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4 years ago

Find the sum of the measures of the interior angles of the indicated convex polygon 21-gon

1 answer:

3 0

Sum of all interior angles on a polygon is

180( n - 2) n = number of sides in the polygon.

now, this one is is a 21-gon, thus the sum is 180( 21 - 2).

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What is the value of p <br> 13²=p<br>

solniwko [45]

169 because 13 x 13 = 168

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3 years ago

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The figure shown is a rectangle. If you draw a new rectangle in which the dimensions are doubled, what is the relationship betwe

KATRIN_1 [288]

the answer is A, sorry if you can't read it quite well

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4 years ago

Complete the equation of the line through (-10,-7)(−10,−7)(, minus, 10, comma, minus, 7, )and (-5,-9)(−5,−9)(, minus, 5, comma,

Tanzania [10]

Answer:

$y = -\frac{2}{5}\cdot x - 11$

Step-by-step explanation:

First, the slope is determined by using the following expression:

$m = \frac{y_{2}-y_{1}}{x_{2}-x_{1}}$

$m = \frac{-7-(-9)}{-10 - (-5)}$

$m = -\frac{2}{5}$

The y-intercept is found by using the line equation, the slope and one point:

$y = m \cdot x +b$

$b = y - m\cdot x$

$b = -7 - \left(-\frac{2}{5}\right)\cdot (-10)$

$b = -11$

The equation of the line is:

$y = -\frac{2}{5}\cdot x - 11$

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4 years ago

Smoothing a time series of observations A. is a form of statistical cheating. B. allows statisticians to use less data than woul

DedPeter [7]

Answer:

D. is used to reveal an underlying pattern in the data.

Step-by-step explanation:

Smoothing a time series is achieved when a computer uses some pre-programmed calculation methods to remove noise from large volumes of data. Smoothing helps a user detect patterns in a set of data, thus making it possible to make future predictions. For example, smoothing can be used in the prediction of the rise and fall of stock prices. This helps the traders to have an idea of what to expect in the cost of trading.

Although smoothing reveals the patterns in a set of data, it provides no explanation as to why it is so. It is left to the researcher to draw conclusions as to the reasons for the patterns.

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4 years ago

Mama L [17]

Answer: x=25, y=19

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3 years ago