Please help . thank u

Mathematics

1 answer:

Ierofanga [76]3 years ago

5 0

Hi there!

The measure for the angle B is 13.

A complementary angle equals to 90 degrees. You add (2x + 10) and (3x + 15) and equal it to 90. Combine like terms and balance out the problem like a 2 step variable equations.

Hope this helps !

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Previous concepts

Normal distribution, is a "probability distribution that is symmetric about the mean, showing that data near the mean are more frequent in occurrence than data far from the mean".

The Z-score is "a numerical measurement used in statistics of a value's relationship to the mean (average) of a group of values, measured in terms of standard deviations from the mean".

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