Answer:
y=x+z/4
Step-by-step explanation:
cuz the yeet
Okay so we're given:
Area = x^2 + 5x -84
width = x +12
We need to find length, so for now, let's say length = L
We know Area = Length x Width so filling what we have into this equation...
Area = Length*width
x^2 +5x -84 = L*(x+12)
Divide both sides by (x +12) and you get...
(x^2 +5x-84)/(x+12) = L
Do that division and you get
L = x-7
Let me know if you need help with the polynomial division, there are lots of good videos on it on youtube!
A(1) = -6 +(1 -1)*(1/5) = -6
A(4) = -6 +(4 -1)*(1/5) = -5 2/5
A(10) = -6 +(10 -1)*(1/5) = -4 1/5
Answer:
a = 3; b = -5
Step-by-step explanation:
x² -2x-3=(x-3)(x+1)
As it divides p(x); P(3) = 0 and P(-1) =0
P(x)= ax³ - 8x² + bx + 6
P(3) = 3³a - 8*9 + 3b + 6 =0
27a - 72 + 3b + 6 = 0
27a + 3b -66 =0
27a + 3b = 66 ------------------(i)
P(-1) = -a -8*(-1)² + b* (-1) + 6 = 0
-a - 8 -b + 6 = 0
-a - b -2 = 0
-a -b = 2 --------(ii)
(i) ------- 27a + 3b = 66
(ii)*3 -3a -3b = 6
Add 24a = 72
a = 72/24
a = 3
Substitute a value in (ii)
-3 - b= 2
-b = 2+3
-b= 5
b = -5
8*4 = 32 then 32 / 1280 = 40 as the dimensions.
