Pls Help! Which one is suppose to go in the box?

Mathematics

2 answers:

Vika [28.1K]2 years ago

8 0

nvm maybe the last one lol

Nataliya [291]2 years ago

3 0

Answer:

i think its the last one

Step-by-step explanation:

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The mean weight 20 students in a room is 65 kg one student one student who weight is 88kg went into the room what is the new mea

umka2103 [35]

The new mean is 66.09

<u>Explanation:</u>

Mean weight of 20 students = 65kg

One student with 88kg entered the room.

New mean = ?

$\frac{x_1+x_2+....+x_2_0}{20} = 65$

$\frac{x_1+x_2+....+x_2_0 + 88}{21} = ?$

The above equation can further be written as:

$x_1 + x_2 +....+x_2_0 = 65 X 20\\\\x_1 + x_2 +....+x_2_0 = 1300$

New mean = $\frac{1300 + 88}{21}$

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Therefore, the new mean is 66.09

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2 years ago

How to find the slope of two points

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-- Find how much 'x' changes from the first point to the second one.

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KIM [24]

Answer:

1. 10

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Step-by-step explanation:

To find the missing side of a right triangle, use the Pythagorean Theorem. The Pythagorean Theorem is $a^2+b^2=c^2$ where a and b are the legs with a being the smallest and c is the hypotenuse.