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Paraphin [41]
3 years ago
5

You are standing 40 meters from the base of a tree that leans 8o away from you. The angle of elevation from you to the top of th

e tree is 20o. Find the slant height of the tree.

Mathematics
1 answer:
Y_Kistochka [10]3 years ago
3 0

Answer:

the height of the tree is <em>15.49 m</em>

<em></em>

Step-by-step explanation:

Step 1:

From the figure, we can determine ∠ATB by using the fact that the sum of all the angles in a triangle add up to 180°:

∠ ATB  = 180° - 98° - 20°

∠ ATB = 62°

Step 2:

Therefore, using the law of sines, we can determine the height of the tree.

TB / sin(20°)  = 40 / sin(62°)

TB = 40 × (sin(20°) / sin(62°))

<em>TB = 15.49 m </em>

<em></em>

Therefore, the height of the tree is <em>15.49 m</em>

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NOTE: Angles not necessarily drawn to scale.
jeka57 [31]

Answer:

x = 45°

Step-by-step explanation:

<u>Vertical Angle Theorem</u>

When two <u>straight lines intersect</u>, they form two pairs of angles.  The vertically opposite (non-adjacent) angles are <u>congruent</u> (equal).

From inspection of the given diagram, the <u>straight line with points C and D</u> and the <u>straight line with points F and G</u> intersect at <u>point E</u>.

Therefore, angles ∠FEC and ∠DEG are vertically opposite, and so they are equal.

From inspection of the diagram:

  • ∠FEC = x°
  • ∠DEG = 20° + 25° = 45°

Therefore:

⇒ ∠FEC =∠DEG

⇒  x = 45°

6 0
1 year ago
What is the likelihood the next crayon randomly selected will be yellow
tamaranim1 [39]
So.... there are 10 crayons and 8 are yellow.  

This means that 8/10 of the crayons are yellow.  

So the chance of picking a yellow one is 80%.  


To get this, you need to do 8/10 and make it over 100, which is 80/100.  Then, you turn this number into a percent by just dropping the 100 and adding a % to 80 (it's this easy if the bottom denominator is 100) 

The work should look something like this;

8:10
8/10
80/100
80%

So, there is an 80% chance that the crayon you pick will be yellow.  Any questions?
6 0
3 years ago
Find the slope of the line whose equation is 17 + 3y = 7x.-7/317/3
Anastaziya [24]

Slope is 7/3

Step-by-step explanation:

  • Step 1: The equation of the line is 17 + 3y = 7x. Find the slope.

Slope intercept form is y = mx + b, where m is the slope.

⇒ 17 + 3y = 7x

⇒ 3y = 7x - 17

⇒ y = 7/3 x - 17/3

m = 7/3

⇒ Slope is 7/3

4 0
3 years ago
What goes inside the table
Tomtit [17]

Basically what you have to do is take the x which for the first question would be -2 and you would subtract it by 1 and you would get -1and then you would do the same thing so on and so forth.

If that doesn't help then just plug the X into the equation

5 0
2 years ago
Emma needs 2 pounds of ground meat to make a meatloaf. She goes to Brodies and finds one package of meatloaf with 2.56 pounds an
rusak2 [61]

Answer:

package with 2.09 pounds

Step-by-step explanation:

When rounding to the nearest whole number, if the first number after the decimal point is equal or greater than 5, add 1 to the number before the decimal. If this is not the case, add 0 to the number before the decimal point.

to round 2.56 to the nearest whole number equals 3.

While to round 2.09 to the nearest whole number equals 2.

Because Emma needs 2 pounds, she would go with 2.09 pounds

4 0
2 years ago
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