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3 years ago

WHAT WOULD THIS BE? I DONT UNDERSTAND IT

Mathematics

1 answer:

maw [93]3 years ago

7 0

Answer:

The answer would be x=7.3 cm

Step-by-step explanation:

Since you are using the angle of 20 degrees and you have the measure of 10 cm for its adjacent side, solving for x would mean you would use tan.

20=x/10

10*20tan=x

200tan=x

7.279404......=x

But when you do 200 tan on the calculator, you have to make sure you press the equal sign after.

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Answer:

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Step-by-step explanation:

y=3x x=2

y=3(2)

y=6

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Step-by-step explanation:

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3 years ago

An airline promotion to business travelers is based on the assumption that two-thirds of business travelers use a laptop compute

skad [1K]

Answer:

The null hypothesis is $H_o : p = 0.67$

The alternative hypothesis is $H_a : p \ne 0.67$

The sample proportion is $\^ p = 0.65$

Step-by-step explanation:

From the question we are told that

The sample size is n = 546

The number of people that use a laptop overnight is $k = 355$

The population proportion is $p = \frac{2}{3} = 0.67$

Generally

The null hypothesis is $H_o : p = 0.67$

The alternative hypothesis is $H_a : p \ne 0.67$

Gnerally the sample proportion is mathematically represented as

$\^ p = \frac{ k}{n}$

=> $\^ p = \frac{ 355}{546}$

=> $\^ p = 0.65$

4 0

3 years ago