Tabitha wants to hang a painting in a gallery. The painting and frame must have an area of 58 square feet. The painting is 7 feet wide by 8 feet long. Which quadratic equation can be used to determine the thickness of the frame, x?

Image of a frame 7 feet wide by 8 feet long, with an of x on the bottom and right sides

x2 + 15x − 2 = 0
x2 + 15x + 58 = 0
4x2 + 30x − 2 = 0
4x2 + 30x + 58 = 0

Question

Tabitha wants to hang a painting in a gallery. The painting and frame must have an area of 58 square feet. The painting is 7 feet wide by 8 feet long. Which quadratic equation can be used to determine the thickness of the frame, x?

Image of a frame 7 feet wide by 8 feet long, with an of x on the bottom and right sides

 x2 + 15x − 2 = 0
 x2 + 15x + 58 = 0
 4x2 + 30x − 2 = 0
 4x2 + 30x + 58 = 0

help_people · Answer

attachment

help_people · Answer

A graph of a quadratic function is shown below. 

graph of y equals negative 2 times x squared plus 40 x plus 600

What is the vertex of the parabola shown?

 (30, 0)
 (800, 10)
 (0, 600)
 (10, 800)

help_people · Answer

attachment

help_people · Answer

@jim_thompson5910 @Crazyandbeautiful

help_people · Answer

@whpalmer4

jim_thompson5910 · Answer

Please post questions one at a time. Which one is giving you more trouble?

help_people · Answer

umm the seocnd one and srry :( @jim_thompson5910

jim_thompson5910 · Answer

that's ok

do you see how the given equation matches up with the form ax^2 + bx + c ?

help_people · Answer

yes

help_people · Answer

wiat not not for the second one

jim_thompson5910 · Answer

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