Answer:
13.5
Step-by-step explanation:
area: 1/2*[x1(y2 - y3) + x2(y3 - y1) + x3(y1 - y2)]
Answer:
is the last one
Step-by-step explanation:
Answer:
y = 5 + 2.5x
Step-by-step explanation:
1: they start off with a $5 entry fee, so even if no pounds of apples were bought, they would still have to pay $5.
2: For each pound of apples bought, it costs 2.5, therefore if they bought 3 pounds, it would be 3 x 2.5, if they bought 7 pounds, it would be 7 x 2.5. If they bought x pounds, it would be x x 2.5 = 2.5x
3: Putting that together, the total cost is the entry fee plus the money spent on apples.
4: Y (total cost) = 5 + 2.5x
Hope this helps, let me know if you have any questions :)
Answer:
1/24 = 0.0417 (3 sf) = 4.17% (3 sf)
Step-by-step explanation:
- Probability is how likely something is to happen
- The probability of an event happening = (number of ways it can happen) ÷ (total number of outcomes)
With a number cube there are 6 outcomes: 1, 2, 3, 4, 5 or 6
So the probability of rolling any of these 6 numbers is = 1/6
⇒ probability of rolling a 3 = 1/6
The probability of rolling an even number = the probability of rolling a 2 OR a 4 OR a 6 = 1/6 + 1/6 + 1/6 = 3/6
As rolls are independent from any other rolls, the probability of the second and third roll will not be affected by the first or second roll.
We can calculate the chances of two or more independent events by multiplying the chances.
Therefore, the probability of getting an even number AND an even number AND a 3 = 3/6 x 3/6 x 1/6 = 1/24
