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OLEGan [10]
3 years ago
13

Emily wants to hang a painting in a gallery. The painting and frame must have an area of 31 square feet. The painting is 5 feet

wide by 6 feet long. Which quadratic equation can be used to determine the thickness of the frame, x? (5 points)
Mathematics
2 answers:
fomenos3 years ago
5 0

Answer:

4x² + 22x − 1 = 0

Valentin [98]3 years ago
4 0

Answer:

4x² + 22x − 1 = 0

Step-by-step explanation:

Start off with the standard formula to finding area with polynomials and quadratic functions.

(2x + 5)(2x + 6)

Work out like a normal binomial.

4 + 22x + 30 - 31

(You're subtracting 31 to take out the minimum of what the frame has to be)

4 + 22x - 1 = 0

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Richard and Teo have a combined age of 37. Richard is 4 years older than twice​ Teo's age. How old are Richard and​ Teo?
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R+T=37

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R=2T+4

<u><em>Then, solve the equations:</em></u>

Substitute (2) to (1) and solve for T:

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R=2(11)+4

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The moats separating people from the animals are 5 m wide for lions and 4 m wide for the elephants. If the lion’s moat is 4 m de
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Answer:

<em>The elephants' moat should be 3.2 meters deep.</em>

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Suppose, the depth of the elephants' moat is  x meter.

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First row, the answer on the left , -5 3/4 - 4 2/3
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