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UNO [17]
3 years ago
5

ANSWER THIS QUESTION FOR 10 POINTS AND BRAINLEST

Mathematics
2 answers:
JulijaS [17]3 years ago
5 0

Answer:

ABC

Step-by-step explanation:

Elanso [62]3 years ago
4 0
The answer is going to be ABC
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5. If the covariance between the variables x and y is 18 and the variance
klasskru [66]

Answer:

The coefficient of  correlation=0.5

Step-by-step explanation:

We are given that

Covariance between the variable  x and y=18

Variance of x=16

Variance of y=81

We have to find the coefficient of correlation

We know that

Coefficient of correlation

r=\frac{covariance(x,y)}{\sqrt{variance(x)}\times \sqrt{variance(y)}}

Using the formula

r=\frac{18}{\sqrt{16}\times \sqrt{81}}

r=\frac{18}{4\times 9}

r=0.5

Hence, the coefficient of  correlation=0.5

5 0
3 years ago
Anybody have a real answer??
Elena-2011 [213]
I think Its 66 cm. Hope This Helped! Good Luck...
5 0
3 years ago
Solve for x:
777dan777 [17]

Answer:


Step-by-step explanation:

x^2+120=0 can be rewritten as x^2 = - 120.  Taking the square root of both sides, we get x = plus or minus i*√120 = plus or minus i*√4√30, or

x = plus or minus i*2√30

So the correct answer choice here is "None of the above."

6 0
3 years ago
Math word problem,<br> thank you
ivanzaharov [21]

Answer:

$81.92

Step-by-step explanation:

Week 1:

250 * 20% = 50

250 - 50 = 200

Week 2:

200 * 20% = 40

200 - 40 = 160

Week 3:

160 * 20% = 32

160 - 32 = 128

Week 4:

128 * 20% = 25.6

128 - 25.6 = 102.4

Week 5:

102.4 * 20% = 20.48

102.4 - 20.48 = 81.92

7 0
3 years ago
Hey can someone make me a fake email pls i know it is not math but pls 20 points
Marat540 [252]

Answer:

A fake email... sorry, I don't get it... However, my answer will update if you explain what do you mean by fake email

Step-by-step explanation:

New Update in answer at 6:39pm Central Chicago Time:

I can however give you some instructions how to create your own email :D

New Update in answer at 6:41pm Central Chicago Time:

First, click on your profile. Next, click on add account. Then, You click on use another account. Then, on the bottom of the sign in, you will see an option to create an account. :D

3 0
3 years ago
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