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3 years ago

Which expression is equivalent to - 19 - (- 27)

Mathematics

1 answer:

HACTEHA [7]3 years ago

3 0

Answer:

Step-by-step explanation:

-19 - (-27)

-19 + 27

i dont know if this is what you needed, but um yea lol

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Please help me with this

horrorfan [7]

Answer:

$\dfrac{4000\pi}{3}$ ft³

Step-by-step explanation:

First, let's figure out how to get the volume of a sphere from its surface area. If r is the radius of our sphere, then

The formula for a sphere's surface area is $A = 4\pi r^2$

The formula for a sphere's volume is $V=\frac{4}{3}\pi r^3$

So to get from area to volume, we have to divide the area by 3 and then multiply it by r. Mathematically:

$V=\frac{A}{3}r$

Before we solve for V though, we need to find the radius of our sphere. Thankfully, we're given the surface area - $400\pi$ ft² - so we can use the area formula to find that radius:

$A=4\pi r^2=400\pi\\r^2=100\\r=10$

And now that we have our radius, we can put it into our volume formula to find

$V=\frac{A}{3} r=\frac{400\pi}{3}(10)=\frac{4000\pi}{3}$ ft³

4 0

3 years ago

F(r-2)=6(r-2)+7=6r-12+7

Gre4nikov [31]

Answer: D=22

Step-by-step explanation:

this is because if multiply f by r you get D and then you do all the other rmathematics and you wind up with 22

3 0

3 years ago

Which of the following options have the same value as 8\%8%8, percent of 949494?

mr Goodwill [35]

Answer:

A&D

Step-by-step explanation:

8% of something is the same thing as 8% times that. If we use that, we get the answers A and D

5 0

2 years ago

The formula for the volume of a rectangular prism is lwh What would be a interpretation of that in words. I put the products of

borishaifa [10]

Answer:

the formula for a rectangular prism is length* Height* Width

Step-by-step explanation:

8 0

3 years ago

Which expression is equal to the expression (7•2)^7 a. 9^7 b. 7^7•2^7 c. 7^7 2^7 d. 7•(7•2)

Keith_Richards [23]

$(7\cdot2)^7=7^7\cdot2^7\to\fbox{b.}$

5 0

3 years ago

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Which expression is equivalent to - 19 - (- 27) ​

Which expression is equivalent to - 19 - (- 27)