Answer:
6
Step-by-step explanation:
The length form -1 to 2 is 3
The length from -3 to 2 is 5
√3²+5² = √9+25 =√36=6
Answer:
25% of people said that they were satisfied.
Step-by-step explanation:
700 x 4 = 2,800 which means 700 is 1/4 of 2,800 and 1/4 as a percentage is 25%
Move the decimal to the right 8 places
Answer:
r = 225 Mil/h speed of the airplane in still air
Step-by-step explanation:
Then:
d is traveled distance and r the speed of the airplane in still air
so the first equation is for a 4 hours trip
as d = v*t
d = 4 * ( r + 25) (1) the speed of tail wind (25 mil/h)
Second equation the trip back in 5 hours
d = 5 * ( r - 25 ) (2)
So we got a system of two equation and two unknown variables d and
r
We solve it by subtitution
from equation (1) d = 4r + 100
plugging in equation 2
4r + 100 = 5r - 125 ⇒ -r = -225 ⇒ r = 225 Mil/h
And distance is :
d = 4*r + 100 ⇒ d = 4 * ( 225) + 100
d = 900 + 100
d = 1000 miles
Answer:
Step-by-step explanation:
Please excuse my handwriting lol.
