Answer:
135 degrees.
Step-by-step explanation:
Assuming that it is a regular octagon, you can use the formula (n-2) (180) divided by n. n = sides. Therefore, (8-2) (180) divided by 8, which is 135.
Answer:84.82 volume nearest tenth is = 84.8
Step-by-step explanation: Find the number in the tenth place
88 and look one place to the right for the rounding digit
22. Round up if this number is greater than or equal to
5 5 and round down if it is less than
5.5
Answer:
first : x²-10x=39
{-3;13}
second : multiply both sides by 1\4
last is : {-1;5}
We know that
length of a sector=(∅/360°)*2*pi*r--------> when ∅ is in degree
r=[360°*length of a sector]/[∅*2*pi]
in this problem
∅=80°
length of a sector=100*pi ft
r=[360°*100*pi]/[80°*2*pi]-----> 225 ft
the answer is
225 ft
Answer:
12 hours and 40 minutes
Step-by-step explanation:
There are really 2 questions here.
One
1 inch / 400 miles = 9 1/2 inches / x Cross multiply
1*x = 400 * 9.5
x = 3800
Two
The plane goes 300 miles / hour
d = r * t
d = 3800 miles
r = 300 miles / hour Substitute
3800 = 300 * t Divide by 300
t = 3800 / 300
t = 12 2/3 hours
1 hour = 60 minutes
2/3 hour = y
y = 2/3 * 60
y = 40 minutes
Total time = 12 40 minutes or 12.666666 hours.
