Answer:
arianna grande
Step-by-step explanation:
Answer:
A. T > 2.539
Step-by-step explanation:
We have a hypothesis test of the mean, with unknown population standard deviation.
The hypothesis are:

From the hypothesis we can see that the test is right-tailed, so the critical value of t should be a positive value.
The degrees of freedom can be calculated as:

The significance level is 0.01, so the critical value tc should be the one that satisfies:

Looking up in a t-table, for 19 degrees of freedom, this critical value is tc=2.539.
I don’t know the 8 percent of what you do
Answer:
16x+36
Step-by-step explanation:
4(4x + 9)
16x+36
Answer:
6 km
Step-by-step explanation:
Start by finding the circumference of the circle
C = 2πr
C = 1.256
Multiply by 3
3.768
Convert to km
3.768 * 1.6 = 6.0288
Round to nearest whole km
6
Sorry if this is late!