Answer:
Step-by-step explanation:
5(a - b) + 6(a + b) - 7(a - 2b) = 5a-5b+6a+6b-7a+14b= 4a + 15b
Answer:
Step-by-step explanation:
x ≈ 4.66667
Applying probability concepts, it is found that the correct statements are:
- c) pa and pb are not equal
- d) pa is 2/3 and pb is 1/3
-------------------------------------------
- A probability is the number of desired outcomes divided by the number of total outcomes.
The sample space, that is, the possible outcomes for the coin tosses is given next, considering H for heads and T for tails.
H - H
H - T
T - H
T - T
-------------------------------------------
- Considering that there is at least 1 tails, the new sample space is:
H - T
T - H
T - T
- pa: probability of one head, two outcomes with 1 head out of three, thus, pa = 2/3.
- pb: probability that the second is tails, so one outcome(T - T) out of three, thus pb = 1/3.
-------------------------------------------
The correct statements are:
- c) pa and pb are not equal
- d) pa is 2/3 and pb is 1/3
A similar problem is given at brainly.com/question/14798120
Internal angles sum: 180(sides-2) = 180
5x = 180 - (48 + 90 + 17)
x = 25/5
x = 5
answer: 5
proof:
(90 + 48) + (5(5)+17) = 180
