Answer:
My answer is 57.776
Step-by-step explanation:
Diameter= 9.2 km
3.14×2 = 6.28
6.28× 9.2
= 57.776
Dunno about rounding it to tenths cause that would be 60
Answer:
0.375
Step-by-step explanation:
This is easy the answers 55 you just need to divide
165 ÷ 3 = ?
Step 1: Look at the multiplications of three can you make a group with an answer close to one? if not look at 16 and the multiplications of three is there a number close to 16 or exact?
Step 2: In this case 5 × 3 = 15, so 15 is close to 16.
Step 3: Now you need to subtract 16 and 15, 16 - 15 = 1.
Step 4: Like there's no number that has 1 as a answer, you need to lower the 5.
Step 5: Once you lower the five it makes 15 in the in the multiplications of three is there something close to 15 or exact? Yes there is a number that can make 15, it's 5 × 3 so 15 take away 15 makes zero so your answer will be simple, 55.
So Luke's dad needs to save $55 each week.
(sorry if their is spelling errors)
You could work backwards. -9+5 = -4. Then, -4-2 = -6.
It was -6°C at 3 p.m.
Hope that helped you.
Answer:
We conclude that there is a significant difference between the variances of salaries for seniors and managers.
Step-by-step explanation:
We are given the following in the question:
Alpha, α = 0.05
First, we design the null and the alternate hypothesis
We use F-test to determine the difference in variation between the two samples.
Formula:
Putting all the values, we have
Now we calculate the p-value at degree of freedom(26-1 = 25, 25-1 = 24)
P-value = 0.000053
Since the p value is less than the significance level, we fail to accept the null hypothesis and reject it. We accept the alternate hypothesis.
Thus, we conclude that there is a significant difference between the variances of salaries for seniors and managers.
