I don’t think I know this question sorry
Given : A = 24 sq feet
A = 0.5 base x height
base = x , height = x+2
A = 0.5 x(x+2) = 24 sq feet
1) 0.5 x(x+2) = 24 (A)
2) x^2 + 2x - 48 = 0 (D)
To check the rest un-wrap the bracket:
x^2 + (x+2)^2 = 24
x^2 + x^2 + 4 + 4x = 24
2x^2 + 4x - 20 = 0
x^2 + 2x - 10= 0 (NO)
Likewise:
x^2 + (x+2)^2 = 100
x^2 + x^2 +4 + 4x = 100
2x^2 + 4x + 4 = 100
2x^2 + 4x - 96 = 0
3) x^2 + 2x - 48 = 0 (F)
To sum up: that's what apply:
1) 0.5 x(x+2) = 24 (A)
2) x^2 + 2x - 48 = 0 (D)
3) x^2 + 2x - 48 = 0 (F)
Let . Then
lies in the second quadrant, so
So we have
and the fourth roots of are
where . In particular, they are
There is a ratio of 4 cows to 6 ducks.
There are 160 cows and 240 ducks.
Answer:
The total number of pencils for Larry, Ben and Dejuan is expressed as:
5B - 4
Step-by-step explanation:
Let B represent the number of pens Ben has.
》Ben = B
》Larry = 3 × B = 3B
》Dejuan = B - 4
∴ Total number of pencils for the three of them
= B + 3B + (B - 4)
= 5B - 4