The graph shows a trip taken by a car where t is the time(In hours) and y is the distance(in miles) fro Phoenix.

arsen [322]

Answer:

B. What is the area of regular polygon

5 0

3 years ago

34 packages are randomly selected from packages received by a parcel service. The sample has a mean weight of 25.9 pounds and a

Vlad1618 [11]

Answer:

24.6 < μ < 27.2

Step-by-step explanation:

We have that to find our $\alpha$ level, that is the subtraction of 1 by the confidence interval divided by 2. So:

$\alpha = \frac{1-0.95}{2} = 0.025$

Now, we have to find z in the Ztable as such z has a pvalue of $1-\alpha$ .

So it is z with a pvalue of $1-0.025 = 0.975$ , so $z = 1.96$

Now, find the margin of error M as such

$M = z*\frac{\sigma}{\sqrt{n}}$

In which $\sigma$ is the standard deviation of the population and n is the size of the sample.

$M = 1.96\frac{3.8}{\sqrt{34}} = 1.3$

The lower end of the interval is the sample mean subtracted by M. So it is 25.9 - 1.3 = 24.6 pounds.

The upper end of the interval is the sample mean added to M. So it is 25.9 + 1.3 = 27.2 pounds.

So the correct answer is:

24.6 < μ < 27.2

4 0

2 years ago

What is the volume of a cylinder with the following dimensions Radius 6ft Height 24ft

OLga [1]

V≈2714.34ft³I hope this answer your question.

4 0

3 years ago

HELP ME PLEASE!!! What is the value of y for the parallelogram shown A. 66 B. 60 C. 22 D. 38

Nesterboy [21]

Answer:

Option C is the correct option.

Solution,

 $3y = 66$ 

(opposite angles of parallelogram are equal )

 $or \: 3 \times y = 66 \\ or \: y = \frac{66}{3} \\ y = 22$ 

hope this helps...

Good luck on your assignment..

5 0

3 years ago

Help me plz and ty :) :)

Ivahew [28]

Answer:

1.

40 students chose papa johns and 24 did not

2. 14 students chose dominos and 10 chose pizza hut

Step-by-step explanation:

1. set up a proportion like 5/8 x x/64 and cross mutliply like 8 times x and 5 times 64

4 0

2 years ago