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3 years ago

In the figure drawn below CBD,DBE, m ABE=90 which of the following statements is true?

Mathematics

1 answer:

nikitadnepr [17]3 years ago

5 0

<HBF = <GBF + <HBG

but

<GBF = <CBD (vertical angles)
< HBG = <DBE (vertical angles)

so
<HBF = <CBD + <DBE

Answer
A. <CBD + <DBE = <HBF

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Answer:

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Step-by-step explanation:

Given that:

The SAT scores have an average of 1200

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

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

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$P(\overline X > 1224) = P(Z > \dfrac{24 }{10} })$

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

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

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

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