For points (x1,y1) and (x2,y2)
the slope is (y2-y1)/(x2-x1)
(3,4) and (6,6), slope is (6-4)/(6-3)=2/3
(4,-4) and (2,-7), slope is (-7-(-4))/(2-4)=(-7+4)/(-2)=-3/-2=3/2
for ax+by=c
slope=-a/b
3x+4y=12
slope=-3/4
Answer:
-1/3
Step-by-step explanation:
→ Write down 2 coordinate pairs
(-9 , 11) and (-3 , 9)
→ Write down the slope formula
(y₂ - y₁) ÷ ( x₂ - x₁ )
→ Substitute in the numbers
( 9 - 11 ) ÷ ( 9 - - 9 )
→ Simplify
-1/3
Recall the values of the trigonometric functions at the required angles:
So, the number -4 can be thought of as
the answer would be,
sorry. if wrong.
but hope it helps anyways.
Answer:
Step-by-step explanation:
Given that the random variable x represents the number of phone calls an author receives in a day
Poisson distribution is a discrete distribution with random variable countable.
Here no of calls cannot be in fraction or decimal.
Also given that X is Poisson with mean = 7.6
X is discrete since no of phone calls can take values as 1,2,3....
X can take any value from 0 to infinity.
x=3.2 is not possible since 3.2 calls does not exist.