Answer:
A , B and E.
Step-by-step explanation:
the scientist can control and deal with the measure of manure that is given to a solitary corn plants. thus A is correct.
The reaction variable is the yield recorded for each plot due to the fact that the yield recorded in each plot is needed to check whether the compost is given or not. choice B is also correct
it's considered an experiment because the specialist is controlling the autonomous variable. then E is a right choice.
Answer:
Step-by-step explanation:
It doesn’t say if x is a diameter or if the extended chord is a hypotenuse. I will assume so; it’s the only solution I can think of.
(x/2)^2 + (x/2 + 2)^2 = (7+5)^2
(x/2)^2 + 2x - 140 = 0
x = -2 ± 2√71
-2 - 2√71 Is an extraneous solution, so x = -2 + 2√71
Answer: $10
Step-by-step explanation:
Assume the price of the phone case is x.
Assume the price of the charging cord is y.
Discounted price for phone case : 15% * x
= 0.15x
Discounted price for charging cord = 0.15y
Expression is therefore:
0.15x + 0.15y = 4.20
0.15 * 18 + 0.15y = 4.20
2.7 + 0.15y = 4.20
0.15y = 4.2 - 2.7
y = 1.5/0.15
y = $10
Answer:
y= -1/6x+2
Step-by-step explanation:
