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algol [13]
3 years ago
13

Triangle ABC is a right triangle and sin(53o) = . Solve for x and round to the nearest whole number.

Mathematics
1 answer:
kozerog [31]3 years ago
6 0
A diagram would be nice.  If this is a right triangle, and one acute angle is 53 deg, then the other is 37 deg.  You don't specify any dimensions, so all you can do is use theoretical values here.

If x is opposite the 53 deg angle, and the length of the hypotenuse is h, then side x has length h(sin 53 deg) = 0.799h.
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Answer:

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Cloud [144]

The true average strain in a way that conveys information about precision and reliability is 27.314.

Given that sample size is 20, mean is 26%, standard deviation is 3.4, confidence level is 95%.

We have to calculate the true average strain in a way that conveys information about precision and reliability.

We have to use t test in our problem because sample size is less than 30.

Weknow that,

t=x bar-μ/s\sqrt{n}

where μ is sample mean,

s is sample standard deviation.

Degree of freedom=n-1

=20-1

=19

T value at 95% confidence interval=1.7281

put the values in the formula of t given above.

1.7291=x bar-26/3.4/\sqrt{20}

1.7291=xbar-26/3.4/4.47

1.7291= x bar-26/0.76

1.7291*0.76=x bar-26

1.314=x bar-26

x bar=26+1.314

x bar=27.314

After rounding it will be 27.31

Hence the true average strain in a way that conveys information about precision and reliability is 27.31%.

Learn more about t test at brainly.com/question/6589776

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