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zepelin [54]
3 years ago
12

What is the formula for margin of error?The triangles below are similar. Triangle A B C. Side A C is 10 and side A B is 5. Angle

C is 30 degrees. Triangle D E F. Side E D is 7.5 and side D F is 25. Angle F is 30 degrees and angle E is 90 degrees. Which similarity statements describe the relationship between the two triangles? Check all that apply.
Mathematics
1 answer:
Leya [2.2K]3 years ago
7 0

Answer:

d

Step-by-step explanation:

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ACCORDING TO THE FEBRUARY 2008 FEDERAL trade commission reports on consumer fraud and identity theft, Alaska had 321 complaints
balu736 [363]

Answer:  (0.205905, 0.242095)

Step-by-step explanation:

We know that the confidence interval for population proportion is given by :-

\hat{p}\pm z^*\sqrt{\dfrac{\hat{p}(1-\hat{p})}{n}}

, where \hat{p}= sample proportion

n= sample size

Let p be the proportion of complaints of identity theft .

As per given , we have

n= 1432

\hat{p}=\dfrac{321}{1432}\approx0.224

By standard normal table , z* = 1.645 for 90% confidence level.

Now , 90% confidence interval for p will be :

0.224\pm (1.645)\sqrt{\dfrac{0.224(1-0.224)}{1432}}\\\\=0.224\pm (1.645)(0.011)\\\\=0.224\pm 0.018095\\\\=(0.224-0.018095,\ 0.224+0.018095)\\\\=(0.205905,\ 0.242095)

Hence, required confidence interval = (0.205905, 0.242095)

4 0
3 years ago
Paul works at at the bucket of Cracker Barrel and makes $8.25 an hour plus tips. Paul averages $110 in tips during an 8 hour shi
MrRissso [65]

Answer:

330.00

Step-by-step explanation:

i think thats the answer someone would have to double check but this is what i did the get that

How much overtime pay do you get for working 40 hours if you get the following pay scale:

8.25 for all hours up to 40

110 for all hours in excess of 40

Calculate Total Pay

Total Wages = Regular Rate x 40 Hours + Overtime Rate x (Hours - 40)

Total Wages = 8.25 x 40 Hours + 110 x (40 - 40) Hours

Total Wages = 8.25 x 40 Hours + 110 x (0) Hours

Total Wages = 330 + 0

Total Wages = 330.00

3 0
2 years ago
Plz help due tonight
GuDViN [60]

Answer:

._. Live Quiz..

Step-by-step explanation:

5 0
3 years ago
Find the slope of a line that goes through the points (5,-2) and (1,0).
Nadya [2.5K]

Answer:

B(-1/2)

Step-by-step explanation:

So remember, the slope is y2-y1/x2/x1. Note that y2 means the second y adn x2 means the second x.

So lets plug in our numbers for the top of our fraction, y2-y1. This is 0- - 2.

You should get postive 2, since -- equals a + so it would be 0+2 equaling 2.

This is your y value of your slope.

Next lets find the x value of the slope.

Lets plug in our numbers for the bottem raction this time, which is x2-x1. This is 1-5.

You should get negative 4, since 1-5 equals -4.

This is the x value of the slope.

Knowing your y and x value of the slope, we can tell that the slope will be:

2/-4

This can be simplyfied to -1/2. Since 2 goes into 2, 1 time(for y). Then 2 goes into -4, -2 times(for x). So now its 1/-2.

The negative sign can just be moved to the front since it is the only negative and does not change:

Answer:

<u>-1/2</u>

3 0
3 years ago
Help me please need help​
IrinaK [193]

Step-by-step explanation:

.......................

7 0
3 years ago
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