3 years ago

Find the missing measure

Mathematics

1 answer:

Margarita [4]3 years ago

5 0

The answer is 112. Angles that are adjacent are equal and the other two would be 68.

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Step-by-step explanation:

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13.989 to the nearest tenth

Scrat [10]

13.989 to the nearest tenth is 14.0

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The table below represents the closing cost of ABC for the last 5 days. What is the r -value of the linear regression that fits

Gnoma [55]

Answer:

The correct option is D.

Step-by-step explanation:

The linear regression equation is in the form of

$y=bx+a$

Where,

$b=\frac{n(\sum xy)-(\sum x)(\sum y)}{n(\sum x^2)-(\sum x)^2}$

$a=\frac{(\sum y)(\sum x^2)-(\sum x)(\sum xy)}{n(\sum x^2)-(\sum x)^2}$

The formula of r is

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

The values are

$\sum x=15,\sum y=98.91,\sum x^2=55,\sum y^2=1957.8295,\sum xy=293.78, n=5$

Using above formula, we get

$r=-0.85650$

Therefore option D is correct.

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Harry buys a waffle maker priced at $48. If the sales tax is 9%, how much tax will Harry pay?

Klio2033 [76]

Answer:

2325

Step-by-step explanation:

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