Answer:..............................................................
Basically, we want to find the circumfernece of the earth
C=pid
d=diameter
pi=pi (aprox pi=3.1419256)
C=3.14159256*8000
C=25132.74048 feet
A (-1,2)
using substitution:
substitute-2x for y in the second function
7x - 8(-2x) = -23
solve for x
7x + 16x = -23
23x = -23
x = -1
plug x = -1 into a function to find y, in this case ill plug it into the first
y = -2(-1)
y = 2
since x = -1 and y = 2
the answer is A (-1,2)
Answer:
24 meters
Step-by-step explanation:
The distance from base to the point where the bird was sitting is 9 meters. The distance from the bottom to the top was 15 meters. Height of the tree = 9 + 15 which equals 24. So the answer is 24 meters.