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Kruka [31]
3 years ago
8

Good morning everyone! How are yall?

Mathematics
2 answers:
GuDViN [60]3 years ago
3 0

good how bout u? what up bro

svlad2 [7]3 years ago
3 0
Good what about you? I’m really tired though
You might be interested in
How many terms are in the algebraic expression 3x^2 + 4y - 1
ElenaW [278]

Answer:

3

Step-by-step explanation:  There are 3 terms there

4 0
3 years ago
Read 2 more answers
1. Verizon Wireless would like to estimate the proportion of households that use cell phones for their phone service without a l
Pavel [41]

Answer:

The 95% confidence interval for the true proportion of households which rely strictly on cell phones for their phone serviceis (0.2453, 0.3947).

Step-by-step explanation:

In a sample with a number n of people surveyed with a probability of a success of \pi, and a confidence level of 1-\alpha, we have the following confidence interval of proportions.

\pi \pm z\sqrt{\frac{\pi(1-\pi)}{n}}

In which

z is the zscore that has a pvalue of 1 - \frac{\alpha}{2}.

A random sample of 150 households was selected and 48 relied strictly on cell phones for their service.

This means that n = 150, \pi = \frac{48}{150} = 0.32

95% confidence level

So \alpha = 0.05, z is the value of Z that has a pvalue of 1 - \frac{0.05}{2} = 0.975, so Z = 1.96.

The lower limit of this interval is:

\pi - z\sqrt{\frac{\pi(1-\pi)}{n}} = 0.32 - 1.96\sqrt{\frac{0.32*0.68}{150}} = 0.2453

The upper limit of this interval is:

\pi + z\sqrt{\frac{\pi(1-\pi)}{n}} = 0.32 + 1.96\sqrt{\frac{0.32*0.68}{150}} = 0.3947

The 95% confidence interval for the true proportion of households which rely strictly on cell phones for their phone serviceis (0.2453, 0.3947).

5 0
3 years ago
I need help finding the solution
Ilya [14]
<h3>Answer:  226 degrees</h3>

=====================================================

Explanation:

Notice the tickmarks on the segments in the diagram. This tells us that chords DC and CB are the same distance from the center. It furthermore means that DC and CB are the same length, and arcs DC and CB are the same measure

arc DC = arc CB

12x+7 = 18x-23

12x-18x = -23-7

-6x = -30

x = -30/(-6)

x = 5

---------------------

Use this x value to find the measure of arcs DC and CB

  • arc DC = 12x+7 = 12*5+7 = 67
  • arc CB = 18x-23 = 18*5-23 = 67

We get the same measure for each, which helps confirm we have the correct x value.

The two arcs in question add to 67+67 = 134 degrees. This is the measure of arc DCB. Subtract this from 360 to get the answer

arc DAB = 360-(arc DCB) = 360-134 = 226 degrees

I'm using the idea that (arc DCB) + (arc DAB) = 360 since the two arcs form a full circle.

7 0
3 years ago
Can you please answer all pls
jonny [76]
Top left is 96 degrees. top middle is 39 degrees. top right is 127 degrees. bottom left is 133. Bottom middle is 40 degrees. Bottom right is 61 degrees.
6 0
4 years ago
A pack of gum cost $0.80. If the tax is an additional 5%, what is the total INCLUDING<br> tax?
labwork [276]

Answer:

$0.84 I think is the answer

5 0
3 years ago
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