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prisoha [69]
3 years ago
13

What is the mean of the following set of numbers? 121, 347, 45, 21, 300, 614, 312, 333, 421

Mathematics
2 answers:
Norma-Jean [14]3 years ago
5 0
The mean is 279.3 repeating.
ivann1987 [24]3 years ago
3 0
To find the mean of a data set you need to add up all the numbers and then divide by the number of data. So, the mean (answer) is 279.333333333.
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Robert invests $3,250 into a money market account with an annual 1.7% simple interest rate. If he does not add or subtract any m
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A quadrilateral has two angles that measure 222° and 81°. The other two angles are in a ratio of 6:13. What are the measures of
hram777 [196]

\sf\huge\underline{\star Solution:-}

\rightarrow <u>Ratio of two angles are 6:13.</u>

So, let the one angle be \sf{6x} and another be \sf{13x.}

As we know that,

Sum of all interior angles of a quadrilateral = \sf\pink{360°.}

So let's sum up the given angles,

\rightarrow \sf{222°+81°+6x+13x \:=\:  360°}

\rightarrow \sf{303+19x \:=\:  360°}

\rightarrow \sf{19x \:=\:  360-303}

\rightarrow \sf{19x \:=\:  57}

\rightarrow \sf{x \:=\:  \frac{19}{57}}

\rightarrow \sf{x \:=\:  3}

Hence, \sf{x \:=\:  3}

So, First angle \sf{= \:6x\: = \:6×3 \:=} \sf\purple{18°.}

Second angle \sf{= \:13x\: = \:13×3 \:=} \sf\purple{39°.}

_________________________________

Hope it helps you:)

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It would be a rotation I believe
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