Answer:
80 degrees
Step-by-step explanation:
A triangle has 180 degrees so you have to add up the two angles with measurements you know (70 + 30= 100) and subtract 100 from 180
At rate x miles/ hour drove d miles/ 4 hours;
At rate x-10 miles / hour drove d miles/5 h
d miles = x• 4 miles first rate
d miles= (x-10)•5 miles second rate
5x-50= 4x
5x-4x= 50
X= 50 miles/h to get to the beach
50-10= 40 miles/h to get home
Answer:
Step-by-step explanation:
Z -2.02
x 10
µ 22.5
σ 6.2
Answer:
False
Step-by-step explanation:
x% confidence interval:
A confidence interval is built from a sample, has bounds a and b, and has a confidence level of x%. It means that we are x% confident that the population mean is between a and b.
In this question:
95% confidence interval for the mean number of oranges eaten per week per person is 0.8 to 2.6.
This means that we are 95% sure that the true population means for the number of oranges eaten per week per person is 0.8 to 2.6, not that 95% of all people eat between 0.8 and 2.6 oranges per week. So the answer is False.
