A=pi*r^2
dA/dt=2*pi*r
1) 24*pi cm^2/min
2)64*pi cm^2/min
Answer:
Infinitely many
Step-by-step explanation:
The second equation is basically multiplying the first equation by 2, so this means that they will have the same rate of change and initial value. Therefore, there are infinitely many solutions.
Answer:
a and c
Step-by-step explanation:
We would have to use the formula y1 - y2 / x2 - x2.
-5 - 3 = -8
2 - 6 = -4
Now we have -8/-4 and now we simplify to get 2/1
sense the formula of a line is y= mx + b we now how the first part which is
y=2x+b
now we can plug in the plot from the original points to the equation to finsish the problem
3= 2 x 6 + b
6 divided by 2 is 3 and 3 times -3 is -9 so the final answer will be
y=2x-9
Answer:
This is because as you add and subtract the numbers, you are really just moving them around nonsensically, to leave you back at the original two numbers. the same thing works with phone numbers. I do this sometimes as a magic trick.
Step-by-step explanation:
14x2
28+5
33x50
1650+15+365
2030-615
=1415
This works because most of the numbers are already set, so there are only two number that change, the math problems work to ensure that you reach the point where only the two variables are displayed. this also works with phone numbers.