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2 years ago

Help me please.

Mathematics

2 answers:

kupik [55]2 years ago

4 0

Answer:

I think it's 20%

Step-by-step explanation:

16 is 80% of 20.

Lemur [1.5K]2 years ago

4 0

The percent error would be 25% i used a percent error calculator to find the answer hope
this helps

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What is the sum of 3/x + 4/x2

trasher [3.6K]

Answer:(3x+4)/x^2

Step-by-step explanation:

3/x+4/x^2

(3x +4) ➗ x^2=(3x+4)/x^2

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3 years ago

Find the missing side length

Nezavi [6.7K]

17^2 - 15^2
= 289 - 225
= 64

missing side = √64 = 8

answer
A. 8

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4 years ago

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I have F's in some of my classes ( Math and ELA ) What are some ways I can improve my grades?

Bas_tet [7]

Answer:

Do practice problems and check your answers, watch helpful videos (without getting sidetracked), and ask the teacher for help. You're only helping yourself.

Step-by-step explanation:

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3 years ago

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An egg of a particular bird is very nearly spherical. The radius to the inside of the shell is 4 millimeters and the radius to t

igomit [66]

Answer: The volume of shell is 12.8π mm².

Step-by-step explanation:

Since we have given that

Radius to the inside of the shell = 4 milimeters

Radius to the outside of the shell = 4.2 milimeters

Since r changes from 4 mm to 4.2 mm

so, $dr=4.2-4=0.2\ mm$

As we know that

Volume of shell is given by

$\dfrac{4}{3}\pi r^3$

$dv=\dfrac{4}{3}\pi 3r^2\ dr\\\\dv=4r^2\pi\ dr\\\\dv=4(16)\times 0.2\pi\\\\dv=12.8\pi$

So, the volume of shell is 12.8π mm².

4 0

4 years ago

Is (3, 9) a solution of the system y = 3x and 2x – y = 6?

otez555 [7]

Answer:

No, (3, 9) is not a solution of the system.

Step-by-step explanation:

y=3x

2x-y=6

-----------

3(3)=9

2(3)-9=6-9=-3, not 6

5 0

3 years ago