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Tamiku [17]
3 years ago
5

Find the mean of the following number set: 89, 76, 85, 76, 77, 84

Mathematics
2 answers:
klio [65]3 years ago
6 0

Answer:

81.167~

Step-by-step explanation:

You can find the mean (or average) of a set of numbers by adding them together and dividing the sum by the amount of values there are.

In this case, there are 6 values.

The total sum of the six values is 487.

To receive the mean, divide 487 by 6.

Stella [2.4K]3 years ago
4 0

Answer:81.1

Step-by-step explanation:

mean:add all numers then divide by the amount of numbers u have

89+76+85+76+77+84=487

then divide by 6 which is 81.1111111111111111 but u write it without repeating or round it

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Please answer and explain how you did it.
alukav5142 [94]

Refer to the attached image.

Given: m \angle A = 65^\circ and measure of exterior angle at C = 117^\circ.

We have to determine the measure of angle B and angle BCA.

By applying exterior angle property of the triangle which states:

"An exterior angle of a triangle is equal to the sum of the opposite interior angles".

So, exterior angle C = m \angle A + m \angle B

117^\circ = 65^\circ+ m \angle B

m \angle B = 52^\circ

Now, applying angle sum property in triangle ABC which states:

"The sum of all the angles of a triangle is 180 degrees".

m \angle A + m \angle B + m \angle BCA = 180^\circ

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m \angle BCA = 180^\circ - 117^\circ

m \angle BCA =63^\circ

Therefore, the measure of m \angle B = 52^\circ and m \angle BCA =63^\circ.

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