2 less than n is n-2
And
n plus n is 2n
Answer: Option 'D' is correct.
Step-by-step explanation:
Since we have given that
Upper P (Upper B vertical line Upper A)
means

It means that probability of getting event B given that Event A is occurred.
D. The probability of event B occurring, given that event A has already occurred. is also expressed as 
Hence, Option 'D' is correct.
Question 1
The given system of equations is:

Equate the two equations:

Rewrite in standard form:




When we put x=0, in y=3x +6, we get:

One solution is (0,6)
When we put x=-2, into y=3x+6, we get:

Another solution is (-2,0)
The solutions are; (0,6) and (-2,0)
Question 2:
The function is

Let us put x=-x,

This gives:

We can observe that:

This is the property of an even function.
Question 3:
The given function is

The average rate of change of f(x) from x=a to x=b is given as:

This is the slope of the secant line connecting the two points on f(x)
From x=2 to x=6, the average rate of change

The average rate of change is 11
Answer:
144 push-ups
Step-by-step explanation:
hii
assuming they did the same amount of pushups every day:
112 pushups in 14 days
112p : 14d
xp : 18d
14 ÷ 7 =2
2 × 9 = 18
do the same do the pushups ( ÷7 and ×9)
112 ÷ 7 = 16
16 ×9 = 144
should be 144 pushups
hope this helps :)