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SpyIntel [72]
3 years ago
7

You are standing on the ground looking up at a bird’s nest in a tree. You estimate you are 8 meters from the tree. When looking

up at the nest, the angle of elevation from your eyes (eye line) to the bird’s nest is 40°. If the height from the ground to your eyes is 1.6 meters, determine the height of the tree.
Mathematics
1 answer:
slavikrds [6]3 years ago
7 0

Answer:

8.31m

Step-by-step explanation:

tan 40 = Opp/Adj

tan 40 = x/8

x = 8 tan 40

x = 6.71m

Plus 1.6m = 8.31m

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Directions: Find the volume of each figure. Round to the nearest tenth if necessary.
balu736 [363]

Answer:

Step-by-step explanation:

square-based pyramid:

volume V = (⅓)b²h

    = (⅓)7²·16  

    ≅ 261.3 ft³

:::::

Can't help with question 3. I haven't learned triangle-based pyramids.

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cone:

volume V = ⅓πr²h

              = ⅓π17²·20

              = 6052.8 yd³

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can't help with question 7. Never did this kind of pyramid.

3 0
2 years ago
Where does the last one go???
Nostrana [21]

Answer:

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Step-by-step explanation:

8 0
3 years ago
Can I get some help ???
Nikitich [7]

Answer is D. <em><u>288</u></em> . i am glad to help

4 0
3 years ago
Which of the binomials below is a factor of this expression 9x2 + 48xy + 64y2?
Soloha48 [4]

Answer:

3x+8y

Step-by-step explanation:

5 0
3 years ago
Eloise made a list of some multiples of 8/5 write 5 fractions that can be in Eloise list
alexgriva [62]
This question is asking for a list of fractions, that when you pull out common factors, they will all simplify back to the 8/5 fraction.

So if 2 is the common factor, you multiply the numerator and denominator by 2.

2: (8*2)/(5*2)= 16/10

3: (8*3)/5*3)= 24/15

4: (8*4)/(5*4)= 32/20

5: (8*5)/(5*5)= 40/25

10: (8*10)/5*10)= 80/50

Eloise's Potential List:
16/10, 24/15, 32/20, 40/25, 80/50

If you simplify any of these fractions above, you will get 8/5 again.

To work backwards:
80/50: 10 goes into 80, 10 goes into 50= 8/5

16/10: 2 goes into 16, 2 goes into 10= 8/5

Hope this helps! :)
4 0
3 years ago
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