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Semmy [17]
2 years ago
12

A tree is casting a shadow that is 6.2 meters long. The distance from the end of the shadow to the top of the tree is 7.5 meters

. How tall is the tree? Round to the nearest tenth if necessary.
Mathematics
2 answers:
dmitriy555 [2]2 years ago
4 0

Answer:

13.7

Step-by-step explanation:

I did a test on this i got it correct

katrin [286]2 years ago
3 0

Answer:

<u><em>4. metres (approx)</em></u>

Step-by-step explanation:

The given situation can be illustrated as a picture which I have attached to the answer for better understanding.

As you can notice, the situation can be modeled as a right triangle.

Use the Pythagorean theorem to find the value of leg h, as follow:

h=\sqrt[]{(7.5m)^{2} - (6.2m)^{2}} \\h=\sqrt{56.25m^{2} - 38.44m^{2}}\\h=\sqrt{17.81m^{2} } \\h= 4.2 m

Rounding of the answer :  4 meters

<u><em>Hence, the height of the tree is approximately 4m.</em></u>

<u><em>Please mark me as brainliest if you found this helpful.</em></u>

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The radius of a circle is 2.9 in. Find the circumference to the nearest tenth.
ELEN [110]

Answer:

\bf \large 20 \: inches

Step-by-step explanation:

<h2>Given that :</h2>

  • The radius of a circle is 2.9 in.

<h2>to find :</h2>

  • Find the circumference to the nearest tenth.

<h2>formulas used :</h2>

  • circumference = 2 × π × r

where,

  • π = 22/7
  • r = 2•9 inches

<h2>explanation :</h2>

⟼ c = 2πr

⟼ c = 2 × 22/7 × 2•9 inches

⟼ c = 2 × 3•14 × 2•9 inches

⟼ c = 6•28 × 2•9 inches

⟼ c = 18•21 inches.

<h2>Round to the nearest tenth :</h2>

⟼ c = 18•21 inches

⟼ c = 20 inches

∴ circle circumference is 20 inches .

3 0
3 years ago
State of the triangles in each pair of similar. If so, State how you know they are similar and complete the similarity statement
Vinil7 [7]

Answer:

  b.  not similar

Step-by-step explanation:

The given sides* have the ratio 30:39 = 10:13 in one triangle and the ratio 20:27 = 10:13.5 in the other triangle. Since these ratios are different, the triangles cannot be similar.

____

* These are the sides bracketing the vertical angles at T. If the triangles were similar, the three sides would have to have the ratios 10 : 13 : 13.5.

However, the geometry shown would require that the angle opposite side 13.5 in one triangle have the same measure as the angle opposite side 13 in the other triangle. That is not possible, so it is not possible for these triangles to be similar.

6 0
3 years ago
Please help i will give brainliest but answer all!!
zloy xaker [14]

Answer:

19. reflection (-1, -3)

20. translation (5, -3)

21. translation (0, -5)

22. reflection (1, 3)

23. translation (5, 6)

24. reflection (1, 3)

Step-by-step explanation:

4 0
3 years ago
Screenshot included...Which expression is equivalent to the given expression?
seropon [69]
Answer should be A as both values in the expression need to be negative after expanding.
8 0
3 years ago
Read 2 more answers
Please help with both problems
erica [24]
Okay so i cant figure out the first one, but the second one looks like -7:3
8 0
3 years ago
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