Check the picture below.
so let's use the law of sines then
![\textit{Law of sines} \\\\ \cfrac{sin(\measuredangle A)}{a}=\cfrac{sin(\measuredangle B)}{b}=\cfrac{sin(\measuredangle C)}{c} \\\\[-0.35em] ~\dotfill\\\\ \cfrac{1.9}{sin(Z)}~~ = ~~\cfrac{XZ}{sin(Y)}\implies \cfrac{1.9}{sin(89^o)}~~ = ~~\cfrac{XZ}{sin(70^o)}\implies \cfrac{1.9\cdot sin(70^o)}{sin(89^o)}=XZ \\\\[-0.35em] ~\dotfill](https://tex.z-dn.net/?f=%5Ctextit%7BLaw%20of%20sines%7D%20%5C%5C%5C%5C%20%5Ccfrac%7Bsin%28%5Cmeasuredangle%20A%29%7D%7Ba%7D%3D%5Ccfrac%7Bsin%28%5Cmeasuredangle%20B%29%7D%7Bb%7D%3D%5Ccfrac%7Bsin%28%5Cmeasuredangle%20C%29%7D%7Bc%7D%20%5C%5C%5C%5C%5B-0.35em%5D%20~%5Cdotfill%5C%5C%5C%5C%20%5Ccfrac%7B1.9%7D%7Bsin%28Z%29%7D~~%20%3D%20~~%5Ccfrac%7BXZ%7D%7Bsin%28Y%29%7D%5Cimplies%20%5Ccfrac%7B1.9%7D%7Bsin%2889%5Eo%29%7D~~%20%3D%20~~%5Ccfrac%7BXZ%7D%7Bsin%2870%5Eo%29%7D%5Cimplies%20%5Ccfrac%7B1.9%5Ccdot%20sin%2870%5Eo%29%7D%7Bsin%2889%5Eo%29%7D%3DXZ%20%5C%5C%5C%5C%5B-0.35em%5D%20~%5Cdotfill)
quick observation, the picture of the triangle is very misleading, since those angles as drawn are not good representers of the angles values.
D it would be in the 5 thousands but you have to divide pi out of it
There is a 1/2 chance of landing heads.
There is a 3/6 or 1/2 chance of landing on an even number (2,4, or 6)
1/2*1/2= 1/4
The probability of landing heads and an even number is 1/4.
Answer:
3
Step-by-step explanation:
The height of the building is 19.02 feet, for a 20-ft ladder to lean against the building at an angle of 72 degrees.
<h3>What is an
equation?</h3>
An equation is an expression that shows the relationship between two or more variables and numbers.
Trigonometric ratio is used to show the relationship between the sides and angles of a right angle triangle.
Let h represent the height of the building, hence:
sin(72) = h/20
h = 19.02 feet
The height of the building is 19.02 feet, for a 20-ft ladder to lean against the building at an angle of 72 degrees.
Find out more on equation at: brainly.com/question/13763238
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