Answer:
B. -7 + 8n
Step-by-step explanation:
-3.5(2 + -3n) + -2.5n = 0
(2 * -3.5 + -3n * -3.5) + -2.5n = 0
(-7 + 10.5n) + -2.5n = 0
0.5n + -2.5n = 8n
-7 + 8n
It would be (3.75,4) if you need further explanation comment.
Answer:
B. 140π units²
Step-by-step explanation:
Surface area of a cylinder:
2πrh + 2πr²
2π(5)(9) + 2π(5²)
90π + 50π
140π
Answer:
The expected value is -$0.17
Since it gives a negative expected value, the game is not favorable and should not be played
Step-by-step explanation:
Here, we want to calculate the expected game value and decide if the game is worth playing
Probability of rolling a six is 1/6
Probability of rolling a 5 is 1/6
Probability of rolling a number less than 5 is 4/6 = 2/3
So the only way to win is rolling a six
The expected value is thus;
1/6(3) - 0(1/6) - 2/3(1)
= 1/2 - 2/3
= -$0.17
Since the game gives a negative expected value, it is not favorable and should not be played
Answer:
Step-by-step explanation:
Substitute the values for a and c into the expression
- 2c + a
= - 2× +
= - +
= - +
= - +
=