The 4 subintervals are given: [2, 4], [4, 7], [7, 9], and [9, 10].
Each subinterval has length: 4 - 2 = 2, 7 - 4 = 3, 9 - 7 = 2, and 10 - 9 = 1.
Over each subinterval, we take the value of the function at the right endpoint: 3, 8, 15, and 18.
Then the integral is approximately

so 78.0 is the correct answer.
Answer:
a) 0.05
b) 0.9826
c) 0.000039308
Step-by-step explanation:
a) 
b) For two minutes, the mean is doubled, hence it is 6. In order to calculate the probability of al least two calls arriving, we calculate first the probability of the complementary event: At most 1 call will arrive. For that probability, we need to sum the probabilities of 0 and 1.


Hence,

c) For five minutes the mean is 15. We need to sum the probabilities of 0, 1 and 2.


As a result,

Practically 0
Question is Incomplete. Complete question is given below;
Maggie brought $10 to the candy store. She will buy a certain amount of fudge. One pound of fudge costs $2.30. If p represents the amount of fudge, in pounds, Maggie buys, which expression represents the money Maggie has left after visiting the candy store?
Answer:
The expression that represent the money Maggie has left after visiting the candy store is 
Step-by-step explanation:
Given:
Money Maggie brought at store = $10
Cost of 1 pound of fudge = $2.30
Let the amount of fudge be p
We need to find the amount of Money Maggie has left with after visiting the store.
The amount of Money Maggie has left with can be calculate by subtracting the amount of fudge she bought multiplied by Cost of 1 pound of fudge with Money Maggie brought at store.
The equation can be framed as;
Money left = 
Hence, The expression that represent the money Maggie has left after visiting the candy store is 
The answer is letter c because she makes $240.
Answer:
27,720 ways
Step-by-step explanation:
The number of permutations of non-distinct items is determined by the following expression:

If there are five linden trees, four white birch trees, and three bald cypress trees:

The landscaper can plant the trees is 27,720 distinct ways.