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2 years ago

12

Please help... I don't understand this

1 answer:

vlada-n [284]2 years ago

6 0

We know that

<span>the rotation of a solid does not modify the values of the internal angles of the solid
</span>therefore
interior angle after 90° rotation=interior angle before 90° rotation
interior angle after 90° rotation=108°

the answer is the option D 108 °

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Candita uses 1 of an ounce of green paint each time she draws a green line on her painting. She draws a total of 7 green

omeli [17]

(1 + 1 + 1 + 1 + 1 + 1 + 1 ) and ( $\frac{1}{2} + \frac{1}{2} + \frac{1}{2} +\frac{2}{2}$ ) represents the amount of green paint that Candita used drawing green lines on the painting.

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2 years ago

Write the equation of the line in slope-intercept that has passes through the points (2,-5) and (8, 13).

const2013 [10]

Answer:

The equation of the straight line in Slope- intercept form

y = 3 x - 11

Step-by-step explanation:

<u><em>Explanation:-</em></u>

Given points are (2,-5) and (8, 13)

The Slope of the line

$m = \frac{y_{2} -y_{1} }{x_{2} -x_{1} } = \frac{13-(-5)}{8-2} = \frac{18}{6} =3$

Equation of the line having slope 'm' and given point

$y - y_{1} = m (x - x_{1} )$

(x₁ , y₁) = ( 2, -5 )

$y - (-5) = 3 (x - 2 )$

y + 5 = 3x - 6

The equation of the straight line in slope intercept form

y = m x + c

y = 3 x - 6-5

y = 3 x - 11

<u><em>Final answer:</em></u>-

The equation of the straight line in Slope- intercept form

y = 3 x - 11

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2 years ago

The table shows the number of calories in four meals and the cost of each meal.

Aleksandr-060686 [28]

Answer:

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Step-by-step explanation:

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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

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