Answer:
EC = 8/9 ft
Step-by-step explanation:
ΔADE ≈ ΔABC
set up a proportion based on corresponding sides
AD/AE = AB/AC
9/4 = 11/(4 + EC)
9(4 + EC) = 44
36 + 9EC = 44
9EC = 8
EC = 8/9
Answer:
here
Step-by-step explanation:
1. point slope
2. standard form
3. slope intercept
Hope this helps!
A binomial probability density function should be used to represent the probability
<h3>How to determine the type of
probability density?</h3>
The given parameters are:
- Proportion that plays sport, p = 32%
- Number of students selected, p = 50
- The probability, P = (x ≤ 15)
The proportion that plays sport indicates that
68% of the students do not play sport
So, we have two events, which are
- Play sport
- Do not play sport
When there are two possible events, then the binomial probability density function should be used
Read more about binomial probability density at:
brainly.com/question/15246027
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Answer:
X= 2/5 y=-2
Step-by-step explanation:
5x + 2y = -2
3x - 5y = 11.2
Using the elimination method
Multiply equation 1 by 3
Multiply equation 2 by 5
15x + 6y = -6
15x - 25y = 56
Subtrat 3 from 4
-31y= 62
Divide both sides by -31
y= -2
To arrive at x, substitute y= -2 in equation 1
5x + 2y = -2
5x + 2(-2)= -2
5x -4 = -2
Collect like terms
5x= -2+4
5x= 2
Divide both sides by 5
x= 2/5