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2 years ago

Plz help asap I’ll give you 100 points

Mathematics

2 answers:

zimovet [89]2 years ago

6 0

Answer:

P=8x²+12y

Step-by-step explanation:

P=2L+2W; L=4x²-x+2y; W=x+4y; P=2(4x²-x+2y)+2(x+4y);

P=8x²-2x+2x+4y+8y; P=8x²+12y

kumpel [21]2 years ago

4 0

Answer:

P = 8x² + 12y units

Step-by-step explanation:

<u>Given sides of rectangle:</u>

x + 4y
4x² - x + 2y

<u>Its perimeter is:</u>

P = 2(l + w)
P = 2(x + 4y + 4x² - x + 2y)
P = 2(4x² + 6y)
P = 8x² + 12y

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Vlad1618 [11]

Answer:

XZ = 26.7

ZY = 11.7

Area = 140.4 sq inches

Step-by-step explanation:

m∠Z = 180-(26+90) = 64°

to get XZ you can use the law of sines:

sin 90°/XZ = sin 64°/24

1/XZ = sin(64°)

cross-multiply to get:

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XZ = 24/sin(64°)

XZ = 26.7

to get ZY you can use the law of sines again:

sin 64°/24 = sin 26°/ZY

cross-multiply to get:

ZY·sin(64°) = 24·sin(26°)

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ZY = 11.7

Area = 1/2(11.7)(24)

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= 140.4 sq inches

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