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3 years ago

What is the slope-intercept equation of the line below?

Mathematics

1 answer:

denpristay [2]3 years ago

8 0

Answer:

Step-by-step explanation:

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Calculate the value of the sample variance. Round your answer to one decimal place. 9_5,9_5,2,9_5

Ugo [173]

Answer:

$s^2 = 0.01$

Step-by-step explanation:

Given

Values: 9/5, 9/5, 2, 9/5

Required

Calculate the sample variance

Sample variance is calculated using:

$s^2 = \frac{\sum (x_i - \overline x)^2}{n - 1}$

First, we calculate the mean

$\overline x = \frac{\sum x}{n}$

$\overline x = \frac{9/5 + 9/5 + 2 + 9/5}{4}$

$\overline x = \frac{7.4}{4}$

$\overline x = 1.85$

$s^2 = \frac{\sum (x_i - \overline x)^2}{n - 1}$ becomes

$s^2 = \frac{(9/5 - 1.85)^2+(9/5 - 1.85)^2+(2 - 1.85)^2+(9/5 - 1.85)^2}{4 - 1}$

$s^2 = \frac{(-0.05)^2+(-0.05)^2+(0.15)^2+(-0.05)^2}{4 - 1}$

$s^2 = \frac{0.0025+0.0025+0.0225+0.0025}{3}$

$s^2 = \frac{0.03}{3}$

$s^2 = 0.01$

<em>Hence, the variance is 0.01</em>

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2 years ago

The first triangle is dilated to form the second triangle.

MrRissso [65]

Answer:

Both true

Lelelelellele

8 0

2 years ago

Need help will give brainliest

Novosadov [1.4K]

Area is base x height
8cm is the base , 8 cm is the height
8x8=64cm

7 0

2 years ago

Heather and Alyssa are saving money for summer break. Heather currently has $50 in her savings account and she will save $25 per

Setler79 [48]

Answer:

Tilt your head back and allow your mouth to hang open widely.

Contract the back of the throat and breathe deeply through your mouth.

Inhale and exhale completely while relaxing the shoulders.

When the yawn comes “reach and extend into it” to stretch the jaw muscles.

Step-by-step explanation:

4 0

2 years ago

Read 2 more answers

A rectangle has a length of x + 7 and a width of x-2. Which equation below describes the perimeter, P, of

valkas [14]

Answer:

P = 4x + 10

Step-by-step explanation:

perimeter of a rectangle = 2( width + length )

P = 2 ( x - 2 + x + 7 )

P = 2 ( x + x + 7 - 2 )

P = 2 ( 2x + 5 )

P = 4x + 10

4 0

2 years ago