Answer:
87: y = 5
88: y = 0
89: y = -2
90: y = -1/2x + 9
91: y = 2x - 16
92: y = x - 11
Step-by-step explanation:
To find the slope(m): (y1 - y2)/(x1 - x2)
To find the y-intercept:
y = mx + b
Replace m with the slope and x and y with one of the sets of coordinates. Then simplify to get the y-intercept. Use the equation y = mx + b and replace m with the slope and b with the y-intercept to get the equation.
(Sorry if this is a little confusing.)
Answer:
Step-by-step explanation:
1. true
2. true
3. true
4. true
5. true
Answer:

Step-by-step explanation:
The given polynomials can be added together by adding like terms together as shown below:
=> Add together, the coefficient of all terms that have the power of 3.




=> 


=> 


=> 


The answer = 
Answer:
the volume is 

Step-by-step explanation:
This problem bothers on the mensuration of solid shapes, a cylinder.
Given data
Volume v = ?
Radius r = r in
Height h= 2r in
We are expected to solve for the volume of a cylinder, given the above data we can substitute it in the formula for volume of a cylinder to obtain our result
we know that the expression for the volume of a cylinder is


Hence the volume in terms of the radius is 
Answer:
8/15
Step-by-step explanation:
the denominators are different so you need to find the lowest common multiple which is 15
you times 3 by five so you have to change the 1 into 5
you times 5 by three so you have to change the other numerator to 3
so it becomes:
5/15 + 3/15= 8/15