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denis-greek [22]
2 years ago
13

What is the area of a circle whose radius is 20 meters? PLEASE HELP

Mathematics
2 answers:
ipn [44]2 years ago
5 0

Answer:

THE LAST ONE ON THE BOTTOM

Step-by-step explanation:

400 • 3.14 is 1256

dybincka [34]2 years ago
3 0

Answer:

area : pi*r^2

pi * 20^2

400pi m^2

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It is the morning of the community-wide yard sale that Joe has been anticipating. According to The Weather Channel there is a 10
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A

Step-by-step explanation:

United states is too broad and too many different conditions for the land. You do not base weather on the date either.

8 0
3 years ago
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Tcecarenko [31]
A, 25.376. This rounded to the nearest hundredth would be 25.38 not 25.37.
4 0
2 years ago
9(42) - 9(4) = 9(30) + 9 (___)
OverLord2011 [107]

Answer:

8

Step-by-step explanation:

378-36-270=9x

72=9x

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5 0
2 years ago
the straight line L has the equation 4y=5x+3. Point A has the coordinates (3,-2) Find the equation of the line straight line tha
Aleonysh [2.5K]

Answer:

y = - \frac{4}{5} x + \frac{2}{5}

Step-by-step explanation:

The equation of a line in slope- intercept form is

y = mx + c ( m is the slope and c the y- intercept )

Rearrange 4y = 5x + 3 into this form by dividing the 3 terms by 4

y = \frac{5}{4} x + \frac{3}{4} ← in slope- intercept form

with slope m = \frac{5}{4}

Given a line with slope m then the slope of a line perpendicular to it is

m_{perpendicular} = - \frac{1}{m} = - \frac{1}{\frac{5}{4} } = - \frac{4}{5} , thus

y = - \frac{4}{5} x + c ← is the partial equation

To find c substitute (3, - 2) into the partial equation

- 2 = - \frac{12}{5} + c ⇒ c = - 2 + \frac{12}{5} = \frac{2}{5}

y = - \frac{4}{5} x + \frac{2}{5} ← equation of perpendicular line

4 0
2 years ago
A submarine traveling 200 meters below the surface of the ocean increases its depth by 45 meters. Adam says that the new locatio
My name is Ann [436]

Answer:

The error that Adam could have made is added 45 to the depth of

submarine instead of adding -45

Step-by-step explanation:

* Lets explain how to solve the problem

- A submarine traveling 200 meters below the surface of the ocean

- Increases its depth by 45 meters

- Adam says that the new location of the submarine is -155 meters

- We need to know the error of Adam

∵ We consider the surface of the ocean is the zero level

∵ The submarine is 200 meters below the surface of the ocean

∵ Below means negative

∴ The depth of submarine is -200 meters

∵ It increases the depth by 45 meters

- <em>That means it travels down another 45 meters</em>

∵ Down means negative

∴ The depth of submarine = -200 + (-45) = -245 meters

∴ The depth of submarine is 245 below the surface of the ocean

- Adam could thought that the submarine traveled up for 45 meters

 then he add 45 to -200

∵ -200 + 45 = -155 meters

∴ The error that Adam could have made is added 45 to the

   depth of submarine instead of adding -45

3 0
3 years ago
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