Answer:
<h2><u><em>
C=2π(r)</em></u></h2>
Step-by-step explanation:
Which formula can we use or find the circumference of a circle when we know the radius?
Answer:
i think its four..not sure though <3
Step-by-step explanation:
you take two fingers and take another set of two fingers and mash them together making 4 fingers!!!!
Answer:
56π
Step-by-step explanation:
1. Approach
To find the radius of a circle, use the formula;
π
To find the area of the shaded region, find the area of the larger circle, and then subtract the area of the smaller circle from it.
It is given that the larger circle has a radius of 9, and the smaller has a radius of 5.
2. Area of the larger circle
π
Substitute in known value (use 3.14 for π)
A = 254.47
3. Area of the smaller circle
π
Substitute in known value (use 3.14 for π)
A = 78.54
4. Area of the shaded region
Subtract the area of the smaller circle from the area of the larger circle;
254.47 - 78.54 = 175.93
~ 56π
Answer:
Step-by-step explanation:
Let x represent the number of video games that Kevin rents.
Let y represent the total amount that he paid for x video games rental.
The slope intercept form of an equation is expressed as
y = mx + c
Where
m = slope
c = intercept
When Kevin rented 2 games, he had spent a total of $25 of his money. When Kevin rented 2 more video games (4 total), he then had spent $30 total of his money at this store all together. Therefore,
Slope, m = (30 - 25)/(4 - 2) = 5/2 = 2.5
To determine the intercept, c, we will substitute m = 2.5, x = 4 and y = 30 into y = mx + c. It becomes
30 = 2.5 × 4 + c
30 = 10 + c
c = 30 - 10 = 20
The Slope-Intercept Form to model how much Kevin pays per x video game rentals with his store membership becomes
y = 2.5x + 20
The cost per video game rental is $2.5
The membership fee is $20