Answer:
8820.26 yd
Explanation:
the formula for finding the area of a circle is π × radius². since the diameter of the circle is given, we can simply divide it by 2 to find the radius.
106 ÷ 2 = 53
now, we can substitute this into the formula:
π × radius²
= 3.14 × 53²
= <u>8820.26 yd</u>
i hope this helps! :D
x=2, y=-3
Step-by-step explanation:
x+3y+-7
move variable to the right and -3y from each side
x+3y-3y=-7-3y
x= -7-3y
3x -4y=18
3(-7-3y)-4y=18
solve for y, distribute
-21-9y-4y=18
collect like terms
-21-13y=18
move constant and change sign
-13y=18+21
add
-13y=39
divide by -13
y= -3
substitute
x=-7-3(-3)
solve
x=2
7.719km
10 - 2.281 is 7.719