d.(x - 9) (x - 3)
Step-by-step explanation:
x² - 12x + 27 = 0
x² - 9x - 3x + 27 = 0
x(x - 9) - 3(x - 9) = 0
(x - 9) (x - 3) = 0
Answer:
729 square units
Step-by-step explanation:
If the width of the square is 27, then the length is also 27. After all, this is a square with four equal sides.
The area of a square is A = s^2, where s is the length of one side.
Here, A = 27^2 = 729 square units.
Let
x--------> volume of 50% fertilizer
y--------> volume of 30% fertilizer
we know that
x+y=160-----> x=160-y-----> equation 1
x*0.5+y*0.3=160*0.4-----> equation 2
substitute equation 1 in equation 2
[160-y]*0.5+0.3*y=63.8----> 77-0.35*y+0.25*y=63.8
0.10*y=13.2------> y=13.2/0.10----> y=132 gal
x=220-y----> x=220-132----> x=88 gal
the answer is
88 gal of 50% fertilizer
132 gal 30% fertilizer
Answer:
n=28 7 times 16=112divided by 4 =28
Step-by-step explanation:
A=bh. You are trying to find the missing dimension which is height. You can set up an equation. 18.7=17h. Divide 18.7 by 17, and you get 1.1, so the height is 1.1
