3 years ago

Three factors that affect how a volcano erupts

Geography

1 answer:

BartSMP [9]3 years ago

3 0

Pressure, surroundings, magnitude <span />

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In her end-of-year exams, Jennie scored the following: Science 34%, English 90%, History 87%, Math 34%, and Geography 55%. What

vaieri [72.5K]

Answer:

The mean was 60%.

Explanation:

The mean is the average of your numbers. To calculate the mean you would have to add all the numbers together. Then, you’d divide your total amount by how many numbers you had to add together. For this example, you would add 34+90+87+34+55. This gives you a total of 300. Since you had 5 initial numbers, you would divide 300 by 5. You will come up with a final number of 60 which is your mean.

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3 years ago

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Jamie needs to build a fence around his garden, as illustrated by polygon ABCDEF on the coordinate grid below. If each unit repr

quester [9]

Answer:

Explanation:

The complete question is shown below.

The length between two points ( $x_1,y_1$ ) and ( $x_2,y_2$ ) is:

$Length=\sqrt{(y_2-y_1)^2+(x_2-x_1)^2}$

From the image attached we can get the polygon points as:

A(-5, 5), B(0. 5), C(4,2), D(1, -2), E(-2, -2), F(-5, 2). Hence the length of the polygon is gotten as:

$|AB|=\sqrt{(0-(-5))^2+(5-5)^2}=5\ yards \\\\|BC|=\sqrt{(4-0)^2+(2-5)^2}=5\ yards \\\\|CD|=\sqrt{(1-4)^2+(-2-2)^2}=5\ yards \\\\|DE|=\sqrt{(-2-1)^2+(-2-(-2))^2}=3\ yards\\ \\|EF|=\sqrt{(-5-(-2))^2+(2-(-2))^2}=5\ yards \\\\|FA|=\sqrt{(-5-(-5))^2+(2-5)^2}=3\ yards$