3 years ago

Help meeeeeeeeeeessss

Mathematics

1 answer:

saveliy_v [14]3 years ago

6 0

Answer:

I think its c but just so you know I'm not really smart so I might be wrong

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Lisa took a survey of her classmates' favorite sport and recorded their genders. The results are in the table below:

Igoryamba

Answer:

0.43

Step-by-step explanation:

8 0

3 years ago

The points A BC :(2, 2,1), :(1,1,3), :(2,0,5) − are the vertices of a right triangle. The radius of the sphere with center at th

ElenaW [278]

Answer:

r=1

Step-by-step explanation:

First we need to know the length of each side of the triangle, so we use the formula of the vector modulus:

$|AB|= \sqrt{(b_{1}-a_{1})^{2}+(b_{2}-a_{2})^{2}+(b_{3}-a_{3})^{2}$

By doing so, we find:

$|AB|=\sqrt {6}\\|BC|=\sqrt {6}\\|AC|=2\sqrt {5}$

With this we know that the triangle is not right, but, we assume the longest side as the hypotenuse of the problem.

As we have two equal sides, we know that the line between point |AB| and the center of the hypotenuse is perpendicular, therefore, we can calculate it using Pythagoras theorem:

$|BC|^{2}=r^{2}+(\frac{|AC|}{2})^{2}\\\\r^{2}=|BC|^{2}-(\frac{|AC|}{2})^{2}\\\\r^{2}=(\sqrt{6})^{2}- (\frac{2\sqrt{5}}{2})^{2}\\\\r^{2}=6-5=1\\r=1$

4 0

2 years ago

the total of 3/4 of a fifth grade class finished their work before recess exactly 3/4 of the students who finish before recess d

yaroslaw [1]

Answer:

This is not a question.

Step-by-step explanation:

7 0

3 years ago

A recipe for chicken soup calls for 4 cups of water fir 9 servings. How many servings can be made with 12 pints of water?

Vlad [161]

First lets convert the pints to cups.

1 pint = 2 cups
12 pints = ? cups

Now lets multiply to find out how many cups are in 12 pints.

12 × 2 = 24
24 cups in 12 pints.

Now lets look at the information we have.

4 cups of water per 9 servings

Now lets divide to see how many time 24 goes into 4.

24 ÷ 4 = 6

Now lets multiply:-

6 × 9 = 54

So, 54 servings of water fir in 12 pints of water.

Hope I helped ya!!!

7 0

3 years ago

⟟ need help with this please someone and please don’t do links

ANEK [815]

B B B B B B B B B B B

8 0

2 years ago

Help meeeeeeeeeeessss​

Help meeeeeeeeeeessss