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RSB [31]
2 years ago
9

Maths question pls answer

Mathematics
2 answers:
alexira [117]2 years ago
7 0

Answer:

72cm²

Step-by-step explanation:

perimeter= 2(l+w)

         36  = 2(l+w)

       36/2 = l+w

           18 = l+w

since, l is twice as w

18= 2w + w

18 = 3w    (we can add since all the variables, and exponents are same)

18/3 = w

6= w

NOW,

 w=6  and l is equal to twice as 6

so l=12

area= l×b

        = 12×6 = 72cm²

hope this helps. It was toooo long

Sergio [31]2 years ago
5 0

Answer:

72

Length=12

Width=6

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Anika [276]

Answer:

I'll list the answers as coordinates (just input the second number in each coordinate)

(-2, 11)

(0, 1)

(2, -9)

(4, -19)

Step-by-step explanation:

So you see how the x column is filled out? You plug in the numbers in each area and solve for y.

So we start off with -2. You take the x out and place -2 instead. Your equation should look like this:

y = -5 (-2) + 1

Next you multiply -5 and -2, giving you 10. Your equation would look like this now:

y = 10 + 1

Next you add 10 and 1 together, and you have your answer. Keep doing the same thing, but instead of -2 for x, use 0, 2, and 4.

Hope I helped! Have a nice day or night! ^-^

8 0
2 years ago
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Marina CMI [18]

Answer:

The first one and the last one

Step-by-step explanation:

To sub x>0 and x<0 into every functions.

Then, u will get some function that y doesn't have a negative value or positive value.

Then, these function doesn't fulfill the range.

Then, u will get the answer.

8 0
2 years ago
What if the GCF of 18 and 54?
Viktor [21]

Answer:

18 is the GCF for 18 and 54

8 0
2 years ago
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What value of n makes the equation true?<br> 1/2 (n + 4) = 6<br> A. 8<br> B. -1<br> C. 2<br> D. 4
Black_prince [1.1K]
1/2 (8+4)= 6
1/2(-1+4)= 1.5
1/2 (2+4)= 3
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So the correct answer would be A(8)
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3 years ago
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zzz [600]

7

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-5-(-3)=-8

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