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qwelly [4]
3 years ago
5

Find ln 5.1 to the nearest thousandth

Mathematics
1 answer:
LenKa [72]3 years ago
8 0

Answer:

5.1.

Step-by-step explanation:

5.1 = 5.1000. You would then round down to find the nearest thousandth, which is 5.1.

Hope this helps!

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A source of laser light sends rays AB and AC toward two opposite walls of a hall. The light rays strike the walls at points B an
Nataly [62]

Answer:

The distance between the walls is 70 m.

Step-by-step explanation:

Given: A source of laser light is at point A on the ground between two parallel walls BE and CD . The walls are perpendicular to the ground that is

BE ⊥ ED and CD ⊥ ED

AB is a ray of light which strikes the wall on the left at point B which is 30 meters above the ground. that is BE = 30 m

AC is a ray of light which strikes the wall on the right at point C. The length of AC = 80 meters.

The ray AB makes an angle of 45 degrees with the ground that is m∠BAE = 45°

The ray AC makes an angle of 60 degrees with the ground that is m∠CAD = 60°

As shown is figure attached below.

WE have to find the distance between the walls that is Length of ED

Length of ED = EA + AD

Consider the Δ AEB,

Using trigonometric ratio,

\tan\theta=\frac{perpendicular}{base}

Here \theta=45^{\circ} , perpendicular = 30 m  and base we can find.

thus,

\tan 45^{\circ}=\frac{30}{EA}

We know \tan 45^{\circ}=1

thus, EA =  30 m

Consider the Δ AEB,

Using trigonometric ratio,

\cos\theta=\frac{base}{hypotenuse}

Here \theta=60^{\circ} , hypotenuse = 80 m  and base we can find.

thus, \cos 60^{\circ}=\frac{base}{80}

We know, \cos 60^{\circ}=\frac{1}{2}

thus, Base = 40 m

AD = 40 m

Thus, the distance between the walls that is the length of ED = 30 + 40 = 70 m

4 0
3 years ago
Please help This is <br> Solve percent problems, part 1 on I-ready
Olenka [21]

Answer:

70/100 (58)

0.70 (58)

Step-by-step explanation:

5 0
3 years ago
I have a photo up could someone answer two?
dedylja [7]
The answer to number 2 is g.15
3 0
2 years ago
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Sasha’s daily tips this work week were $43, $32, $65, $88, $50, and $72. Is Sasha correct in thinking that the mean accurately r
Marizza181 [45]
B is your answer !!!
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3 years ago
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What is a set of numbers that have the same mean, median, and range. All positive whole numbers. Thank you so much in advance! :
gregori [183]

Answer:

One such example of the data is { 1, 1 ,2}

Step-by-step explanation:

1) Mean of  a data = \frac{\textrm{Sumof observations}}{\textrm{Total  number of observations}}

2)  Median =  The middle value of the given data when data is arranged is ascending order.

3)  Range of  a data = Highest value - Lowest value

here, let the data be { 1, 1, 2)

So, 1)  Mean = \frac{1+ 1+2}{3}  = \frac{3}{3}  = 1

     2) Median = 1

     3)  Range = Highest value - Lowest value

                   = 2 -1 = 1

Here,  in all the cases the answers is same = 1

Hence, one such example of the data is { 1, 1 ,2}

3 0
3 years ago
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