3 years ago

What's the answer to the math problem 8r+4=10+2r

Mathematics

1 answer:

mart [117]3 years ago

6 0

In order to solve for r you have to place all the number in one side. then isolate r ...... r=1

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maxonik [38]

Answer:

$-\frac{28}{3}$

Step-by-step explanation:

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3 years ago

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Hi! Please help, I'd appreciate it!

Romashka-Z-Leto [24]

The volume of sphere is $\frac{1372}{3}\pi$ feet cubed.

Step-by-step explanation:

Given,

Surface area of sphere = 196π square feet

Surface area of sphere = 4πr²

We will find radius of sphere.

$4\pi r^2=196\pi$

Dividing both sides by 4π

$\frac{4\pi r^2}{4\pi}=\frac{196\pi}{4\pi}\\\\r^2=49$

Taking square root on both sides

$\sqrt{r^2}=\sqrt{49}\\r=7$

The radius is 7 feet.

Volume of sphere = $\frac{4}{3}\pi r^3$

$Volume=\frac{4}{3}\pi (7)^3\\\\Volume= \frac{4}{3}\pi *343\\\\Volume = \frac{1372}{3}\pi$

The volume of sphere is $\frac{1372}{3}\pi$ feet cubed.

Keywords: volume, surface area

Learn more about surface area at:

#LearnwithBrainly

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3 years ago

Help help math math math

natka813 [3]

Answer:

Yes, this is a function

Step-by-step explanation:

You know this because it passes the vertical line test.

I hope this helps!

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2 years ago

Simplify the expression (9 + 2i)(9 − 2i). 81 − 18i 81 + 18i 77 85

Ymorist [56]

Answer:

=85

Step-by-step explanation:

I'm pretty sure I'm correct

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3 years ago

Write the percent as a fraction or mixed number in simplest form. 62%

suter [353]

= 62%

= 0.62

= 62/100

= 31/50

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4 years ago

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