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3 years ago

6

on a recent latin quiz, two people scored a 100, three people scored a 90, five people scored an 80, one person scored a 70. fin

d the standard deviation of these scores

1 answer:

irina [24]3 years ago

4 0

The answer is 70. Tell me if I’m right

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-31+(-42)=<br> 38+(-43)=

Mice21 [21]

Answer:

-31+(-42)= -31-42 = -73

38+(-43)= 38-43 = -5

(-) - (-) = +

(-)+(-) = +

(-)+(+) = -

3 0

3 years ago

The equation y2/100+x2/4 =1 represents an ellipse. Which points are the vertices of the ellipse? (−10, 0) and (10, 0) (−2, 0) an

mina [271]

Answer:

see explanation

Step-by-step explanation:

For the ellipse

$\frac{x^2}{a^2}$ + $\frac{y^2}{b^2}$ = 1

Then the vertices are (a, 0), (- a, 0) and (0, b), (0, - b)

Given

$\frac{y^2}{100}$ + $\frac{x^2}{4}$ = 1

Then

a² = 4 ⇒ a = 2 and b² = 100 ⇒ b = 10

Hence the vertices are

(2, 0), (- 2, 0) and (0, 10), (0, - 10)

8 0

3 years ago

Read 2 more answers

Calculate the number of atoms, please help in struggling

Veseljchak [2.6K]

Answer:

I think there are 13 atoms present.

Step-by-step explanation:

Please mark brainliest

8 0

2 years ago

Find the measure of and angle between o degrees and 360 degrees coterminal with an angle of 399 degrees in standard position

horrorfan [7]

Answer:

39 degrees.

Step-by-step explanation:

We want an angle x such that 0 < x < 360 and angle x is coterminal with an angle of measure 399 degrees.

so x = 399 - 360 = 39 degrees

5 0

3 years ago

What happens when a triangle is dilated using one of the vertices as the center of the dilation? Complete

Yuki888 [10]

Answer:

The sides of the triangles adjacent to the center of dilation will be collinear. The third sides of the pre-

image and image will be “parallel”

The vertex used as the center of dilation will be in “the same location in both triangles”

8 0

3 years ago