I NEED HELP FAST! a carpenter made a wooden structure using one cube and one triangular prism. The diagram shows the structure.
The carpenter is only going to paint the surface area of the top side of the wooden structure.
To the nearest hundredth, what is the surface are that will be painted?
To the nearest hundredth, what is the surface are that will be painted?
1 answer:
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Answer:
vertex = (- 1, 3 )
Step-by-step explanation:
Given a parabola in standard form
y = ax² + bx + c ( a ≠ 0 )
Then the x- coordinate of the vertex is
= -
y = 2x² + 4x + 5 ← is in standard form
with a = 2, b = 4, then
= -
= - 1
Substitute x = - 1 into the equation for corresponding value of y, that is
y = 2(- 1)² + 4(- 1) + 5 = 2 - 4 + 5 = 3
vertex = (- 1, 3 )