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Artist 52 [7]
2 years ago
5

A wallpaper design uses 15 parallelogram-shaped pieces of paper,each with a bas of 3 inches and a height of 2 icnhes.How much pa

per is used to make 15 pieces?
Mathematics
1 answer:
ki77a [65]2 years ago
7 0
To answer this you will use the formula for finding area of a parallelogram.

A = bh
3 inches x 2 inches
A = 6 square inches per piece of paper

6 square inches x 15 = 90 square inches

90 in.² of paper is used to make 15 pieces.
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A hot air balloon is traveling at a altitude of 2400 feet. It begins to descend at a rate of 75 per minute. What is an expressio
irina1246 [14]

Answer:

y=-75x+2400

Step-by-step explanation:

y is the height

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7 0
3 years ago
To wash a window that is 7 meters off the ground, Roger leans a 9-meter ladder against the side of the building. To reach the wi
iren2701 [21]

Answer:

Roger should place the base of ladder approximately 5.7 m away from base of building to reach the window.

Step-by-step explanation:

Given,

Length of ladder = 9 m

We have to find that how far Roger should place the base of ladder to reach the window.

Solution,

We have drawn the diagram for your reference.

Here the building, the ladder on leaning with land makes a right angle triangle.

Where the length of ladder is 'hypotenuse'.

Height of window from the ground is 'one side of the triangle'.

And distance from base of building to the ladder is 'another side of the triangle'.

So, according to Pythagoras theorem;

"In a right angled triangle the square of the hypotenuse is equal to the sum of the squares of other two sides".

On framing in equation form, we get;

c^2=a^2+b^2

Where 'a' = 1st side of right triangle =7 m

'b' = 2nd side of right triangle

'c' = hypotenuse = 9 m

Now we put the given values and get;

9^2=7^2+b^2\\\\81=49+b^2\\\\b^2=81-49=32\\\\b^2=32

Now taking square root on both side, we get;

\sqrt{b^2} =\sqrt32\\\\b=5.65\ m\approx5.7\ m

Hence Roger should place the base of ladder approximately 5.7 m away from base of building to reach the window.

5 0
3 years ago
What is the answer tom10t=90
vitfil [10]

9..divide both sides by 10 cross out the 10 over 10 leaves 9

7 0
3 years ago
Read 2 more answers
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