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2 years ago

Elizabeth bought a cheese pizza. It was served on a metal tray with a diameter of 22 centimeters. What is the tray's area?

Mathematics

1 answer:

agasfer [191]2 years ago

4 0

<h3>Answer:</h3>

The Area of the tray ≈380 cm

<h3>Solution:</h3>

We are given the diameter of the tray, which is equivalent to 22 cm.
We are asked to find the area of the tray.
Remember the formula:
Area of a circle = πr²
Where
π -> pi (3.14...)
r -> radius
Notice that we aren't given the radius. We're given the diameter only.
No reason to panic. We can easily find the radius by dividing the diameter by 2.
The radius is equal to 11 cm.
Now, plug the values into the formula:
A=π(11)²
A=121π
A≈380 cm

Hope it helps.

Do comment if you have any query.

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2 years ago

Guys please answer question C i need it

chubhunter [2.5K]

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see below

Step-by-step explanation:

Except for the stretch factor, your work is completely correct. Multiplying only the x-coordinate by a factor of 2 results in a horizontal stretch by that factor.

Your coordinates and graph are correct.

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3 years ago

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The equation for a line that is parallel to y + 5 = 3(x - 1) and goes through the point (3,-4) will be:

y = 3x-13

Step-by-step explanation:

Given the equation

y + 5 = 3(x - 1)

Writing in the slope-intercept form

y=mx+b

where m is the slope and b is the y-intercept

y = 3(x-1) -5

y = 3x-3-5

y = 3x - 8

Thus, the slope = m = 3

We know that the parallel lines have equal slopes.

So, the slope of a parallel line is also 3

Using the point-slope form of the line equation

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3 years ago

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