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denpristay [2]
2 years ago
11

In the diagram below, BE ~ BC, mLC = 32° and m/BFD = 103°. Find m

Mathematics
1 answer:
steposvetlana [31]2 years ago
5 0

Answer:

Here's a rainbow of logic.

Step-by-step explanation:

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40 POINTS PLEASE HELPPPPPPP ME !
IrinaK [193]

Answer:

75/100

=15/20

3/4

The probability is3/4

Step-by-step explanation:

6 0
3 years ago
Read 2 more answers
If 1 inch represents 10 miles how many inches will 900 miles​
frozen [14]

Answer:

90 inches

Step-by-step explanation:

900 divided by 10 = 90

5 0
3 years ago
The state education commission wants to estimate the fraction of tenth grade students that have reading skills at or below the e
Korolek [52]

Answer:

A sample of 499 is needed.

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}.

The margin of error is given by:

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

In this question, we have that:

\pi = 0.21

90% confidence level

So \alpha = 0.1, z is the value of Z that has a pvalue of 1 - \frac{0.1}{2} = 0.95, so Z = 1.645.

How large a sample would be required in order to estimate the fraction of tenth graders reading at or below the eighth grade level at the 90% confidence level with an error of at most 0.03

We need a sample of n, which is found when M = 0.03. So

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

0.03 = 1.645\sqrt{\frac{0.21*0.79}{n}}

0.03\sqrt{n} = 1.645\sqrt{0.21*0.79}

\sqrt{n} = \frac{1.645\sqrt{0.21*0.79}}{0.03}

(\sqrt{n})^2 = (\frac{1.645\sqrt{0.21*0.79}}{0.03})^2

n = 498.81

Rounding up

A sample of 499 is needed.

8 0
3 years ago
How do you graph y equals 3 over 2x -4
lesya692 [45]

Answer:

Step-by-step explanation:

3/2 is the slope in y=mx+b format

b= y-intercept witch would be -4 sense it is subtracting not adding

m=slope witch is 3/2

x=x-axis

8 0
3 years ago
Emerson struck out 112 times in 350 at bats complete the proportion to represent the percent of strike outs per at bats
Mrac [35]

Answer:

Percent of strike outs per-bat = 32%

Step-by-step explanation:

Given:

Number of balls strike out = 112

Total number of ball played = 350

Find:

Percent of strike outs per-bat

Computation:

Percent of strike outs per-bat = [112/350]100

Percent of strike outs per-bat = [0.32]100

Percent of strike outs per-bat = 32%

3 0
2 years ago
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