4 years ago

Graph the equation on the coordinate plane. y=-2x

Mathematics

1 answer:

KengaRu [80]4 years ago

6 0

it will be so ezee thats all 480ⁿ17 do you got it just took the test

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Find the area of this irregular polygon.

Rainbow [258]

Answer:

970m^{2}

Step-by-step explanation:

This polygon can be divided in two figures: one is a triangle, an the other one is a square.

We'll begin calculating the triangle's area, using the following formula:

$At= \frac{b.h}{2}$

Where:

$H= height = 30 m$

$B = 9 m + 9 m + 20 m = 38 m$

As you can see, I added both sides of the triangle that measure 9 m and also the lenght of the square that measures 20 m! This added up is what the base of the triangle measures on total.

$At= \frac{38 m .30 m}{2}$

$At= \frac{1140 m^{2} }{2}$

$At= 570 m^{2}$

Now we are going to calculate the square's area, that is much more simple:

$As= L^{2}$

Where:

$L=20 m$

$As= (20 m)^{2} = 400m^{2}$

To know the whole figure's area, we add up both areas:

$A = At+As = 570m^{2} +400m^{2}=970m^{2}$

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4 years ago

Hiiiiii :) do anyone wanna talk?

Alinara [238K]

Hey and yes, also can you help me with something??!

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3 years ago

If (x-3)^2=5, then x is equal to

mel-nik [20]

Answer:

x = 3 - √5 or x = 3 + √5

Step-by-step explanation:

(x-3)^2 = 5 ⇌ x-3 = ±√5 ⇌ x = 3 ± √5

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