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RUDIKE [14]
3 years ago
6

The radius of a circle is 3 cm. Find its area to the nearest tenth.

Mathematics
2 answers:
never [62]3 years ago
5 0

Answer:

area of circle=πr²=3.14×3²=28.28=28cm²

Minchanka [31]3 years ago
4 0

Step-by-step explanation:

Given

Radius (r) = 3 cm

Area of the circle

=πr²

= 3.14 * 3 * 3

= 28.3 cm²

Hope it will help :)

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I need some help on this, I do NOT get it lol
andrew11 [14]

Answer:

Logarithmic

Step-by-step explanation:

It's literally a logarithmic function because it includes "log" which is short for logarithmic.

3 0
3 years ago
X+3y=-5
zmey [24]

Answer:

Tyler's - (-5 - 3y) + (3y) = -5

Han's - (x) + (-5 - x) = -5

Step-by-step explanation:

If we are going to use Tyler's first step then we would use x = - 5 - 3y and substitute it in the original simultaneous equation x + 3y = -5, becoming (-5 - 3y) + (3y) = - 5 giving an exact answer of - 5.

But if we are using Han's first step then we will still substitute into the original simultaneous equation but in 3y. It would become

x + (-5 - x) = - 5 which also gives us an exact answer of -5.

Thus proving that both first steps show the same solution of -5.

3 0
2 years ago
Find the value of y
Rainbow [258]
You'll apply the geometric mean formula. The idea is to multiply the two pieces of the hypotenuse: 5*11 = 55

Then apply the square root to get sqrt(55)

The exact answer in terms of radicals or square roots is sqrt(55)

Using a calculator, the approximate answer is sqrt(55) = 7.416198

If your teacher wants you to use a proportion, then one way to do it is to have
11/y = y/5
11*5 = y*y
55 = y^2
y^2 = 55
y = sqrt(55)
y = 7.416198 approximately
4 0
4 years ago
PLEASE HELP<br><br> How do I solve 7,9, and 10 also what are the answers?
Kobotan [32]
7.
360 degrees- the other angles = x
4 0
3 years ago
Whats 9+10? dont answer wrong
ozzi

19

Step-by-step explanation:

when we add 9 and 10 we will get sum 19

4 0
3 years ago
Read 2 more answers
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