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Blababa [14]
3 years ago
11

Which is an irrational number between -9 and -10?

Mathematics
2 answers:
ddd [48]3 years ago
8 0

Answer:

-sqrt85

Step-by-step explanation:

An irrational number is a number that cannot be written as fraction a/b where and b are integers

sqrt85 is simplified, and cannot be written as a/b with integers a and b, therefore -sqrt85 is irrational.

UkoKoshka [18]3 years ago
5 0

Answer:

maybe -9.1666 top second one?

You might be interested in
Which of the following best describes the English expression the quotient of nine and the sum of a number and one
Alika [10]
Quotient of means divide and the placement of the symbol is where the word "and" is located... the closest "and" unless you see "sum of", "product of", "difference of", or even another "quotient of" between it and "and".

In this case the first "and" is closest so the division sign will go there and the 2nd "and" will be replaced with a + sign.
Ways to write the answer:
9 ÷ (x + 1) 

\frac{9}{x+1}

3 0
4 years ago
An equilateral triangle has a side length of 30.
Lerok [7]

Answer:

x=9

y=3

Step-by-step explanation:

since all three sides of an equlateral triangle are equal:

3x+y=30   then y=30-3x

4x-2y=30

4x-2(30-3x)=30

4x-60+6x=30

10x=90

x=9

3x+y=4x-2y

x=3y

y=3

5 0
3 years ago
Please help!!! Thanks!
Darina [25.2K]
8x+(4*30)=6(6+30)
8x+120=6x+180
2x=60
x=30 pounds of coffee
3 0
3 years ago
Can anyone help with this???
VikaD [51]

Answer:

56.25

Step-by-step explanation:

The number you need to add to both sides to complete the square needs to be calculated by doing (\frac{b}{2})². So, in this problem, b= -15.

-15/2 = -7.5, and -7.5² = 56.25. This is the number you will add to complete the square

6 0
4 years ago
What fraction of 3 1/2 is 1 1/6
FinnZ [79.3K]
For the first one its 7/2 and the second one is 7/6 
and u cant covert them into a proper fraction you can only covert them into a improper fracion 
7 0
3 years ago
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