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2 years ago

The ratio measures of two complementary angles is 5:4. what is the measure of the lager angle

Mathematics

1 answer:

Aloiza [94]2 years ago

4 0

Answer:

5=50

4=40

Step-by-step explanation:

the angles are 5x and 4x because 5x:4x is 5:4

And it is equal to 90

5x + 4x = 90

9x=90

x=10

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Answer:

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3 years ago

The SAT scores have an average of 1200 with a standard deviation of 60. A sample of 36 scores is selected. a) What is the probab

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Answer:

the probability that the sample mean will be larger than 1224 is 0.0082

Step-by-step explanation:

Given that:

The SAT scores have an average of 1200

with a standard deviation of 60

also; a sample of 36 scores is selected

The objective is to determine the probability that the sample mean will be larger than 1224

Assuming X to be the random variable that represents the SAT score of each student.

This implies that ;

$S \sim N ( 1200,60)$

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$P(\overline X > 1224) = P(Z > \dfrac{1224- 1200 }{\dfrac{60}{\sqrt{36}} })$

$P(\overline X > 1224) = P(Z > \dfrac{24 }{\dfrac{60}{6} })$

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$P(\overline X > 1224) =1 - P(Z \leq 2.4 })$

From Excel Table ; Using the formula (=NORMDIST(2.4))

P(\overline X > 1224) = 1 - 0.9918

P(\overline X > 1224) = 0.0082

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The ratio measures of two complementary angles is 5:4. what is the measure of the lager angle ​

The ratio measures of two complementary angles is 5:4. what is the measure of the lager angle