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nlexa [21]
3 years ago
14

A beach has two floating docks. One is 650 meters east of the lifeguard stand. The other is 60° southeast and 750 meters from th

e lifeguard stand. Law of cosines: A triangle is created between a lifeguard stand and 2 floating docks. The distance from the lifeguard stand to one dock is 750 meters, and the distance to the second dock is 650 meters. The angle between the 2 sides is 60 degrees. Rounded to the nearest meter, what is the distance between the docks? Round to the nearest meter. 589 meters 705 meters 792 meters 861 meters
Mathematics
1 answer:
vovangra [49]3 years ago
7 0

Answer:

705 meters

Step-by-step explanation:

cos~60=\frac{650^2+750^2-d^2}{2 \times 650  \times 750} \\2 \times 650 \times 750 \times \frac{1}{2}=50^2(13^2+15^2)-d^2 \\487500=2500(169+225)-d^2\\487500=2500(394)-d^2\\487500=985000-d^2\\487500-985000=-d^2\\d^2=497500\\d=\sqrt{497500}\\or~d\approx705.337 \approx 705~meters

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Someone h e l p me on this it is geometry
ladessa [460]

BC = 6 km

<u>/</u><u> </u> ACB = 34°

AC = ?

cos 34° = \frac{BC}{AC}

=> 0.829 = \frac{6}{AC}

=> AC = \frac{6}{0.829}

=> AC = 7.23763570567

=> AC = 7 km

=> AC = 10 km\:\:\:\:\:\:\:\: (nearest tenth)

\\

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3 years ago
-20y + 15 = 2 - 16y + 11
shtirl [24]
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7 0
3 years ago
What is 10+5x60 .<br><br> A) 10<br> B)130<br> C)6767<br> D)4545454545
Lynna [10]

Answer:

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but it doesnt show as a possible answer from your list

Step-by-step explanation:

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then add 10 to 300

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7 0
3 years ago
Read 2 more answers
Does the table represent an exponential function? Explain.
Ede4ka [16]

Answer:

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Step-by-step explanation:

We have a set of ordered pairs of the form (x, y)

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This means that:

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This is: y_2=by_1y2=by1

Now we have this set of points {(-1, -5), (0, -3), (1, -1), (2, 1)}

Observe that:

\begin{gathered}\frac{y_2}{y_1}=\frac{-3}{-5}=\frac{3}{5}\\\\\frac{y_3}{y_2}=\frac{-1}{-3}=\frac{1}{3}\\\\\frac{3}{5}\neq \frac{1}{3}\end{gathered}y1y2=−5−3=53y2y3=−3−1=3153=31

Then the values of y are not multiplied by a constant amount "b"

5 0
3 years ago
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