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Maslowich
2 years ago
15

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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Given sin(−θ)=−1/6 and tanθ=−√35/35 What is the value of cosθ?
murzikaleks [220]

Answer:

cos(\theta)=-\frac{\sqrt{35} }{6}

Step-by-step explanation:

Recall the negative angle identity for the sine function:

sin(- \theta)=-sin(\theta)  

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sin(\theta)=-sin(-\theta)\\sin(\theta) =-(-\frac{1}{6} )\\sin(\theta)= \frac{1}{6}

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tan(\theta)=\frac{sin(\theta)}{cos(\theta)}

Therefore, now that we know the value of sin(\theta), we can solve in this equation for cos(\theta)

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Please I need help.
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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to get ZY you can use the law of sines again:

sin 64°/24 = sin 26°/ZY

cross-multiply to get:

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ZY = 11.7

Area = 1/2(11.7)(24)

= 12(11.7)

= 140.4 sq inches

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2 years ago
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