Answer:
20 miles with an error margin of ± 8 miles
Step-by-step explanation:
The margin of error of a result is the range in which an error can vary. To find the margin of error between both distances we have to
28-12 = 16, that is, the variation of the result has a range of 16 miles. So we will look for the midpoint of both distances
(X2-X1)/2+X1=(28-12)/2+12=16/2+12=8+12=20
So from this midpoint the value can vary between 8 points below and 8 points above that would cover the difference of 16 miles that we observed at the beginning
In this way, the correct answer is 20 miles with an error margin of ± 8 miles
Done
Answer: what kite can you put the pic
Step-by-step explanation:
Answer:
just give the question to much work
Step-by-step explanation:
Answer:
11/850 or about 1.29%.
Step-by-step explanation:
Prob ( first drawn = heart) = 13/52 = 1/4.
Prob ( second drawn = heart) = 12/51 = 4/17.
Prob ( third drawn = heart) = 11/50.
Required probability = 1/4 * 4/17 * 11/50
= 11/850.
Answer:
x = ±1/2
Step-by-step explanation:
x^2-1/4=0
Add 1/4 to each side
x^2 -1/4+1/4 = 0+1/4
x^2 = 1/4
Take the square root of each side
sqrt(x^2) = sqrt(1/4)
x = ±1/2
