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Temka [501]
3 years ago
9

Ben orders a case of his favorite macaroni and cheese. The case contains 18 same-

Mathematics
1 answer:
sergij07 [2.7K]3 years ago
5 0

The answer is 0.4 ( 18x = 7.2 = x = 0.4 )

:) :) :) :) :) :) :)

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What is the solution to the inequality x(x - 3) > 0?
Nimfa-mama [501]

Answer:

D) x<0 or x>3

Step-by-step explanation:

x(x-3)>0

either x>0 and x-3>0      .... positive-positive=positive   so x>3

or x<0 and x-3<0    ..... negative-negative=positive  so x<0

if x=0 then x(x-3)=0

4 0
2 years ago
Which of the choices below is not a possible correlation coefficient?
fiasKO [112]

Answer:

The condition for r is the following:

-1 \leq r \leq 1

And for this case if we analyze the options the only impossible value is given by:

1.0528

Because this value is higher than 1 and not satisfy the general limits for r

Step-by-step explanation:

The correlation coefficient is a measure of dispersion and is a value between -1 and 1, and is defined as:

r=\frac{n(\sum xy)-(\sum x)(\sum y)}{\sqrt{[n\sum x^2 -(\sum x)^2][n\sum y^2 -(\sum y)^2]}}

The condition for r is the following:

-1 \leq r \leq 1

And for this case if we analyze the options the only impossible value is given by:

1.0528

Because this value is higher than 1 and not satisfy the general limits for r

8 0
3 years ago
Is 42/7 a rational or natural number
Brilliant_brown [7]

Answer: rational

Step-by-step explanation:

-6 can be written as such an infinite number of ways (just as any rational can be). For example, -6/1, 6/-1, 12/-2, -666/111 and so indeed -6 is rational.

5 0
3 years ago
Read 2 more answers
Solve for W!<br> W - 2.76 = 6.7
MariettaO [177]
W - 2.76 = 6.7

isolate the W by adding 2.76 to both sides of the equal sign

W - 2.76 (+2.76) = 6.7 (+2.76)

W = 6.7 + 2.76

W = 9.46

9.46 is your answer

hope this helps
4 0
2 years ago
Read 2 more answers
A $250 suede jacket is on sale for 20% off. how much should you pay for the jacket
jarptica [38.1K]
Cross multiply to find your answer
x/250 = 20/100
250 X 20= 5000
5000=100x 
x = 50
250 - 50 = 200
8 0
2 years ago
Read 2 more answers
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