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hodyreva [135]
3 years ago
14

PLEASE ANSWWR ASAP thanks

Mathematics
1 answer:
AleksAgata [21]3 years ago
4 0
(4x - 8) = 80/2
4x - 8 = 40
4x = 48
x = 12
answer
x = 12
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What is -4(x+6) can someone pls help
drek231 [11]

Answer:

-4x - 24

Step-by-step explanation:

distribute the -4 by multiplying it by what is in the parenthisis. Since it is negative that makes a -4x and a -24

8 0
3 years ago
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Please help As soon as possible!
True [87]

Answer:

10

Step-by-step explanation:

To find the area of a parallelogram you need to use the expression A = bh

When you plug that in it will be 120 = 12b

After this, you need to solve (10)

7 0
3 years ago
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A parabola can be drawn given a focus of (5, -3) and a directrix of y=1. Write the equation of the parabola in any form.
Anna71 [15]

Answer:

(x²-10x+33)/(-8) = y

Step-by-step explanation:

The distance between any point on a parabola from both its focus and directrix are the same.

Let's say we have a point (x,y) on the parabola. We can then say that using the distance formula,

\sqrt{(x-5)^2+(y-(-3))^2}is the distance between (x,y) and the focus. Similarly, the distance between (x,y) and the directrix is |y-1| (I use absolute value here because distance is always positive). We can find this equation by taking the shortest distance from the point to the line. Because the closest point to the line will be the same x value as the point itself, the distance is simply the distance between the y value of the point and the y value of the directrix.

Equating the two equations given, we have

\sqrt{(x-5)^2+(y-(-3))^2} = |y-1|

square both sides to get

(x-5)²+(y+3)²=(y-1)²

expand the y components

(x-5)² + y²+6y+9 = y²-2y+1

subtract y²+6y+9 from both sides

(x-5)² = -8y - 8

expand the x components

x²-10x+25 = -8y - 8

add 8 to both sides to isolate the -8y

x²-10x+33 = -8y

divide both sides by -8 to isolate y

(x²-10x+33)/(-8) = y

6 0
2 years ago
What is the surface area of the prism
slega [8]
Surface Area of the Prism = (6x4) = 2(5x4) + 2(1/2x6x4)

Surface Area of the Prism = 24 + 40 + 24

Surface Area of the Prism =88 cm²

------------------------------------------------------------------
Answer: Surface Area of the Prism =88 cm²
------------------------------------------------------------------

7 0
3 years ago
Can someone help me with this proof
larisa86 [58]

The fourth option is the correct answer.

Hope this helps! ;)

8 0
3 years ago
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