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navik [9.2K]
3 years ago
5

How to work out the decimal between 2.65 and 2.66? With working out please

Mathematics
2 answers:
Elodia [21]3 years ago
7 0

-- There are an infinite number of different numbers between 2.65 and 2.66 .
To create one, just write ' 2.65 ' and add any quantity of any digits you want
after the ' 5 '.

--  If you want the number that's exactly in the middle between them, then
that's just the <em><u>average</u></em> of the two numbers.

The average of any two numbers is    (1/2) x (the sum of the numbers).

       (1/2) (2.65 + 2.66) = (1/2) (5.31)   =   <em>2.655</em> .   


lawyer [7]3 years ago
6 0
<span>2.654 that's the answer

</span>
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3 years ago
Given that -15 is a root of x² +mx +45 = 0 find the constant m​
o-na [289]

Answer:

m = 18

Step-by-step explanation:

Given :

=> -15 is a root of the polynomial

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Process :

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5 0
2 years ago
How to do this ?<br> Don’t understand it
riadik2000 [5.3K]
X=y+3
<span>-5x-4y=<span>30
-------------------
Substitute y + 3 for x in </span></span>-5x-4y=30
<span><span>-5<span>(y+3)-</span></span>4y</span>=<span>30
</span>-9y-15=<span>30
</span>----------------------------
Add 15 to each side
<span><span>-9y-15</span>+15</span>=<span>30+<span>15
-9y = 45
</span></span>-----------------------------------
Divide each side by -9
-9y ÷ -9 = 45 ÷ -9
y = -5
Now we solve for x
====================================================================
Substitute -5 for y in x = y + 3
x=-<span><span>5</span>+<span>3
</span></span>x = -2
----------------------
(-2,-5) is your answer


7 0
3 years ago
Pleasee help ill give brainliest
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