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4 years ago

8

Solve both equations for y and graph -4x+y=-2-6x+3y=2

2 answers:

JulijaS [17]4 years ago

8 0

I put the solution on the paper

andrew-mc [135]4 years ago

5 0

Y=4x-2
y=2x+2/3

Put the equations into Google and it will give you a graph.

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7 0

4 years ago

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In an isosceles trapezoid the length of a diagonal is 25 cm and the length of an altitude is 15 cm. Find the area of the trapezo

andreev551 [17]

Answer:

The area of the trapezoid is $525\ cm^{2}$

Step-by-step explanation:

we know that

The area of a isosceles trapezoid is equal to the area of two isosceles right triangles plus the area of a rectangle

step 1

<em>Find the area of the isosceles right triangle</em>

Remember that

In a isosceles right triangle the height is equal to the base of the triangle

we have

$h=15\ cm$

so

$b=15\ cm$

The area is equal to

$A=\frac{1}{2}(b)(h)$

substitute the values

$A=\frac{1}{2}(15)(15)=112.5\ cm^{2}$

step 2

Find the area of the rectangle

The area of the rectangle is equal to

$A=LW$

we have

$W=15\ cm$ -----> is the height of the trapezoid

$d=25\ cm$ -----> the diagonal of the rectangle

Applying the Pythagoras Theorem

$25^{2}=L^{2}+15^{2}\\L^{2}=25^{2}-15^{2} \\ L^{2} =400\\L=20\ cm$

The area of the rectangle is

$A=(20)(15)=300\ cm^{2}$

step 3

Find the area of the trapezoid

$A=2(112.5\ cm^{2})+300\ cm^{2}=525\ cm^{2}$

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4 years ago

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patriot [66]

Answer:

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Step-by-step explanation:

270-5 = 265

265/5 = 53

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3 years ago

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Micheal has 1/2 of a yard of fabric to make book covers. Each book cover is made from 1/8 of a yard of fabric. How many book cov

lesantik [10]

Answer:

4

Step-by-step explanation:

$\frac{1}{2}$ ÷ $\frac{1}{8}$ = 4

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3 years ago

a rectangle is 12 in wide and 18 in tall.if it is reduce to a height of 3 inches, then how wide will it be?

netineya [11]

Answer:

2 in

Step-by-step explanation:

18/3=6 , 6 is the scale factor

12/6=2

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3 years ago

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