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xxTIMURxx [149]
3 years ago
14

The question is Mrs.Elliot's room area (including the storage area)= ???

Mathematics
1 answer:
kirill115 [55]3 years ago
5 0
I think the total area of both is 3,864
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Which value must be added to the expression x2 + 12x to make it a perfect-square trinomial?
denis23 [38]

36 is must be added to the expression x² + 12x to make it

perfect-square trinomial

Step-by-step explanation:

The perfect-square trinomial x² + 2ax + a² = (x + a)², then

1. The first term in the trinomial is square the 1st term in the bracket

2. The middle term in the trinomial is the product of 1st , 2nd

    terms of the bracket and 2

3. The 3rd term in the trinomial is square the 2nd term in the bracket

∵ The expression is x² + 12x

∵ We must add the 3rd term which make it perfect-square trinomial

- Divide 12x by 2 to find the product of the 1st term and 2nd term

  in the bracket

∵ 12x ÷ 2 = 6x

∴ The 1st term is x and the 2nd term is 6 of the bracket

∵ The 3rd term in the trinomial is square the 2nd term in the bracket

∴ The 3rd term in the trinomial is 6² = 36

∴ x² + 12x + 36 = (x + 6)²

36 is must be added to the expression x² + 12x to make it

perfect-square trinomial

Learn more:

You can learn more about perfect-square trinomial in brainly.com/question/7932185

#LearnwithBrainly

4 0
2 years ago
Between 8 a.m. and 3 p.m. on a summer day, the outdoor temperature increased by 23 degrees. Between 3 p.m. and 10 p.m., the temp
AleksAgata [21]

Answer:

46

Step-by-step explanation:

46

5 0
2 years ago
What is the value of x, given that figure PTRA is an iscosceles trapezoid
Westkost [7]
Well it think the answer is D.98
3 0
3 years ago
Read 2 more answers
Are the ratios 6:4 and 19:12 equivalent?
MrRa [10]

Answer: No, they are not.

Step-by-step explanation: To see if ratios are equivalent, you have to simplify them. 6:4 can be simplified to 3:2 but 19:12 cannot be simplified anymore. Since 3:2 is not equal to 19:12, they are not equivalent.

4 0
2 years ago
-5 x + y = - 21 and y = x - 1 solve the system of equation
Kitty [74]

Answer:

Step-by-step explanation:

-5x + (x -1) = -21

-4x = -20

x = 5

3 0
2 years ago
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