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Karolina [17]
3 years ago
7

A hiker is making his way up a mountain. After resting for a night, he travels with a group toward the top of the mountain

Mathematics
1 answer:
andrezito [222]3 years ago
5 0

Answer:

I don´t understand

Step-by-step explanation: your thing does not make since

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how can you use the sine and cosine ratios and their inverses in calculations involving right triangles
Marysya12 [62]

Answer:

Step-by-step explanation:

I will show you by example.  For the sin ratio, we have that the sin of the reference angle is equal to the side opposite the angle over the hypotenuse of the right triangle.  We use this example for finding the ratio, knowing the angle:

sin(60)=.866025 found on your calculator.  Because this is a special angle in a right triangle, we can also say, by looking at a 60 degree reference angle that the side across from the angle measures square root of 3, and the hypotenuse measures 2.  So in terms of a radical,

sin(60)=\frac{\sqrt{3} }{2}

If we don't know the angle, we use the 2nd button on our calculator to find it.  For example, if our problem looked like this:

sin\theta=\frac{1}{2},

we are asked what angle has a sin ratio of 1/2.  We find this angle by pressing the 2nd button on our calculator, then the sin button and you will see this on your screen:

sin^{-1}(

Enter either a .5 or a 1/2 after that open parenthesis and hit enter and you'll get the angle measure.  That's how you use the inverses to solve for missing angles.

3 0
3 years ago
PLEASE PLEASE HELP WILL MARK BRAINLIEST
Rama09 [41]

Answer:

The answer is

\huge y = 3x + 21

Step-by-step explanation:

To find an equation of a line given the slope and a point we use the formula

y -  y_1 = m(x -  x_1)

where

m is the slope

( x1 , y1) is the point

From the question the point is (−5, 6) and slope = 3

The equation of the line is

y - 6  = 3(x + 5) \\ y - 6 = 3x + 15 \\ y = 3x + 15 + 6

We have the final answer as

y = 3x + 21

Hope this helps you

4 0
3 years ago
Read 2 more answers
Find f (8) when f (x)=-26/x+7
otez555 [7]

Answer:

-26/8+7=15/4 or 3 3/4

Step-by-step explanation:

3 0
3 years ago
In PQRS, PR and QS intersect at T. What additional information is needed to conclude that PQRS is a rectangle
lora16 [44]
If it's congruent and similar
5 0
3 years ago
Evaluate 14+ (- 2)<br> A) 12<br> B)- 12<br> C) 16<br> D)- 16
11111nata11111 [884]
The answer would be A.12 
6 0
3 years ago
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