The answer is: -3r+15r
you will multiply -3*5 first then -3*-r
Answer:
8f+4g
Step-by-step explanation:
You have to distribute 2 to each number in the parentheses 2 times 4 is 8 and since 4 has a variable it is 8f and 2 times 2 is 4 and since 2 has a variable it is 4g. We don't combine the two because they have different variables. So the answer is 8f+4g. Hope this helped :)
It would be seven centimeters on each side'
Answer: i believe its 20% Im not entirley sure.
Step-by-step explanation:(V2−V1)|V1|×100
=(30−25)|25|×100
=525×100
=0.2×100
=20%change
=20%increase
\_(~.~)_/ idek
Answer:
Step-by-step explanation:
1) 
Altitude = 2
Period = 2pi/(1/2) = 4pi
(since 1/2 is coefficient of x)
Altitude interval = [-4,0]
Domain interval = set of all real numbers
Phase shift = 0
Vertical shift = 2 down
2) y=-4sin(2x+pi/2)-2
Altitude = 4
Period = 2pi/(2) = pi
(since 2 is coefficient of x)
Altitude interval = [-6,2]
Domain interval = set of all real numbers
Phase shift = pi/2
Vertical shift = 2 down