Can someone plz answer this

Mathematics

2 answers:

podryga [215]3 years ago

3 0

Divide 20xy^2 - 36y by 5xy - 9. I got the quotient 4y.

Check this by mult. 5xy - 9 by 4y.

Virty [35]3 years ago

3 0

They are asking you to factor this polynomial. So, if you want to turn 20xy(squared)-36y so that it is represented in distributive property, you answer is going to be 4y, because 20xy(squared)-36y=4y(5xy-9). You can even use the distributive property to check the answer, 4y.

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If Gabriel takes a 25 question multiple choice test and receives a score of 52%, how many questions did he answer correctly

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Step-by-step explanation:

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1 year ago

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3 years ago

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: