Answer:2.3
Step-by-step explanation:
if t is trees and a is acers than
250t=.25*a
1000=a so 1000 trees can fit in his yard.
10t = 1000 sq ft
multiply the left side by 100
1000t=100000 sq ft
so there is 100000 sq ft in his yard
100000 sq ft/43560=answer≈2.3
Answer:
see explanation
Step-by-step explanation:
The equation of a parabola in vertex form is
y = a(x - h)² + k
where (h. k) are the coordinates of the vertex and a is a multiplier
here (h, k) = (- 6, - 1), thus
y = a(x + 6)² - 1
To find a substitute one of the roots into the equation
Using (- 3, 0), then
0 = a(- 3 +6)² - 1
0 = 9a - 1 ( add 1 to both sides )
1 = 9a ( divide both sides by 9 )
a = 
, thus
y = (x + 6)² - 1 ← in vertex form
Expand factor and simplify
y = (x² + 12x + 36) - 1 ← distribute
y = x² + 
x + 4 - 1
= x² + x + 3 ← in standard form
I think that the answer is 8
if you want to check if it is right input 8 in place of b
Elga's age = x
Alvin's age = x + 7
x + x + 7 = 97.
Simplify the left side of the equation
2x + 7 = 97.
Subtract 7 from each side
2x = 90.
Divide each side by 2
x = 45
Since x is equal to Elga's age, Elga is 45 years old
x=18
y=-6
To find the x intercept, you would substitute the y with 0 and then solve for x.
To find the y intercept, you would substitute the x with 0 and solve for y.
Hope this helps braniliest please!
