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quester [9]
3 years ago
12

a boy is standing 180 metres from the base of a tree. the angle of elevation to the top of the tree is 40°. what is the height o

f the tree?​
Mathematics
1 answer:
san4es73 [151]3 years ago
3 0

Answer:

the height of the tree is about 151 meters

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How do the gcf and the lcm help you when multiplying and adding or subracting fractions
kari74 [83]
<h3>Explanation:</h3>

GCF: the greatest common factor of numerator and denominator is a factor that can be removed to reduce the fraction.

  <em>Example</em>

The numerator and denominator of 6/8 have GCF of 2:

  6/8 = (2·3)/(2·4)

The fraction can be reduced by canceling those factors.

  (2·3)/(2·4) = (2/2)·(3/4) = 1·(3/4) = 3/4

___

LCM: the least common multiple of the denominators is suitable as a common denominator. Addition and subtraction are easily performed on the numerators when the denominator is common.

  <em>Example</em>

The fractions 2/3 and 1/5 can be added using a common denominator of LCM(3, 5) = 15.

  2/3 + 1/5 = 10/15 + 3/15 = (10+3)/15 = 13/15

4 0
3 years ago
Don't understand question and don't know formula
zzz [600]
The formula is (number of sides-2)*180 over number of sides

Each angle for hexagon is 120degree because
(6-2)*180 over 6 equals to 120
So p is 120
For q:
2q=180-120
2q=60
q=60 over 2
q=30
P+Q=120+30
=150
7 0
2 years ago
Find the geometric mean between the pair of numbers 9 and 36
Degger [83]

Answer:18

Step-by-step explanation:

9/x = x/36

x^2 = 324

x=18

5 0
3 years ago
Help please and thank you!
9966 [12]

Answer:

x = 29°

Step-by-step explanation:

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