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3 years ago

Draw two possible rectangles for a perimeter of 8 units

Mathematics

2 answers:

Kitty [74]3 years ago

7 0

All four side being 2 units (2+2+2+2=8)

or

2 sides being 1 and the other 2 side being 3 (1+1+3+3=8)

Darina [25.2K]3 years ago

7 0

When you draw it 1 rectangle each side is 1 centimeter or inch depends on what youre measuring it in.

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Pretend that you can have 100 of any one thing. What would you choose?why?

Shkiper50 [21]

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What ratio is equivalent to the ratio 14:7 A 1:7 B2:7 C2:1

svp [43]

Answer:

c 2:1

Step-by-step explanation:

If you simplify 14:7 it is 2:1 (divide by 7)

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NARA [144]

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3 years ago

Chelsea makes $9.00 an hour working at Chick-Fil-A. She plans to buy some music for her phone and Air Pods that cost $278.10. Wr

Talja [164]

Answer:

31 hours

Step-by-step explanation:

To at least buy the Air-Pods she will need to work at least 31 hours. You can either round at the beginning or end, I'll demonstrate rounding at the end. Divide $278.10 by $9.00, getting 30.9. You would have to round up to insure you have enough money, getting 31 hours

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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:

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

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

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3 years ago