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LenaWriter [7]
3 years ago
11

X^2-36 If someone could find me a easier way to do this I will give brainly.

Mathematics
1 answer:
yanalaym [24]3 years ago
5 0

Answer:

a^2 - b^2 = (a+b)(a-b) where a = X and b = 6

(X+6)(X-6)

Hope this helps(:

Step-by-step explanation:

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Y is directly proportional to x, and y=56 when x=7. find the value of y when x=4.
podryga [215]
Y=kx
when y=56, x=7
56=7k
k=8
when x=4
y=8(4)
y=32
value of y=32
6 0
3 years ago
Calculate the value of b + 12.5=12
KATRIN_1 [288]

Answer:

\large\boxed{b = -0.5}

Step-by-step explanation:

Hope this helps, have a great day

3 0
3 years ago
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A rectangular room is 3 meters longer than it is wide, and its perimeter is 22 meters. Find the dimension of the room. The lengt
lyudmila [28]

Answer:

Width = 4 m

Length = 7 m

Step-by-step explanation:

given:

perimeter of a rectangle = 22m

L = 3 + W

perimeter = 2L + 2W

perimeter = 2 (3 + W) + 2W

22 = 6 + 2W + 2W

22 - 6 = 4W

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L = 3 + W

L = 3 + 4

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check:

perimeter = 2L + 2W

22 = 2(7) + 2(4)

22 = 14 + 8

22 = 22  ---- OK

4 0
3 years ago
What is the mean absolute deviation of the following data set
tatuchka [14]

Answer:

4.32

Step-by-step explanation:

First, we have to find the mean of the data set.

16, 11, 9, 12, 11, 10, 10, 8, 15, 0, 2, 15, 14, 7, 11, 5, 14, 20, 3, 11, 13, 7, 0, 5, 21 all added together equals 250. 250 divided by 25 = 10. So 10 is the mean.

Now we have to find the absolute distances of each number from the mean.

16 - 10 = 6... 11 - 10 = 1... so on, giving us this -->

6, 1, 1, 2, 1, 0, 0, 2, 5, 10, 8, 5, 4, 3, 1, 5, 4, 10, 7, 1, 3, 3, 10, 5, 11

Finally, we have to find the mean of the distances (which is done by adding all the numbers above and dividing the sum by the number of values there are).

108 divided by 25 = 4.32.

So, 4.32 is the mean absolute deviation (MAD) of the following data set.

4 0
2 years ago
Replace the? with one of following symbols (<, >, =, or) 2+3? 4+1
belka [17]
It would be the = sign because 2+3 equals 5, and so does 4+1.
6 0
3 years ago
Read 2 more answers
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