Answer: 125.6
Step-by-step explanation:
C=dpi. If 40 times 3.14 equals 125.6 then that is the circumference.
Answer:
17
Step-by-step explanation:
First of all, based on the Pythagorean theorem, a^2 + b^2 = c^2
(it's very important that the ∠ABD angle is 90 degrees)
8^2 + 15^2 = s and 5^2 + 15^2 = CD (but the original question doesn't want the value of CD, so we just need to solve for s)
64 + 225 = 289 now remember, 289 is s^2, and we only want the value of s, so we have to find its square root: √289 = 17
Hope it helped!
Answer:
64 3/16 miles
Step-by-step explanation:
Total distance walked = 16 3/4 miles = 67/4 miles (converted to improper fraction to help with division later)
number of days walked = 4 days
Miles walked per day = total distance walked ÷ number of days
= 16 3/4 ÷ 4
= 67/4 ÷ 4
= 67/4 x 1/4
= 67/16
= 64 3/16 miles
Answer:
a=3
Step-by-step explanation:
This should be very simple, just substitute xy and y for 5 and 7 respectively, so 5a-2*7=1, or 5a-14=1, or 5a=15, if we divide both sides by 5, we get a=3
