Answer:
-2
Step-by-step explanation:
-4*3=12
-12/24= -2
-4*-2*3=24
Answer:
120.
Step-by-step explanation:
It is given that a car rental sells accident insurance to 28% of its customers.
Total number of customers = 430
We need to find the number of customers that are predicted to purchase insurance.
Required no. of customers = 28% of 430
Round to the nearest integer.
Therefore, the required no. of customers is 120.
Answer:
He spent around $ 52.17 in each month.
Step-by-step explanation:
Last year the power bill price = $ 626.14 ≈ $ 626
We know that in a year 12 months. so power bill of each month in last year is calculated as follows
$ 52.17
Therefore he spent around $ 52.17 in each month.
Answer:
This can be done in 3645 ways
Step-by-step explanation:
Permutations formula:
The number of possible permutations of x elements from a set of n elements is given by the following formula:
In this problem, we have that:
1 Beethoven symphony, from a set of 9.
1 Mozart concerto, from a set of 27.
1 string quartets, from a set of 15.
So
This can be done in 3645 ways
Answer:
1.
Let f and g concave functions. Then for a in (0,1), and
Now,
This shows that the function f+g is concave.
2. Let f and g concave functions.
This shows that the product of two concave functions isn't concave.