Answer:
A.
Step-by-step explanation:
d = rt
If t is the time taken by the train, then the truck takes t+2 hours.
For the truck:
d = 45(t + 2)
For the train:
d = 60t
Total distance travelled by both:
= 2d
= 60t + 45(t + 2)
= 60t + 45t + 90
= 105t + 90 where t is the time taken by the train.
Answer:
The probability is
Step-by-step explanation:
There are a total of 9 die in the box after she added the "cheat" die. Since there is only 1 "cheat" die in the box and chooses a die at random then the probability of her having chosen the cheat die is . The fact that she rolled two sixes did not affect when she choose the die therefore the probability remains as .
I hope this answered your question. If you have any more questions feel free to ask away at Brainly.
Answer:
Odd function
Step-by-step explanation:
The given function is
We know that:
- The function is even if f(-x) = f(x)
- The function is odd if f(-x)=-f(x)
- If the function doesn't satisfy these two properties then it is neither odd nor even.
Hence, we substitute x = -x to find f(-x)
Since, f(-x)=-f(x). Hence, the function is odd.
Answer:
D.
Step-by-step explanation:
7) 4
8) 22
9) 9
10) 12
Good luck!