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seraphim [82]
3 years ago
6

The angle of depression from D to F measures 40°. If DE = 100 m, find DF. Round your answer to the nearest tenth.

Mathematics
2 answers:
leva [86]3 years ago
7 0
You need to draw the triangle DEF with a right angle at E.  Angle D = 40 and DE = 100 m.  Once you have marked up your triangle, you can use cosine to find DF.  
sdas [7]3 years ago
3 0

The correct answer is 130.5


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Three friends went running.
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Answer:

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3 years ago
What is the slope of a line that passes through the points (-5,-3) and (9,-6)
kipiarov [429]
To find the slope given two points, you need to subtract the two y values over the two x values
(-5,-3)  (9,-6)
-5 will be x1, and -3 will be y1. 9 will be x2, and -6 will be y2. You then need to put the numbers in the correct place in the equation.
y2-y1      -6-(-3)     -9
-------- =   -------- =  ----
x2-x1       9-(-5)     14
Now that we have the slope (-9/14) you can use one of the coordinates to find the value of b.
Let's use (9,-6).
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+81/14
b=-3/14
Your final equation is y=-9/15x-3/14


7 0
3 years ago
Help me please!! I need this for my math test!!
Svetlanka [38]

Answer:

y=+3

Step-by-step explanation:

6 0
3 years ago
3<br> -3<br> 1/3<br> -1/3 <br><br> Please help
goldfiish [28.3K]

Im pretty sure the answer is 1/3

8 0
3 years ago
Read 2 more answers
Slove:33/29=46/x. Try to find the answer.
Tju [1.3M]

Answer:

x=40\frac{14}{33}

Step-by-step explanation:

we have

\frac{33}{29}=\frac{46}{x}

Solve for x

Multiply in cross

(33)(x)=(46)(29)

Divide by 33 both sides (Division Property of Equality)

x=46(29)/33

x=\frac{1,334}{33}

Convert to mixed number

x=\frac{1,334}{33}=\frac{1,320}{33}+\frac{14}{33}=40\frac{14}{33}

5 0
3 years ago
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