Answer:
-6 mph
Step-by-step explanation:
45 is 3/4hour so -8 times 3/4= -24/4=-6mph
Answer:
19
Step-by-step explanation:
Median= Middle number
12-5= 7
12+7=19
Answer:
11.07
Step-by-step explanation:
6^2+9.3^2=122.49
now the square root of 122.49 is 11.067
round this up to 11.07
Answer:
inches
Step-by-step explanation:
The arc length is calculated as
arc = circumference of circle × fraction of circle
= 2πr ×
= 2π × 10 ×
= 20π × = = inches
Formula applied: p+/- Z*sqrt (p(1-p)/N)
Where
p=probability of those who will vote for candidate a = 120/400 = 0.3
Z = Critical value at 95% confidence interval = 1.96
N = Size of the sample = 400
Substituting;
Interval = 0.3+/- 1.96* sqrt (0.3(1-0.3)/400) = 0.3+/-0.045
Interval of population who will vote for candidate a at 95% confidence interval
= 0.3+0.045 to 0.3-0.045
=0.345 to 0.255 of the total population