We are asked to find the probability that the student sold 11-15 T-shirts or less than 6 T-shirts.
The total number of club members = 2 + 14 + 12 + 3 + 6 + 1 = 38
Probability of 11-15 T-shirts:
From the table, 3 club members bought 11 - 15 T-shirts.
So the probability is 3/38
Probability of less than 6 T-shirts:
Less than 6 T-shirts means 1 - 5 plus 0 T-shirts.
Form the table, 14 club members bought 1 - 5 T-shirts and 2 club members bought 0 T-shirts.
Total club member who bought 1 - 5 and 0 T-shirts = 14 + 2 = 16
So the probability is 16/38
Now we have to add them together to find the probability that the student sold 11-15 T-shirts or less than 6 T-shirts.
(or means to add)
So the probability is 3/38 + 16/38 = 19/38 = 0.5000
Therefore, the correct answer is option c.
check the picture below.
if ∡F = 90° and ∡D = 30°, then the ∡A = 60°, meaning the triangle is a 30-60-90 triangle and therefore we can use the 30-60-90 rule as you see in the picture.
Answer:
Line LM
Step-by-step explanation:
First, we need to know what the slope is of a line that would be perpendicular to a line with a slope of -5/6. To find this, we take the reciprocal and multiply it by -1. Therefore, the line we are looking for needs to have a slope of 6/5.
Based on the fact that the slope is positive, we can eliminate lines PQ and JK as they have a negative slope. This leaves us with lines LM and NO.
To find out whether or not it is between LM and NO, you could eyeball it by looking at the graph and simply counting which might be faster if you understand how to do that (rise/run), or you can use the pair of coordinates given to you on each line to calculate for slope.
Line LM -
Line NO -
Based on this, we know that line LM is perpendicular to a line that has a slope of -5/6.
<em>If you need help on calculating slope from two points, I'd suggest watching this video: </em><u>https://www.brightstorm.com/math/algebra/linear-equations-and-their-graphs/finding-the-slope-of-a-line-from-2-points-problem-1/#:~:text=Use%20the%20slope%20formula%20to,second%20points%20are%20x2%2C%20y2.</u>
Answer:
2700
Step-by-step explanation:
the formula is (n - 2) 180