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AnnZ [28]
3 years ago
9

A helicopter hovers 1450 feet above a small island. The figure shows that the angle of depression from the helicopter to point P

is 41 How far off the​ coast, to the nearest​ foot, is the​ island?
Mathematics
1 answer:
puteri [66]3 years ago
5 0

Answer:

1668 feet.

Step-by-step explanation:

We know the opposite side of the right triangle and we need the adjacent side, so we use the tangent function.

If the distance required is x  (adj side) we have:

tan 41 = opp/adj

tan 41 = 1450/x

x = 1450 / tan 41

= 1668.03

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Point slope equations
Sholpan [36]

Answer:

The point slope equation is: y - y1 = m (x - x1)

m = slope

Step-by-step explanation:

To use this equation, you need to know:

-<u> </u><u>one point on the line</u>

-<u> the slope of the line</u>

<u>First</u>:

(x1,y1) = a known point on the line

m = the slope

(x,y) = any other point on the line

<u>Now</u>:

we plug the numbers into the equation to get y - y1 = m (x - x1)

<u>Then</u>:

you solve the equation

4 0
4 years ago
Can someone tell me if these answers are right or not? These problems are getting on my nerves!
Bond [772]
1a. 3^1 / 3^2 = 3^1-2 = 3^-1 = 1/3^1 = 1/3.
2b. 4^2 / 4^4 = 4^2-4 = 4^-2 = 1/4^2.
3c. 6^3/6^5 = 6^3-5 = 6^-2 = 1/6^2.
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I believe for the last question its asking only to rewrite exponent as a positive exponent similar to the first question.
6 0
3 years ago
Grandma bakes the world's best and favorite cookies. If grandma's cookies have a half life of 2 hours and she bakes 3 dozen cook
Alchen [17]

Answer:

The time that pass until only two cookies left is 1.89 hour

Step-by-step explanation:

Given as :

The number of cookies bakes in 2 hours = 3 dozen

∵ 1 dozen = 12 piece

So, In 3 dozen = 12 × 3 = 36 cookies

The Time required to bake 36 cookies = 2 hours

Now, Let The time required to bake 2 cookies = x hour

So, According to question

∵ The time required to bake 36 cookies = 2 hours

So, the time required to bake 1 cookies = \frac{2}{36} = \frac{1}{18} hour

∴The time required to bake 34 cookies =  \frac{1}{18} × 34

I.e The time required to bake 34 cookies = \frac{34}{18} hour = 1.89 hour

Or, the time taken is 1.89 hours

Hence The time that pass until only two cookies left is 1.89 hour Answer

5 0
3 years ago
Peter sold watches ($7) and necklaces ($4) at a flea market. Total sales were $300. People bought 3 times as many watches as nec
Maslowich
<span>36*7=252
21*4=48
total is $300
 12 necklaces and 36 watches.</span>
5 0
4 years ago
Find are of the composite figure.
Tasya [4]

Answer:

its number d.  my 1/8 brain cell said so.

Step-by-step explanation:

7 0
3 years ago
Read 2 more answers
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