Answer:
Answer: It´s correlated. Step-by-step explanation: The graph shows that the height of the tree increases as time passes, meaning that the more time that a three has been planted the more height it has, so there´s a direct correlation between the time passing and the height of the tree.
Answer:
15 liters of 1% solution and 5 liters of 5% solution
Step-by-step explanation:
Let x liters of 1% solution needed and y liters of 5% solution needed to make this mixture.
We can say:
20(0.02) = x(0.01) + y(0.05)
0.4 = 0.01x + 0.05y
Also, we can write:
x + y = 20
x = 20 - y
We can put this into equation 1:
0.4 = 0.01x + 0.05y
0.4 = 0.01(20 - y) + 0.05y
0.4 = 0.2 - 0.01y + 0.05y
0.2 = 0.04y
y = 5 liters
Hence, x = 20 - 5 = 15 liters
We need,
15 liters of 1% solution and 5 liters of 5% solution
"Slope" is the rate at which something changes.
5/2 is a number. It doesn't have a slope.
Formula is
ₙCₖ = (n!)/( k!*(n-k)! )
so ₇C₃ = (7!) / (3! * (7-3)!)
and 7! = 7 * 6 * 5 * 4 * 3 * 2 * 1
= (7 * 6 * 5 * 4 * 3 * 2 * 1)/(3 * 2 * 1 * 4!)
= (7 * 6 * 5 * 4)/(4!)
= (7 * 6 * 5 * 4)/(4 * 3 * 2 * 1)
= (7 * 6 * 5 )/(6 * 1)
= (7 * 5 )/( 1)
= 35
