C = pi * r ^squared
r = is radius
square the radius, multiple by r
or
2 x pi x r
<u><em>Answer:</em></u>
<em>12x</em>
<u><em>Step-by-step explanation:</em></u>
<em>*Hope this helped*</em>
<u><em /></u>
The best way to justify which answers are correct are to calculate the circumference and the area for each of the circles with the given radii. I organized this information into a chart.
Circumference | Area
1/2 3.14 0.785
1 6.28 3.14
1 1/2 9.42 7.065
2 12.56 12.56
2 1/2 15.7 19.625
The first three choices will result in a numerical value for the radius that is smaller than the area.
Answer is C
2(x-5) -3(4x+4)
Multiply (x-5) by the 2
This makes it (2x-10) -3(4x+4)
Then do the same with the -3
This makes it 2x-10-12x-12
Simplify to make it -10x-22
Answer:
x= 0.083 y = 0.5
Step-by-step explanation:
step 1:
equation 1: 6x -y
equation 2 : 4y = 2
from equation (2) 4y = 2, we calculate value of y to get x
4y = 2 ... divide both sides by 4
<u>4y </u>= <u>2</u>
4 4 y = 1 /2. y = 0.5
Step 2:
input the value of y into the equation 1 to get x.
6x - y = 0
6x - 0.5 = 0
6x- 0.5 + 0.5 = 0 + 0.5 ( Add both sides of the equation by 0.5)
6x = 0.5.... divide both sides of the term by 6
<u>6x </u>= 0.5
6 6
x = 0.083
therefore, y = 0.5 and x = 0.0833