Answer: The distance from each side of the bench to the edges of the platform = 16.85 feet.
Explanation:
Length of platform = 40.75 feet
Length of bench = 7.05 feet
Let the distance from each side of the bench to the edges of the platform be x
So, it becomes x+7.05+x = 40.75
⇒2x+7.05= 40.75
⇒2x = 40.75- 7.05
⇒x = 33.7
⇒x=
⇒x= 16.85 feet .
So, the distance from each side of the bench to the edges of the platform = 16.85 feet.
A
Given a quadratic in standard form : y = ax² + bx + c ( a ≠ 0 ), then
The x-coordinate of the vertex is
= -
y = - 3x² + 2x - 7 is in standard form
with a = - 3, b = 2 and c = - 7, hence
= -
=
Substitute this value into the equation for y-coordinate
y = - 3 ()² + 2 (
) - 7
= - +
-
= -
vertex = ( , -
) → A
Step-by-step explanation:
his father's age= 4x
his mother's age= 4x- 7
his age= x
x+4x+4x-7=101
x+ 4x+ 4x= 101+ 7
9x= 108
=
x= 12
Tesfa is 12 years old