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klio [65]
3 years ago
6

An equilateral triangle has a perimeter of 9x + 27. What is the length of each side of the triangle?

Mathematics
1 answer:
melamori03 [73]3 years ago
7 0
9x=27 is the perimeter 
perimeter is s1+s2+s3 

each length is 3x+9

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Given that √5 ≈ 2.2360679775 and ???? ≈ 3.1415926535, find the sum √5 + ???? to an accuracy of 10−8 without using a calculator.
muminat

Answer:

√5 + π  = 537766063.1 × 10^{-8}

Step-by-step explanation:

given data

√5 ≈ 2.2360679775

π ≈ 3.1415926535

to find out

√5 + π

solution

√5 + π  = 2.2360679775 + 3.1415926535

√5 + π  =  5.3776606310

√5 + π  =  5.3776606310 × \frac{10^{-8}}{10^{-8}}

√5 + π  = 537766063.1 × 10^{-8}

3 0
3 years ago
Mark was thinking of a number Mark added 11 to it then doubles it and gets a answer of 40.5
Tatiana [17]

Answer:

9.25

Step-by-step explanation:

Mark doubled the number so we can divide 40.5 by 2 which is 20.25

Then we can subtract 11 from 20.25 because Mark added 11 to the number.

8 0
3 years ago
What are numbers like 10, 20, 30, 40 called
Yuki888 [10]
Whole numbers, integers, real numbers, rational numbers. :) 
5 0
3 years ago
Find any 3 (x,y) pairs that are solutions for the equation 2x-5y=10 . Show your work
Alla [95]

Answer:

(0,-2), (5,0) and (10,2).

Step-by-step explanation:

Given equation is 2x-5y=10.

Now we need to find 3 pairs of solutions in (x,y) form for the given equation.

As 2x-5y=10 is a linear equation so we are free to pick any number for x like x=0, 5, 10

Plug x=0 into 2x-5y=10, we get:

2(0)-5y=10

0-5y=10

-5y=10

y=\frac{10}{-5}

y=-2

Hence first solution is (0,-2)

We can repeat same process with x=5 and 10 to get the other solutions.

Hence final answer is (0,-2), (5,0) and (10,2).

5 0
4 years ago
Read 2 more answers
How do we get 144 here?
Brums [2.3K]

Answer:

the correct answer is supposed to be 120, your almost there :)

Step-by-step explanation:

6 0
3 years ago
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