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3 years ago

Solve for x. Round to the nearest tenth, if necessary.

Mathematics

1 answer:

quester [9]3 years ago

4 0

Answer:

x ≈ 1.1

Step-by-step explanation:

The hypotenuse and the side adjacent to the angle are marked, so the relevant trig relation is ...

Cos = Adjacent/Hypotenuse

cos(41°) = 0.8/x . . . . . . given values filled into the relation

x = 0.8/cos(41°) . . . . . solve for x

x ≈ 1.0600104 ≈ 1.1 . . . . rounded to tenths

x = 1.1

_____

<em>Additional comment</em>

This cosine relation is one of three relations covered by the mnemonic SOH CAH TOA. It also reminds you ...

Sin = Opposite/Hypotenuse

Tan = Opposite/Adjacent

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Bas_tet [7]

Answer:

The upper limit for the 95% confidence interval for the population proportion of defective gaming systems is 0.022

Step-by-step explanation:

Upper Limit for 95% Confidence Interval can be calculated using p+ME where

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ME is the margin of error from the mean

and margin of error (ME) around the mean can be found using the formula

ME= $\frac{z*\sqrt{p*(1-p)}}{\sqrt{N} }$ where

z is the statistic of 95% confidence level (1.96)

p is the sample proportion ( $\frac{18}{1200}=0.015$

N is the sample size (1200)

Using the numbers we get:

ME= $\frac{1.96*\sqrt{0.015*0.985}}{\sqrt{1200} }$ ≈ 0.007

Then upper limit for the population proportion is 0.015+0.007 =0.022

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4 years ago

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3 years ago

Can someone help me with this question?

KonstantinChe [14]

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3 years ago

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Dahasolnce [82]

Step-by-step explanation:

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