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brilliants [131]
3 years ago
15

Which of thses is our number system based on A. 2s B. 10s C. 20s D. 100s

Mathematics
1 answer:
Nikitich [7]3 years ago
7 0
C. 20s!!!!!!!!!!!!!!!!!!!
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HELP PLEASE I'll give Brainly
Gennadij [26K]

Answer:

A is a 2 in the tenth place of the difference

4 0
3 years ago
The rectangle below has an area of 81-x^2 square meters and a width of 9-x meters. What expression represents the length of the
oksian1 [2.3K]

For this case we have that by definition, the area of a rectangle is given by:

A = w * l

Where:

w: Is the width of the rectangle

l: is the length of the rectangle

According to the data of the statement we have:

A = 81-x ^ 2\\w = 9-x

So, the length is given by:

l = \frac {A} {w}\\l = \frac {81-x ^ 2} {9-x}

We factor the numerator:

l = \frac {(9 + x) (9-x)} {9-x}

We simplify:

l = 9 + x

So, the length is 9 + x

Answer:

9 + x

3 0
3 years ago
Divided 80 by my number, and then added 13. The result was 93. What was my number?
igor_vitrenko [27]

The number is 6400.

We have given that,

divided 80 by my number, and then added 13.

<h3>What is the expression?</h3>

An expression or mathematical expression is a finite combination of symbols that is well-formed according to rules that depend on the context.

Suppose the number is x

\frac{x}{80}+13=93

Subtract  13  from both sides

\frac{x}{80}+13-13=93-13

\frac{x}{80}=80

Multiply both sides by 80

\\\frac{80x}{80}=80\cdot \:80

x=6400

Therefore the number is 6400.

To learn more about the number visit:

brainly.com/question/251701

#SPJ1

4 0
2 years ago
What is the next term in the geometric sequence?<br><br> 4/9,-4/3,4,...
Komok [63]

Answer:

-12

Step-by-step explanation:

r = -3

4/9 * (-3) = -4/3

-4/3 * (-3) = 4

so, 4 * (-3) = -12

7 0
2 years ago
Medicine can be described as
larisa [96]

Answer:

C) a type of drug used to cure, prevent, or treat illness or discomfort.

5 0
4 years ago
Read 2 more answers
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