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Lady bird [3.3K]
2 years ago
15

Please help! 3 Questions please show how you solved the problem

Mathematics
1 answer:
Masteriza [31]2 years ago
5 0

Answer:

1)  (-y^2-4y-8+4y^2+6y-3)

2)  32x^5y^4z^2

3)  x^3-9x^2+14x+24

Step-by-step explanation:

Given the expression we have to simplify the expression

1)   (-y^2-4y-8)-(-4y^2-6y+3)

⇒ (-y^2-4y-8+4y^2+6y-3)

Combining like terms, we get

⇒ 3y^2+2y-11

2.)    (2x^2y^3z^2)(4xy.4x^2)

⇒ (2x^2y^3z^2)(16x^3y)

⇒ 32x^5y^4z^2

3.)   (x-4)(x^2-5x-6)

⇒ x^3-5x^2-6x-4x^2+20x+24

⇒ x^3-9x^2+14x+24

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Answer:

36 inches

Step-by-step explanation:

Given data

Area of triangle =2 1/4 square inches

Area =9/4 square inches

Height of triangle =1/8 inches

We know that the expression for the area of triangle is

Area = 1/2Base *Height

9/4=1/2*Base *1/8

9/4=Base/16

Cross multiply

16*9=Base*4

144=Base*4

Base =144/4

Base=36 inches

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Step-by-step explanation:

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3 years ago
PLS ANSWER WILL MARK BRAINLIEST
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Answer:

All you have to do is to the distributive method.

Step-by-step explanation:

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3 years ago
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Answer:

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Step-by-step explanation:

Let us say, Olivia's age is x.

Now as the question says, we will get this equation.

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Multiply both sides by 3.

x + 36 = 6x - 9

Collect like terms.

x - 6x =  - 9 - 36

Calculate.

- 5x =  - 45

Divide both sides of the equation by -5.

x = 9

Then, we will get the answer.

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