Answer:
The average acceleration of train is
Step-by-step explanation:
We have,
A train that slows down from 15 m/s to 8.6 m/s in 1.2 s. It means that 15 m/s is its initial velocity and 8.6 m/s is its final velocity.
It is required to find the average acceleration of the train.
The average acceleration of train is . Negative signs shows that the train is decelerating.
Answer:
The total price of the groceries, including discount and tip is $110.4.
Step-by-step explanation:
Here, the bill amount of groceries = $120
Now, the coupon off = 20%
Calculating the discount, we get
20% of bill amount $120 = 20% of 120 =
So, the 20% discount on the bill amount = $24
The actual payable amount = Bill Amount - Discount
= $120 - $24 = $96
Now, 15% tip is also applied on the actual payable amount $96.
15% of 96 =
So, the total price t = Payable amount + Tip amount
= $96 + $14.4 = $110.4
or, t = $110.4
Hence, the total price of the groceries, including the discount and the tip is t = $110.4.
Given:
Total number of book = 22
Number of white books = 6
Number of Purple books = 9
Number of green books = 7
To find:
The probability that Warren takes out a green book in both draws (with replacement).
Solution:
We know that,
After replacement, the probability of event remains the same and the independent.
The probability that Warren takes out a green book in both draws is:
Therefore, the correct option is (a).