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Lisa [10]
4 years ago
8

A letter that represents an unknown number is

Mathematics
2 answers:
Ganezh [65]4 years ago
8 0
Hey there! Hello!

I believe what this question (more of a statement) is asking is to identify what a letter that represents an unknown number is called. Most of the time, i refer to it as just a variable, or an unknown variable. It can also be referred to as just an unknown value. 

Feel free to ask me any additional questions if you have any! :-)
aleksandr82 [10.1K]4 years ago
7 0
The variable that's what it is called.. it could be represented with any letter but x most of the time
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The length of a leg of an isosceles right triangle is 20 inches. Find the length of the hypotenuse in radical form
Over [174]

Answer: H = 20\sqrt{2}

Step-by-step explanation:

To find the hypotenuse , we will use Pythagoras theorem, which states that

The square of the hypotenuse = the square of the adjacent + the square of the opposite.

Since , we are dealing with isosceles right triangle , this means that :

both the adjacent and the opposite are equal, using the formula to find the hypotenuse , let H represent the hypotenuse , then

H^{2} = 20^{2} +  20^{2}

H^{2} = 400 + 400

H^{2} = 800

Take the square root of both sides

H = \sqrt{800}

\sqrt{800} can be written as \sqrt{400} x\sqrt{2}

Therefore :

H = \sqrt{400} x\sqrt{2}

H = 20x \sqrt{2}

H = 20\sqrt{2}

6 0
3 years ago
Find circumference when pi is 22/7
sashaice [31]

Answer:

what is radius

Step-by-step explanation:

tell me what is the radius

8 0
3 years ago
How do you factor n^3+1000
marysya [2.9K]
N^3 + 1000
Steps
you have to apply the sum of cubes rule: x^3 + y^3 = (x + y)(x^2 - xy + y^2)
which is... n^3 + 1000 = (n + 10)(n^2 - 10n + 10^2)
= (n + 10)(n^2 - 10n + 10^2)
Simplify
= (n = 10)(n^2 - 10n + 100)
8 0
3 years ago
jeremy mowed several lawns to earn money for camp. after he paid $17 for gas, he had $75 leftover to pay towards camp. write and
USPshnik [31]
Money earned = e=75+17=92
8 0
3 years ago
Find the area of the figure below.
Fudgin [204]

Answer:

Area = 42 in^2

Step-by-step explanation:

here's your solution

=> divide above picture in two parts

=> rectangle and traingle

=> area of rectangle = length* width

=> area of rectangle = (5*6)in.

=> area of rectangle = 30 in^2

=> now, area of traingle = 1/2*base *height

=> area of traingle = 1/2*4*6

=> area of traingle = 12 in^2

=> area of figure = 30 in^2 + 12 in^2

=> Area = 42 in^2

hope it helps

3 0
3 years ago
Read 2 more answers
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