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Nookie1986 [14]
4 years ago
7

What does m = in m/6 + 8=13 with work shown

Mathematics
1 answer:
Tom [10]4 years ago
8 0
Please excuse my sloppy writing but the answer is 30

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A superintendent of a school district conducted a survey to find out the level of job satisfaction among teachers. Out of 53 tea
frez [133]

Answer:

b. 1.15

Step-by-step explanation:

The z statistics is given by:

Z = \frac{X - p}{s}

In which X is the found proportion, p is the expected proportion, and s, which is the standard error is s = \sqrt{\frac{p(1-p)}{n}}

Out of 53 teachers who replied to the survey, 13 claim they are satisfied with their job.

This means that X = \frac{13}{53} = 0.2453

She find that the proportion of satisfied teachers nationally is 18.4%.

This means that p = 0.184

Standard error:

p = 0.184, n = 53.

So

s = \sqrt{\frac{0.184*0.816}{53}} = 0.0532

Z-statistic:

Z = \frac{X - p}{s}

Z = \frac{0.2453 - 0.184}{0.0532}

Z = 1.15

The correct answer is:

b. 1.15

5 0
4 years ago
Find the area of the triangle with the given measurements. Round the solution to the nearest hundredth if necessary. B = 105°, a
Akimi4 [234]

Answer:

The area of triangle is 110.10cm^{2}

Step-by-step explanation:

It is given that AB=19cm, BC=12cm and ∠B=105°

Now, Area of the triangle ABC=\frac{1}{2}acsinB

=\frac{1}{2}{\times}12{\times}19{\times}sin105^{\circ}

=6{\times}19{\times}(0.965)

=110.10cm^{2}

Thus, the area of triangle is 110.10cm^{2}

4 0
4 years ago
How to solve 5r/r+1=4-5/r+1
jenyasd209 [6]
MARK BRAINLIEST!!
So your solution is.
=−5
3 0
3 years ago
There are two possible triangles with the measures given for triangle ABC. b = 20.2, c = 18.3, C = 38°
inna [77]
Ok 
First use the sine rule to find one value

b / sin B = c / sin C
20.2 / sin B  =  18.3 / sin 38

sinB =  20.2 * sin 38  / 18.3   =  0.6796
m < B = 42.8 degrees

the other possible measure is 180 - 42.8 =  137.2 degrees
7 0
3 years ago
Read 2 more answers
A ski jumper begins a run from the top of a ramp that is
pickupchik [31]

Answer:

17.5m

Step-by-step explanation:

958.2 minus 23.9= 934.3

934.3 minus 951.8= - 17.5

the negative doesnt matter so you can take that away so the answer is 17.5

3 0
4 years ago
Read 2 more answers
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