Combined like terms 11d+8
Answer:
35 students
Step-by-step explanation:
70% of 50 = 0.7×50 = 35
Answer:
the screen shoy isnt showing up
Step-by-step explanation:
you can make a table of values using any intergers and as many as you need in this case I chose 0,1,2 then you replace them in your actual equation and find the values of y.finally plot.
after plotting the points you shade the unwanted region(the sign will direct you) in this case the wanted region is y>.so you shade the less than area.
for the second one you make the equation simpler
6x+3y<9
3y<-6x+9
and also make a table of values,replace were there's x and plot
I hope this helps!
for further questions please feel free to ask
First we find the mean (average)
(17 + 18 + 19 + 20 + 21) / 5 = 95/5 = 19
now subtract 19 from all values...then square it
17 - 19 = -2...-2^2 = 4
18 - 19 = -1...-1^2 = 1
19 - 19 = 0...0^2 = 0
20 - 19 = 1....1^2 = 1
21 - 19 = 2...2^2 = 4
now take the mean (average) of those
(4 + 1 + 0 + 1 + 4) / 5 = 10/5 = 2 <== this is ur variance
standard deviation is the square root of the variance...
sq rt 2 = 1.414