3 years ago

Explain what the variable represents in an addition or subtraction expression

Mathematics

1 answer:

Stels [109]3 years ago

3 0

A varible represents the number u are looking for.

Example:
2x + 3x

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I need help with my homework I did it but it is wrong.

il63 [147K]

Answer:

π= 3V/(4r³)

Step-by-step explanation:

<u>Solve for π</u>

V = 4/3πr³
3/4V = πr³
3V/(4r³) = π
π= 3V/(4r³)

3 0

3 years ago

Read 2 more answers

The area of a circle is 28.26 square meters. What is the circle's diameter?

ikadub [295]

Answer: area for circle is πr² so πr² =28.26 and we can sub 3.14 as pi

3.14*r²=28.26 we can divide by 3.14 to get r² on it's own

r²=28.26/3.14

then we root both sides to get r on it's own

28.26/3.14=9 √9=3

and the diameter is double the radius 3*2=6 so the diameter is 6

Step-by-step explanation:

7 0

3 years ago

Need help with this math problem

-BARSIC- [3]

z = 37°

Step-by-step explanation:

The exterior angle theorem says that the sum of two internal angles is equal to the exterior angle

In this case the sum of z and z+4 will be equal to z+41

Writing mathematically

$z + z+ 4 = z + 41\\2z+4 = z + 41\\2z -z = 41 -4\\z = 37$

Hence

z = 37°

Keywords: Angles, Triangles

Learn more about angles at:

#LearnwithBrainly

3 0

4 years ago

What is 714 divided by 14?

ivanzaharov [21]

Answer:

Step-by-step explanation:

Hope this helps

3 0

3 years ago

Read 2 more answers

Find the slope of the line on the graph.

Delicious77 [7]

The answer would be slope= -5/4

Hope this helps

Have a great day/night

Feel free to ask any questions

8 0

3 years ago