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Step2247 [10]
3 years ago
14

Simplify the expression below: 7 a2 + 10a - 3a – 2a2

Mathematics
1 answer:
Y_Kistochka [10]3 years ago
6 0

Answer: ax(5a+7)

Step-by-step explanation:

I just know trust me

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Emilio borrows $1200 from a bank with 7.5% simple interest per year. How much will he have to pay back total in 4 years?
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Answer:

1560

Step-by-step explanation:

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1200+90+90+90+90

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The width of a rectangular rug is 4 1/4 inches longer than twice its length. If the perimeter of the rug is 56 1/2 inches, which
olga_2 [115]

The question requires calculating the perimeter of the rectangular r ug

The equation which represent the situation is 113/2 = 6x + 34/4 and length is 8 inches and width is 20 1/4 inches

Given:

let

length of the rectangular r ug = x inches

Width of a rectangular r ug = <em>(2x + 4 1/4) inches</em>

Perimeter of the r ug = 56 1/2 inches

<em>Perimeter of the r ug = 2(length + width)</em>

56 1/2 = 2{x + (2x + 4 1/4)

113/2 = 2(x + 2x + 17/4)

113/2 = 2(3x + 17/4)

113/2 = 6x + 34/4

113/2 - 34/4 = 6x

(226-34) / 4 = 6x

192/4 = 6x

48 = 6x

divide both sides by 6

x = 48/6

x = 8 inches

So,

length of the rectangular r ug = x inches

= 8 inches

Width of a rectangular r ug = (2x + 4 1/4) inches

= 2(8) + 4 1/4

= 16 + 4 1/4

= 20 1/4 inches

Therefore, the equation which represent the situation is 113/2 = 6x + 34/4 and length is 8 inches and width is 20 1/4 inches

Read more:

brainly.com/question/10452031

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A town predicts that its population will double in e ^ In 10/ 2 In e years.
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\dfrac{e^{\ln 10}}{2\ln e}=\dfrac{10}{2}=5

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A. 70 degrees<br>B. 140 degrees<br>C. 250 degrees<br>D. 110 degrees​
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