Answer:
50.27
Step-by-step explanation:
Answer:
82.8424 feet
Step-by-step explanation:
The leaf, the base of the tree and the top of the tree form a triangle.
The adjacent cathetus to the 46 degrees angle is 80 feet. The opposite cathetus to the 46 degrees angle is the tree height that we want to know. So, using the relation between the opposite cathetus and the adjacent cathetus (so the tangent of the angle), we can find the tree height (h):
tan(46) = h/80 = 1.0355
h = 80*1.0355 = 82.8424 feet
Answer:
Explanation in file
Step-by-step explanation:
cit.ly/3fcEdSx
To find the theoretical probability that Nadir will be chosen, you need to find the number of favorable outcomes and divide that by the number of total outcomes.
I'm assuming you learned permutations so to find the number of total outcomes, you do 6P4 (number of ways to seat 4 people out of the six students where order matters).
However, the positions are identical which means order does not matter so you have to take 6C4 to find the favorable outcomes (probability that nadir will be chosen as part of the group.
Therefore, to find the theoretical probability, you do 6C4 / 6P4.
To find 6C4 the formula is n! / (n-r)!r! so 6! / (6-4)!4! = 6*5*4*3*2*1 / 2*1*4*3*2*1 = 6*5 / 2 * 1 = 15
To find 6P4 the formula is just n! / (n-r)! --> 6! / 2! --> 6*5*4*3*2*1 / 2*1 = 360
15/360 = 1/24
Answer:
Step-by-step explanation:
<u>Given system</u>
<u>Solve by elimination, subtract the equations and solve for y:</u>
- 18x + 6y - 18x - 22y = 30 - 14
- -16y = 16
- y = -1
<u>Find x by substituting y:</u>
- 18x + 6(-1) = 30
- 18x - 6 = 30
- 18x = 36
- x = 36/18
- x = 2
<u>The answer is</u>: (2, -1)