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vovangra [49]
2 years ago
10

" align="absmiddle" class="latex-formula">
Mathematics
2 answers:
zimovet [89]2 years ago
4 0
The answer is 2√2

√18 - √2
3 √2 - √2 = 2√2
Alex787 [66]2 years ago
4 0

Answer:

2√2

Step-by-step explanation:

18 factors down to 3 * 3 * 2

The rule for taking the square root of a number factored into primes is if they are in pairs, take one of the pairs out of the root sign and throw the other one away. Any odd number of primes always has one prime left under the root sign.

3√2 - √2    

Root 2 is a common factor on either side of the minus sign.

√2*(3 -1)

√2 * 2

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The area of a plot of land is 2496 square meters. A small part of the land is fenced. The ratio of the area of the plot of land
AfilCa [17]
My late response (haha): First, you would write a proportion.

Step 1: 2496 over 48 = x over 31
(x represents the area of the land that is not fenced).

Step 2: Cross multiply
2496 times 31 and x times 48

Step 3: Calculate
77376 = 48x

Step 4: Divide both sides by 48
77376/48 = 1612
48x/48 = x

Step 5: Write it as a sentence 
The area of the land that is not fenced is 1612 squared meters. 

Hope that helped! Good luck! :]
4 0
3 years ago
7y+3=3x+11 <br> find x and y
kvasek [131]

Answer:

7y + 3 = 3x + 11

7y = 3x + 11 - 3

7y = 3x + 8

y = 3x + 8 / 7

7y + 3 = 3x + 11

7y + 3 - 11 = 3x

7y - 8 = 3x

x = 7y - 8 / 3

5 0
3 years ago
Can you plssss helppp
EastWind [94]
Deez nu-tz gottem lol
I looked it up your so welcome
8 0
2 years ago
5. g(x) = 7x, find g(-7)
kompoz [17]

Answer:

just plug in

g(x)=7x

g(-7)=7*(-7)

7*(-7)=-49

Step-by-step explanation:

3 0
2 years ago
I don’t know..........
SOVA2 [1]

Answer:

\frac{3}{2 }

5 0
3 years ago
Read 2 more answers
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