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Arlecino [84]
3 years ago
14

Someone please help me with this question. I've been stuck on it for almost 40 minutes. Here's the question. Lauren was standing

on the lifeguard stand on the beach trying to find her sister. She spotted her at the water's edge at an angle of depression of 12 degrees. If the stand is 5 yards above the sand, how far down the beach is Lauren's sister? Round your answer to the nearest yard.

Mathematics
1 answer:
Maurinko [17]3 years ago
5 0

Answer:

24 yd

Step-by-step explanation:

Treat x as the desired quantity.  This x is the side of the triangle adjacent to the lower 12 degree angle.  The side opposite this angle is 5 yds.  Using the definition of the tangent,

tan 12 degrees = opp / adj = 5 yds / x

Then x = (5 yds) / (tan 12 degrees), or x = (5 yds) / 0.213

Then x =  24 yds (to the nearest yd)

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PLEASE HELP!! and, thanks so much @sparkssparkles001, @justicehall2002, @tiffanieonderdock123, @graywoods for answering the past
natali 33 [55]

Answer:

C) 120 square feet

Step-by-step explanation:

Note that the bed is in the shape of a <em>triangle</em>. You are also finding the area of the bed (Use the formula Area = 1/2(base * height)).

The base = 20, height = 12. Plug in the corresponding numbers to the corresponding variable.

A = 1/2(20)(12)

Simplify.

A = 1/2(20)(12)

A = (20 * 12)/2

A = (10 * 12)

A = 120

C) 120 square feet is your answer.

~

*Good luck!

4 0
3 years ago
which expression is equivalent to 5(2x - 7) A. 2x - 35 B. 7x - 2 C. 7x - 12 D. 10x - 7 or E. 10x - 35
seraphim [82]
<span>5(2x - 7)
= 10x - 35

answer
</span><span>E. 10x - 35</span>
4 0
3 years ago
5. A car wash uses 50 gallons of water every
ira [324]

Answer:

1.25 gallons per second

Step-by-step explanation:

To figure this out divide 50 by 40

I don't know how to explain this further, hope this is good enough.

- Que

7 0
3 years ago
Read 2 more answers
A rocket is launched in the air. The graph below shows the height of the rocket hh in meters after tt seconds.
fgiga [73]

Answer:

The answers are=

  1. (38, 0)
  2. time
  3. in seconds
  4. (19, 1768.9)
  5. Height
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3 0
2 years ago
Find the value of this expression if x=-1
tatiyna

Answer:

2

Step-by-step explanation:

-1^2+7

1+7 =8

-1 +5 =4

8/4  =2

5 0
3 years ago
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