Total is 45-5 = 40, because it starts at 5, tricky haha
Area in interest is 30-20 = 10
What percentage is 10 of 40?
10/40 = 0.25
0.25*100 = 25%
Brainiest
Answer:
B. (4,2)
Step-by-step explanation:
Part (a) Finding the probability of either A or B
We are told that events A and B are mutually exclusive. This means they cannot happen at the same time. We can say P(A and B) = 0
Furthermore,
P(A or B) = P(A) + P(B) - P(A and B)
P(A or B) = 0.4 + 0.2 - 0
P(A or B) = 0.6
<h3>Answer: 0.6</h3>
=======================================================
Part (b) Finding the probability of neither A nor B
P(A or B) + P(neither A nor B) = 1
P(neither A nor B) = 1 - P(A or B)
P(neither A nor B) = 1 - 0.6
P(neither A nor B) = 0.4
The reason why this works is to imagine throwing a dart at the Venn diagram. You'll either...
- you land in A or B (pick one but not both), OR,
- you'll land outside both regions A and B.
One or the other must happen. Both events cannot happen simultaneously.
<h3>Answer: 0.4</h3>
Answer:
1st question answer is 10cm2
2nd question answer is 1368 in2
3rd question answer is 45 in2
Step-by-step explanation:
1st question explanation is 16+ 24 = 40
2nd question explanation is 19 x 8 x 9 = 1368
3rd question explanation is 8 x 2 1/4 x 2 1/2 = 45
DON'T COMPLAIN IF WRONG!
Answer:
10 water stations are needed
Step-by-step explanation:
To get the number of water- station needed, we simply divide the total length of the half marathon by the distance where we can find a water station
mathematically,
that would be 13.1 divided by 1 1/3
= 13.1 divided by 4/3
= 13.1 * 3/4 = 9.825 which is approximately 10
