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ahrayia [7]
3 years ago
14

Seventh grade

Mathematics
1 answer:
victus00 [196]3 years ago
7 0

Answer:

Maybe it could be six or 30

Step-by-step explanation:

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The table shows the number of calories in four meals and the cost of each meal.
Aleksandr-060686 [28]

Answer:

A weak negative correlation

Step-by-step explanation:

correlation, r = \frac{∑(y-\alpha)(x-\beta  }{\sqrt{∑(y-\alpha)^2∑(x-\beta )^2 } }

where,

\alpha = \frac{∑y}{n} \\\beta =\frac{∑x}{n} \\∑ = summation

\alpha = \frac{3230}{4} = 807.5\\\\\\\beta =\frac{46}{4} = 11.5

therefore,\\\\r= -0.12924

This represents a weak negative correlation

6 0
3 years ago
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Gina bought a frame for $15 and a bookshelf for $72. Sales tax is 8%. What is Gina's total cost?
Svetlanka [38]

Answer: B 93.96

Step-by-step explanation:

cross out all the ones you know are wrong a is wrong c is wrong becuase of tax. D is wrong aswell I don’t really have a step by step but I can almost assure you im right

5 0
3 years ago
Lilly found 40 seashells. She
maks197457 [2]

Answer:

4 buckets

Step-by-step explanation:

40 divided by 10 is 4

6 0
3 years ago
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Please help me find the area of the triangle in terms of x!
Vitek1552 [10]

Answer:

Solution,\\Area~of~triangle=\frac{1}{2} (base)(height) = \frac{1}{2}(2x+\frac{1}{4}) (x-8)\\~~~~~~~~~~~~~~~~~~~~~~~~ =\frac{1}{2}[2x^2-16x+\frac{1}{4}x-\frac{1}{4}(8)]\\ ~~~~~~~~~~~~~~~~~~~~~~~~ =\frac{1}{2}[2x^2-\frac{63}{4}x - 2]\\~~~~~~~~~~~~~~~~~~~~~~~~=x^2-\frac{63}{8}x-1

7 0
3 years ago
With the values in the same order but with parentheses make the following sentence true
LenKa [72]

Answer:

(8×5)-(4×3)+(16÷4)=33

Step-by-step explanation:

It is more easier like that

7 0
3 years ago
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