Answer:
3
Step-by-step explanation:
Angle ECD is 118°, let me know if you need an explanation or just wanted the answer
find the discount
$30 x 0.25 = $7.50 discount of 25% off
subtract the discount $30 - $7.50 = $22.50
The sale price of the game is $22.50.
Answer:
circumference = 43.98
Step-by-step explanation:
C=2πr=2·π·7≈43.9823
Brainliest?
Step-by-step explanation:
the area of a circle (all 360°) is
pi×r²
with r being the radius.
the area of a circle segment is just the corresponding fraction of the whole circle.
so the area of a segment of x degrees is
pi×r² × x/360
in our case we know
pi×42240² × x/360 = 180 mi²
we also know that there are 5280 ft in 1 mile.
so, the radius is actually
42240 / 5280 = 8 miles
and therefore our equation resulting in mi² has to use miles and not ft and has to look that way :
pi×8² × x/360 = 180 mi²
pi×64 × x/360 = 180
pi×64 × x = 180×360
pi×x = 180×360/64 = 1012.5
x = 1012.5/pi = 322.2887598...°
so, the angle of the segment of a circle with the area of 180 mi² and the radius of 8 mi is 322.2887598...°
