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Nuetrik [128]
3 years ago
9

Help please! 10+ points!! Include a diagram and solution :)

Mathematics
2 answers:
devlian [24]3 years ago
7 0

Answer:

brainiest?

Step-by-step explanation:

Readme [11.4K]3 years ago
7 0

Answer:

A lighthouse is observed by a ship�s office on watch at an angle of 42 degree to the path of the ship.

At the next sighting the lighthouse is observed at an angle of 90 degree to the path of the ship.

The distance travel between sightings is 1800 m .

To the nearest meter, how far away is the ship to the lighthouse at this second sighting?

:

This situation, forms a right triangle, we can use the tangent of 42 degrees

where

side adjacent = 1800 m

side opposite = distance (d) from the ship to the lighthouse when the angle is 90

:

tan(42) = d%2F1800

d = .9004 * 1800

d ~ 1621 meters from the ship to the light

Step-by-step explanation:

A lighthouse is observed by a ship�s office on watch at an angle of 42 degree to the path of the ship. At the next sighting the lighthouse is observed at an angle of 90 degree to the path of the ship. The distance travel between sightings is 1800 m .To the nearest meter, how far away is the ship to the lighthouse at this second sighting?

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Identify the type I error and the type II error that corresponds to the given hypothesis. The proportion of people who write wit
SCORPION-xisa [38]

Answer:

Type I error is to Reject the claim that the proportion of people who write with their left hand is 0.29 when the proportion is actually 0.29.

Type II error is Fail to reject the claim that the proportion of people who write with their left hand is 0.29 when the proportion is different from 0.29.

Step-by-step explanation:

We are given the following hypothesis below;

Let p = <u><em>proportion of people who write with their left hand</em></u>

So, Null Hypothesis, H_0 : p = 0.22     {means that the proportion of people who write with their left hand is equal to 0.22}

Alternate Hypothesis, H_A : p \neq 0.22      {means that the proportion of people who write with their left hand is different from 0.22}

Now, Type I error states that we conclude that the null hypothesis is rejected when in fact the null hypothesis was actually true. Or in other words, it is the probability of rejecting a true hypothesis.

So, in our question; Type I error is to Reject the claim that the proportion of people who write with their left hand is 0.29 when the proportion is actually 0.29.

Type II error states that we conclude that the null hypothesis is accepted when in fact the null hypothesis was actually false. Or in other words, it is the probability of accepting a false hypothesis.

So, in our question; Type II error is Fail to reject the claim that the proportion of people who write with their left hand is 0.29 when the proportion is different from 0.29.

4 0
3 years ago
If f(x)= -3x-5 and g(x)= 4x-2 find (f+g)(x)
juin [17]

Known :

f(x) = -3x - 5

g(x) = 4x - 2

Asked :

(f+g)(x) = ...?

Answer :

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= (-3x + 4x) + (-5 - 2)

= x + (-7)

= <u>x </u><u>-</u><u> </u><u>7</u>

So, the value of (f+g)(x) is x - 7

<em>Hope </em><em>it </em><em>helpful </em><em>and </em><em>useful </em><em>:</em><em>)</em>

5 0
3 years ago
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Answer:

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Step-by-step explanation:

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Step-by-step explanation:

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What's the answer and the work
erma4kov [3.2K]
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