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Paha777 [63]
4 years ago
14

Please help! 20 Points!

Mathematics
2 answers:
photoshop1234 [79]4 years ago
8 0
Marcy
The school and Marcy are on the same x axis on the grid at -3 whilst Henry is the opposite end of the axis. Thus on the x axis Marcy is closer
On the y axis Henry is closer as they are both on 8 and Marcy is on 2
However overall Marcy is closer as the difference between -3 and 4 is 7 and the difference between 2 and 8 is 6


Hope this is right And hope it helps!
Alex73 [517]4 years ago
5 0

The point of Henry's house is closer to the point of the middle school than Marcy's house. One way to justify is through the distance formula.

The distance between the middle school and Marcy's house is 10, while the distance between the middle school and Henry's house is 5. 

Henry's house is exactly 1/2 the distance from Marcy's house to the middle school.

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The length of a shadow of a tree is 150 feet when the angle of elevation of the sun is 39°. Approximate the height of the tree.
fomenos

Answer:

The height of tree is approximately 121.5 feet.

Step-by-step explanation:

We are given following in question:

Length of shadow = 150 feet

Angle of elevation of the sun =

\theta = 39^\circ

The tree and the shadow forms a right angled triangle.

Thus, with the help of trigonometric relation, we can write:

\tan \theta = \dfrac{\text{Height of tree}}{\text{Length of shadow}}

Let x feet be the height of tree.

Putting all the values, we get,

\tan 39^\circ = \dfrac{x}{150}\\\\0.80978 = \dfrac{x}{150}\\\\\Rightarrow x = 150\times 0.80978\\\Rightarrow x = 121.467 \approx 121.5

Thus, the height of tree is approximately 121.5 feet.

6 0
4 years ago
Someone please help me with this
WINSTONCH [101]

Answer:

<h2>download the app PHOTOMATH and right your solution</h2>

6 0
3 years ago
If P(A or B) = 0.8, P(A) = 0.3, and P(A and B)= 0.15, find P(B).
Dennis_Churaev [7]

9514 1404 393

Answer:

  P(B) = 0.65

Step-by-step explanation:

The appropriate formula is ...

  P(A or B) = P(A) +P(B) -P(A and B)

Then P(B) is ...

  P(B) = P(A or B) +P(A and B) -P(A)

  P(B) = 0.8 +0.15 -0.3

  P(B) = 0.65

7 0
3 years ago
Will mark first answer brainlest and will answer any of ur questions that I can!!!! PLEASE! I'm stuck! In exercises 4-9, conside
dedylja [7]

Answer:

A

Step-by-step explanation:

because it is probability

3 0
4 years ago
Please help me it’s really important to me
shepuryov [24]
1. b
2. e
3. a
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5. d
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hope this helps there is really no way of explaining you would have to study you theorems
7 0
3 years ago
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