Answer:
101 adults and 9 students
Step-by-step explanation:
4.50 * 2 = 9
6.00 * 101 = 606
606 + 9 = 615
Answer:
-30
Step-by-step explanation:
Evaluate 4 a + 7 b + 3 a - 2 b + 2 a where a = -5 and b = 3:
4 a + 7 b + 3 a - 2 b + 2 a = -5×4 + 7×3 - 5×3 - 2×3 - 5×2
4 (-5) = -20:
-20 + 7×3 - 5×3 - 2×3 - 5×2
7×3 = 21:
-20 + 21 - 5×3 - 2×3 - 5×2
3 (-5) = -15:
-20 + 21 + -15 - 2×3 - 5×2
-2×3 = -6:
-20 + 21 - 15 + -6 - 5×2
2 (-5) = -10:
-20 + 21 - 15 - 6 + -10
-20 + 21 - 15 - 6 - 10 = 21 - (20 + 15 + 6 + 10):
21 - (20 + 15 + 6 + 10)
| 1 |
| 2 | 0
| 1 | 5
| 1 | 0
+ | | 6
| 5 | 1:
21 - 51
21 - 51 = -(51 - 21):
-(51 - 21)
| 5 | 1
- | 2 | 1
| 3 | 0:
Answer: -30
C would be the answer I think
In the long run, you will lose $1 per game.
To find the expected value of this game, we have to multiply the chances by each prize. Then, add up all the possibilities.
(1/6) x $12 + (1/3) x $3 + (1/2) x $8
2 + 1 - 4 = -1
On average, you will lose $1 per game.
Answer:
(2,√21)
Step-by-step explanation:
The circle centered at the origin has equation:
Any point that satisfies this equation lie on this circle.
When x=2, we substitute and solve for y.
Take square root to get:
Therefore (2,-√21) and (2,√21) are on this circle.
From the options, (2,√21) is the correct answer
