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fgiga [73]
3 years ago
14

NEED HELP ASAP!!

Mathematics
1 answer:
storchak [24]3 years ago
3 0

Answer: 1.2 in

Step-by-step explanation:

The pythagorean theorem states that a²+b²=c².  Thus, 0.9²+b²=1.5².

1.5²=2.25

0.9^2=0.81

0.81 + b² = 2.25

1.44 = b²

b = 1.2

Hope it helps <3 :)

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A portrait has dimensions of 30“ x 60“ and is surrounded by a frame of uniform width. If the total area (Portrait plus frame) is
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Step-by-step explanation:

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∴ The total area of the portrait plus frame = (30 + 2x)(60 + 2x)

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∴ (30 + 2x)(60 + 2x) = 1800 + 60x + 120x + 4x²

→ Add the like terms

∴ (30 + 2x)(60 + 2x) = 1800 + 180x + 4x²

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→ Equate the two right sides of the area

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→ Add the like terms in the left side

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→ Subtract 49 from both sides to find x

∴ x = -49 ⇒ refused it x can not be -ve (no negative dimensions)

∴ The width of the is 4 inches

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