3 years ago

hi, I got assigned stupid khan academy as homework and if I don’t get 900 points I’m screwed. Can anybody help please?

Mathematics

1 answer:

Roman55 [17]3 years ago

6 0

Answer:

A.)z+y+x

Step-by-step explanation:

Addition (+) is a commutative operator.

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Answer:

Step-by-step explanation:

1₦ = 100 k

₦9.90 =?

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O=6+x-24<br> Slope intercept form

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Step-by-step explanation:

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3 years ago

Here are two sets of numbers, a and b. Set a :200,104,100,160. Set b: 270,400,483,300, x. Mean of set a: mean of set b= 3:8. Wor

LenKa [72]

Given:

The given sets are:

Set a : 200, 104, 100, 160.

Set b: 270, 400, 483, 300, x.

Mean of set a: mean of set b= 3:8

To find:

The value of x.

Solution:

Formula for mean:

$Mean=\dfrac{\text{Sum of observations}}{\text{Number of observation}}$

The mean of set of a is:

$Mean=\dfrac{200+104+100+160}{4}$

$Mean=\dfrac{564}{4}$

$Mean=141$

The mean of set of b is:

$Mean=\dfrac{270+400+483+300+x}{5}$

$Mean=\dfrac{1453+x}{5}$

It is given that,

Mean of set a: mean of set b= 3:8

$\dfrac{141}{\dfrac{1453+x}{5}}=\dfrac{3}{8}$

$\dfrac{705}{1453+x}=\dfrac{3}{8}$

$8\times 705=3\times (1453+x)$

$5640=4359
+3x$

Isolate the variable x.

$5640-4359
=3x$

$1281
=3x$

Divide both sides by 3.

$\dfrac{1281}{3}
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$427
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Therefore, the value of x is 427.

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2 years ago

What a circumference of a circle that's radius is 22

Advocard [28]

Circumference formula is 2pir so 2(3.14)(22) is 138.16

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3 years ago

HeLP WiLL gIve BranIliEST

mario62 [17]

I tried just give it to me anyway

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1 year ago

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