To find the circumference of a circle you multiply pi (3.14) by the diameter ad to find the area you multiply pi (3.14) times the radius squared
Since the circumference is 31.4 divide that by pi to find the diameter which is 10
The radius of a circle is half of the diameter, so for this circle the radius is 10 / 2 = 5
Take the radius and square it : 5^2 = 25
Then multiply the squared radius by pi (3.14) to find the are : 25 * 3.14 = 78.5
So the area of this circle is 78.5 centimeters squared
Hope this helps! Mark as Brainliest please! :)))
Step-by-step explanation:
sin 0 = opposite ÷ hypothenus
sin 0 = 3 / 5
3 / 5 = x / 15
5 × n = 15
n = 3
x = 3 × 3 = 9
y = use pythagoras
= 12
tan 0 = opposite ÷ adjacent
tan 0 = 9/12
We know that,
Volume of sphere = 4/3πr³
72 = 4/3 × 22/7 × r³
72 × 21/88 = r³
³√17.18 = r
2.58 cm = r
:)
The answer is D
Explanation- Go right 2 and and 2 for each coordinate
Answer:
a. 3x + 22
b. slope is 3, y intercept is (0,22) this means points on graph rise 3 and run 1, this also means that in zero more weeks Daniel will have 22 hours of volunteering
c. 70 hours
Step-by-step explanation:
a. the slope is 3 so the coefficient and variable will be 3x, y intercept is (0,22) so the term would be + 22 together this is y=3x+22
b. just count points going up and horizontally for slope and y intercept is when x equals zero
c. look on the graph, the point is (16,70) in 16 weeks he will have 70 hours done
