Answer:
a. C(0.99,280) = $8.66
This represents the cost of driving 280 miles if gas costs $0.99 per gallon.
b. C(1.02, 178)=5.67 would be the cost of traveling 178 miles when the price of gas is $1.02 per gallon
check the picture below.
make sure your calculator is in Degree mode.
Answer:
x=3, y=-2
Step-by-step explanation:
If 2x-4y=14, then we know that 2x=14+4y. This means that x=7+2y. If we substitute this into the next equation we get: 3y+(35+10y)=9. This means that we have 35+13y=9. If we subtract 35 from both sides we get 13y=-26. This means y=-2. If you subsitute this in the first equation, we have 2x--8=14. -- means + so you do 2x+8=14. This means that x=3.
btw this is my first answer so sorry if its bad.
Solution :
Given :
The events are as follows :
P : Set of all the people
S : Set of people those who are single
C : Set of people having children
W : Set of women
M : Set of men
a). Now set of married women having children is given by :
And set of single women who do not have any children : (S -C) - M
Thus the set of women those who are either married and have children or they are single and they do not have any children is represented by :
b). Set of Married men :
Set of Married men :
Set of all possible married who are heterosexual couples, that is, all possible pairings of the married men and the married women is represented by :
c). The number of all the possible married heterosexual couples will be represented by the cardinality of the above set, which represents the number of the elements in the set.
Thus the number of the married heterosexual couples is given by :
Answer:
Step-by-step explanation:
The formula of an area of a circle:
r - radius
The formula of a circumference of a circle:
We have the area of a circle
Substitute to the formula and solve for r:
<em>divide both sides by π</em>
Put the value of r to the formula of a circumference: