Answer:
Mr. Martin drove 415 miles this week.
Step-by-step explanation:
The question says Mr. Martin drove 125 miles more than <u>last week</u>. How many miles did Mr. Martin drive this week?
How many miles did he drive last week?
Remember: 290 miles is the miles he drove last week.
The problem says he drove 125 miles AND 290 miles this week. So you take the SUM of them to see how many miles he drove together.
290 + 125 = 415
Answer:
1) 188.4 in³
2)306 in³
3)210in³
Step-by-step explanation:
1) r = 5in h = 12in
5 * 12 * 3.14
2) L = 3 W = 8.5 H = 12
3 * 8.5 * 12
3) ( B = 5 W = 7 H = 12)
.5(5 * 7 * 12)
Answer:
The value is
The correct option is a
Step-by-step explanation:
From the question we are told that
The margin of error is E = 0.05
From the question we are told the confidence level is 95% , hence the level of significance is
=>
Generally from the normal distribution table the critical value of is
Generally since the sample proportion is not given we will assume it to be
Generally the sample size is mathematically represented as
=>
=>
Generally the margin of error is mathematically represented as
Generally if the level of confidence increases, the critical value of increase and from the equation for margin of error we see the the critical value varies directly with the margin of error , hence the margin of error will increase also
So If the confidence level is increased, then the sample size would need to increase because a higher level of confidence increases the margin of error.
Answer:
636.4 in³
Step-by-step explanation:
Volume of a cone is given by:
where r is the radius of the base of the cone and h is its height.
It is given that, the radius of the base of the cone is, r = 8 in
The height of the cone is, h = 9.5
Thus, the volume of the cone is 636.4 in³