours to drive 522 miles since if you divide 638 with 11 you would get 58 and if you divide 522 with 58 you'll get 9.

8 0

3 years ago

Read 2 more answers

What is the value of x?

Romashka-Z-Leto [24]

Answer:

x=5√2

Step-by-step explanation:

This is a right isosceles triangle, so the base and leg are the same. Both are x.

Pythagorean Theorem:

x²+x²=10²

2x²=100

x²=50

x=√50

x=5√2

7 0

3 years ago

Will a polynomial times a polynomial always equal a polynomial?

Leviafan [203]

Correct. you are a star today your awesome

4 0

3 years ago

Read 2 more answers

If AD is the altitude to BC, what is the slope of AD?

anygoal [31]

Answer:

Option (C)

Step-by-step explanation:

If AD is the altitude to BC, both the segments AD and BC will be perpendicular to each other.

By the property of perpendicular lines,

$m_1\times m_2=-1$

where $m_1$ is the slope of the line AD and $m_2$ is the slope of BC.

$m_2=\frac{y_2-y_1}{x_2-x_1}$

$=\frac{8+2}{3-7}$

$=-\frac{5}{2}$

Now from the given property,

$m_1\times (-\frac{2}{5})=-1$

$m_1=\frac{5}{2}$

Therefore, slope of altitude BC = $\frac{5}{2}$

Option (C) will be the answer.

3 0

4 years ago