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Otrada [13]
2 years ago
13

Point D is the in center of triangle ABC. Write an expression for the length x in terms of the three side lengths AB,

Mathematics
1 answer:
KiRa [710]2 years ago
6 0

Answer:

x =  \frac{2(A_T) }{(AB)  +  (AC) + (BC)}

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If the area of a rectangle is x^2+7x+12, what is the expression for the perimeter?
Cerrena [4.2K]

Length = 13 = (x + 3)

Width = 14 = (x + 4)

x2 + 7x + 12 = area of the rectangle

can be factored into

(x + 3)(x + 4)

Let L = one of the factors (x + 3)

Let W = the other factor (x + 4)

If x = 10 then

(10 + 3) = 13 = L

(10 + 4) = 14 = W

Checking this can be checked a couple of ways

Plug x = 10 into the original equation

x2 + 7x + 12

102 + 7(10) 12 = 100 + 70 + 12 = 182 = Area

Multiplty the factors

L x W = 13 x 14 = 182 = Area

I hope you find this useful if you have any questions please send me a message.

3 0
2 years ago
What's X? to: <br> 15x - 7x = (-52) - 5x
Studentka2010 [4]
-4

Because 15x-7x= 8x
8x+5x= 13x
13x= -52
-52 / 13= -4
x = -4

6 0
3 years ago
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Inga [223]

Answer:

yes 12

Step-by-step explanation:

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8 0
2 years ago
Help there are five people at the carnival they are 15 people at the other carnival how many people are there
faltersainse [42]
I think there are 20 people
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3 years ago
Find the product of 3x and x^2-4x+10 subtract x^3+7x^2-2x
Virty [35]

Answer:

below

Step-by-step explanation:

2x^3 -5x^2 +28x

I'm pretty sure this is the answer.

7 0
2 years ago
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