First find the inverse function:
y = -x^2 + 2
y - 2 = -x^2
2 - y = x^2
x = (2 - y)^0.5
Therefore inverse: y = (2 - x)^0.5 [x < 2]
Then simply sub in four random values for x to give your answer (hint, for your x values, use 1, - 2, - 7 and - 14. These should yield nice integer values for y)
Answer:
3/91 ; 36/91
Step-by-step explanation:
1) favourable event/ total possibilities * favourable event/ new total possibilities
3/14 * 2/13 = 3/91
2) it is simplier calculate the probability of the opposite event (no balls are blue)
11/14 * 10/13 = 55/91
91 - 55 = 36
final answer 36/91
Answer:
Approximately 11 minutes and a couple of seconds!
Step-by-step explanation:
Let's find out how many minutes it takes her to ride a mile first
50/18 = 2.77777777778
each mile takes 2.77777777778 minutes.
The question asks for the time it would take for her to ride 4 miles, we just have to multiply the time we got by 4.
2.77777777778 x 4 = 11.1111111111
So, it would take Emily around 11 minutes.
tadah!
The answer is 123.84 and $218
Answer:
20+5w=t
Step-by-step explanation:
He starts with 20, so no matter what 20 will be added to the equation. Carlos gains 5 pushups each week. So that can be written as: 5w, because 5 pushups per week. So, it looks like this, 20+5w=t. The =t at the end represents the total amount of pushups he can do after w weeks.
Hope this helps.