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qaws [65]
3 years ago
9

A) Area: b) Perimeter: 13 cm add speaker notes

Mathematics
1 answer:
OLEGan [10]3 years ago
3 0

Answer:

area: 169

perimeter: 52

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Solve 2x+4 so that it has no solution
Mrrafil [7]
2x+4
/2. /2
X=2


I think that’s what your looking how to do
5 0
3 years ago
Water samples are taken from water used for cooling as it is being discharged from a power plant into a river. It has been deter
blondinia [14]

Answer:

The system of hypothesis for this case are:

Null hypothesis: \mu =150

Alternative hypothesis: \mu >150

A type of error I for this case would be reject the null hypothesis that the true mean is equal than 150 when actually is not true.

Step-by-step explanation:

Previous concepts

A hypothesis is defined as "a speculation or theory based on insufficient evidence that lends itself to further testing and experimentation. With further testing, a hypothesis can usually be proven true or false".  

The null hypothesis is defined as "a hypothesis that says there is no statistical significance between the two variables in the hypothesis. It is the hypothesis that the researcher is trying to disprove".  

The alternative hypothesis is "just the inverse, or opposite, of the null hypothesis. It is the hypothesis that researcher is trying to prove".  

Type I error, also known as a “false positive” is the error of rejecting a null  hypothesis when it is actually true. Can be interpreted as the error of no reject an  alternative hypothesis when the results can be  attributed not to the reality.  

Type II error, also known as a "false negative" is the error of not rejecting a null  hypothesis when the alternative hypothesis is the true. Can be interpreted as the error of failing to accept an alternative hypothesis when we don't have enough statistical power.  

Solution to the problem

The system of hypothesis for this case are:

Null hypothesis: \mu =150

Alternative hypothesis: \mu >150

A type of error I for this case would be reject the null hypothesis that the true mean is equal than 150 when actually is not true.

8 0
4 years ago
a local newspaper story reports that 8% of the 7968 students at the college work full time, how many students work full time
e-lub [12.9K]
It will be (7968*8)/100=637.44
3 0
3 years ago
35.
babunello [35]

Hi there! :)

Answer:

\huge\boxed{y = 4x - 2}

Given line with an equation of y = 4x + 3

Parallel lines contain equivalent slopes, so a parallel line to the given equation would contain a slope of m = 4.

Plug in the coordinates of the point given, along with the slope into the equation y = mx + b where:

m = slope

y = y-coordinate of point

x = x-coordinate of point

Solve for the 'b' value, or y-intercept:

y = mx + b

6 = 4(2) + b

6 = 8 + b

b = -2

Rewrite the equation as slope-intercept form:

y = 4x - 2

4 0
3 years ago
Read 2 more answers
I need help with this one
andreyandreev [35.5K]

The value of x from the given figure is 8

<h3>How to calculate the interior angle of a triangle</h3>

A triangle is a 2-dimensional shape with 3 sides an interior angle

Since the sum of the interior angles of a triangle is 180 degrees, hence;

8x - 4 + 76 + 44 = 180

8x + 116 = 180

8x = 180 - 116

8x = 64

x = 64/8

x = 8

Hence the value of x from the given figure is 8

Learn more on interior angle of a triangle here: brainly.com/question/8611232

4 0
3 years ago
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