Answer:
-3
Step-by-step explanation:
We have two points
( -3,1) ( -1,-5)
We can use the slope formula
m = (y2-y1)/(x2-x1)
= ( -5-1)/(-1- -3)
= (-5-1) / (-1+3)
= -6/2
= -3
Answer:

Step-by-step explanation:
we are given
A student randomly guesses on 10 true/false questions
so,

there only true and false
so, probability getting true question is

so, probability getting false question is

the student gets 5 out of 10 questions right
so,
r=5
we can use binomial probability formula

now, we can plug values

we can simplify it
and we get

Plug in the point
1 = 10 - 4(6)
1 = 10 - 24
1 = -14, false
Solution: B
Answer:
After 15 years, the area will be of 775.3 km²
Step-by-step explanation:
The equation for the area of the forest after t years has the following format.

In which A(0) is the initial area and r is the yearly decrease rate.
A certain forest covers an area of 2600 km2.
This means that 
Suppose that each year this area decreases by 7.75%.
This means that 
So


What will the area be like after 15 years?
This is 


After 15 years, the area will be of 775.3 km²
If you can graph in slope intercept, your new equations would be: y= -2x-1 and y= 2/3x-3.
Just graph those now since it should be easier.