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sertanlavr [38]
2 years ago
14

QUESTION AND DIAGRAM IN PICTURE CORRECT ANSWER = BRAINLIEST

Mathematics
2 answers:
insens350 [35]2 years ago
7 0
It’s a or c I believe
hoa [83]2 years ago
5 0
<h3>Answer: Approximately 4.47 km</h3>

The exact answer is 2*sqrt(5) but I figured it makes more sense to represent distance in terms of the approximate value. Round that however you need to. Your teacher may or may not want you to include the units, so be sure to ask.

=============================================================

Explanation:

This is similar to the previous question I answered earlier. Draw a vertical line straight down from point X until you reach line YZ. Mark point W on this vertical line, and that's also on line YZ.

Point W is the midpoint of YZ, which cuts it in half.

Let's focus on triangle WXY. It's horizontal leg is 8/2 = 4 km. Let a = 4.

For that same triangle, the vertical leg is unknown. We'll call it h. So b = h.

The hypotenuse of this right triangle is YX = 6 km. Let c = 6.

---------------

We have

  • a = 4
  • b = h
  • c = 6

Use the pythagorean theorem from here

a^2 + b^2 = c^2

4^2 + h^2 = 6^2

16 + h^2 = 36

h^2 = 36-16

h^2 = 20

h = sqrt(20)

h = sqrt(4*5)

h = sqrt(4)*sqrt(5)

h = 2*sqrt(5) ..... exact

h = 4.47213595  ..... approximate

h = 4.47 km

The distance is roughly 4.47 km

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A certain bay with very high tides displays the following behavior. In one 12-h period the water starts at mean sea level, rises
Firdavs [7]

Answer:

the required equation is; y = 21 sin(πt/6)

Step-by-step explanation:

Given the data in the question;

Water rises above sea level = 21 ft

Water drops below sea level = 21 ft

so

maximum = 21 ft and also

minimum = 21 ft

Amplitude = ( maximum + minimum ) / 2

Amplitude = ( 21 + 21 ) / 2

Amplitude = ( 21 + 21 ) / 2 = 42/2 = 21 ft

Period = 12 hours

and we know that; period = 2π/b

so

12 = 2π/b

12b = 2π

b = 2π / 12

b = π/6

Standard equation for simple harmonic is; y = asin(bt)

we substitute

y = 21 sin(πt/6)

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3 years ago
Evaluate 5x-2w+t <br><br> Help needed!!
likoan [24]

the answer is the same

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vichka [17]

Answer:

7

Step-by-step explanation:

3 0
2 years ago
Shun is going to flip a fair coin 450 times.
Allisa [31]

Answer:

Close to around 225 times

Step-by-step explanation:

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A store sells toys in bulk. It sells wooden blocks for $5 a pound and plastic bricks for $10
Veseljchak [2.6K]

9514 1404 393

Answer:

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  • 4 # wooden blocks

Step-by-step explanation:

Let p represent the number of pounds of plastic bricks in the mix. Then the number of pounds of wooden blocks is (10-p), and the total cost is ...

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4 pounds of wooden blocks and 6 pounds of plastic bricks should be used to make a 10-lb mix worth $80.

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2 years ago
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