6.3 x 10^4
Hope this helps ^-^
It is given that probability of a student being on the debate team is 0.42
So, P(D) = 0.42
It is given that probability of a student being on the math team is 0.26
So, P(M)= 0.26
The probability that he is on both teams is .20
So,
We have to determine the probability his is on the math team if we know he is on the debate team. This is the case of conditional probability.
So,
= 0.476
= 0.48
Therefore, the probability that he is on the math team if we know he is on the debate team is 0.48.
Option 1 is the correct answer.
To be able to solve clearly this problem, the best thing
to do is to plot the graph (see attached pic). From the graph we can see that
the points form a trapezoid.
The base is formed by the segment connecting point A and
point B.
While the two heights: shorter one by the segment
connecting points A and D, and the longer one by the segment connecting points
B and C.
The formula for area of trapezoid is given as:
A = b (h1 + h2) / 2
Where,
<span>b = base of the trapezoid
= 3 – (-4) = 7</span>
h1 = shorter height = 2 – (-2) = 4
h2 = longer height = 2 – (-5) = 7
Therefore the area is:
A = 7 (4 + 7) / 2
A = 77 / 2
<span>A = 38.5 </span>
Answer:
414 have a great day :)
Step-by-step explanation:
(54−32)(9.2)
=(54−9)(9.2)
=(45)(9.2)
Answer:
a) 40 = 8b
b) b = 5
Step-by-step explanation:
(b) 40 = 8 × b
40 ÷ 8 = b
5 = b