The area of a sector of a circle is
. We have everything but the radius to fill in there, so let's do it:
. To make it easy, cross out the last 0 in both the 170 and the 360, and then multiply both sides by 36 to get
. Divide both sides by 17pi and you have 47.1847596=r^2 and r = 6.9
Answer:
a=2
Step-by-step explanation:
you take 20 and subtract it from both sides and then 22-20 is 2 so a equals to 2.
Answer:
y-1.7 = (-4/5)(x - 0)
Step-by-step explanation:
so m = -4/5 and a point is (0,1.7)
I prefer the slope intercept form of
y=(-4/5)x + 1.7
Answer:
3/5
Step-by-step explanation:
The formula is y = mx + b
m = slope
to get m, move add 3x to both sides and divide by 5.
-3x + 5y = 10
5y = 3x + 10
y = 3/5x + 2
So slope is 3/5
Multiply the first equation by -666 and the second by 45:-
-29970x + 217116y = -63936
29970x - 34965y = 18900
adding these 2 equations:-
182151y = -45036
y = -0.24724
x = 96 + 326* -0.24724 / 45 = 0.3422
x = 0.342, y = -0.247 Answer (correct to the nearest thousandth)
