Mathematics, 25.06.2019 14:30, famouzgal

Can somone answer these? free brainliest

Answers: 2

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Answers

Two

The short answer is that it multiplies by 3.
Argument
First take an example. Use the one you were given
The small circle
The small circle starts out with a diameter of 5. So find the circumference.
d = 2r
r = d/2
r = 5/2 = 2.5

Circumference = 2 pi r
Circumference = 2 * 3.14 * 2.5
Circumference = 15.7

The large circle
The large circle has a diameter 3 times as big.
D = 15
r = d/2
r = 15/2
r = 7.5

Circumference = 2 pi r
Circumference = 2 * 3.14 * 7.5
Circumference = 47.1

What are the ratios of these two numbers?
ration = 37.1 / 15.7 = 3
B <<<<< Answer

Three
Short C
Comment
Think of the conversion as pi radians = 180 degrees just as you would say 3.78 L = 1 US gallon. The definition you have been offered will get you into trouble if you don't read it properly.

Solution
Change the 3/2 * pi radians into 1.5*pi radians
pi radians / 180 = 1.5 pi radians / x where x is the angle in degrees. Divide both sides by pi.

1 / 180 = 1.5 / x Cross multiply
1*x = 180 * 1.5
x = 270

C <<<< answer.

answered: Guest

so firstly, we need to isolate the y variables to be able to solve these inequalities. firstly, add 0.5x on both sides of the first inequality and subtract 1.5x on both sides of the second inequality:

now since the slope is positive for the first inequality, this means that the line going upwards belongs to the first inequality, and the line going downwards belongs to the second inequality.

next, since y ≥ in the first inequality, this means that the shaded region will be above the first inequality's line, thus shading regions a and b.

next, since y ≤ in the second inequality, this means that the shaded region is going to be below this line, thus shading regions a and c.

since both lines shade region a, this means that region a is the solution.

step-by-step explanation:

mark brainliest!

answered: Guest

6mm^3 or .6cm^3

216

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36 6

/ \ /

6 6 6

factor trees are nice.

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