Answer: There are 2346953264 ways to do so.
Step-by-step explanation:
Since we have given that
Total number of selected countries = 12
Number of selected countries from a block of 45 = 3
Number of selected countries from a block of 57 = 4
So, remaining number of selected countries from a block of 69.
So, 12-(3+4)=12-7=5
Now, we need to find the number of ways, so we will use "Combination" to select that number of countries.
So, it becomes.

Hence, there are 2346953264 ways to do so.
Answer:
a= -12 and b=36
Step-by-step explanation:
a+b=24 and 3a+b
a-3a+b=24
-2a+b-b=24
-2a/-2=24/-2
a= -12
then substitute the value of a in a+b=24 to get the value of b
so let see -12+b=24
b=24+12
b=36
we can check it by the equation -2a+b-b=24
-2(-12)+36-36=24
24=24 so as you have seen the answer is correct
thanks!!!
Answer:

Step-by-step explanation:


Answer:
The functions have the same y-intercept.
OPTION C is correct.
Step-by-step explanation:
<u>DEFINITIONS AND FORMULAS</u>
The equation of a linear graph is given to be:

Where m is the slope of the graph and b is the y-intercept.
To calculate the slope given a table, we can use the formula:

<u>SOLUTION</u>
<u>Function 1:</u> The equation of the graph is given to be

Therefore, the y-intercept of the graph is given to be:

<u>Function 2: Recall that the y-intercept of a graph is the y-value when x = 0.</u>
On checking the graph, we can see that when r = 0, p = -5.
Therefore, the y-intercept is:

ANSWER
The functions have the same y-intercept.
OPTION C is correct.