Answer:
198 km
Step-by-step explanation:
The speed of the boat supposed to be x km/h
(x+2)*9 = (x-2)*11
9x + 18 = 11x – 22
2x = 40
X = 20
Distance between 2 places: (20 + 2) * 9 = 198 km
Or (20 – 2 ) * 11 = 198 km
Answer:
If Zahara finishes a level in 201 seconds, she earns:
Step-by-step explanation:
To identify the number of points that Zahara obtained when she finished a level in 201 seconds, you must use the given expression:
- -5.5 + 500+ 0.9t + (1 - 1.9t)
Where:
As Zahara took 201 seconds to finish a level, we're gonna replace this value in the equation:
- -5.5 + 500+ 0.9t + (1 - 1.9t)
- -5.5 + 500+ 0.9(<u>201</u>) + (1 - 1.9[<u>201</u>]) (we're not use the unit "seconds", because we don't need it in this calculation)
- -5.5 + 500+ 180.9 + (1 - 381.9)
- -5.5 + 500+ 180.9 - 380.9 (You can organize the numbers is you want)
- 500 + 180.9 - 380.9 - 5.5
- <u>294.5 points</u>
As you can see, <u>Zahara obtains 294.5 points if she finishes the level in 201 seconds</u>.
Answer: The function is EVEN.
Step-by-step explanation:
For this exercise it is important to remember that:
1. A function f(x) is even if and only if:
for all "x"
2. A function f(x) is odd if and only if:
for all "x"
So knowing that, and given the following function k(x):
You can plug in for "x", order to know if this is even. Then, you get:
Therefore, since:
You can determine that that the given function is Even.
No, 1+1= Fish, 2+2=window duhhh xD
jkjk, 1+1=2 and 2+2=4 haha
if you add 288cm and multiply by 216 then you shall get 433 and so if you