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Gelneren [198K]
2 years ago
11

I have some geometry questions today!

Mathematics
1 answer:
vagabundo [1.1K]2 years ago
5 0

Answer:

<h3>Question 7</h3>

<u>Arc LM has length of:</u>

  • LM = 2πr*72/360
  • LM = 2π*1*1/5
  • LM = 2π/5
<h3>Question 8</h3>

<u>Area of the given sector:</u>

  • πr²*θ/360 =
  • x²π*(360 - 75)/360 =
  • x²π(19/24) =
  • 19πx²/24

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Delicious77 [7]

Answer:

B. 39.59

Step-by-step explanation:

So 43 degrees, you know the length of the opposite side (27) and the angle (43 degrees), the only unknown is the hypotenuse. So you're looking for a trigonometric ratio that uses the angle (all of them do, except technically the inverse don't), the opposite side, and the hypotenuse. Sine is defined as \frac{opposite}{hypotenuse}. So let's plug in known values:

sin(43) = \frac{27}{x}

Multiply both sides by x

sin(43) * x = 27

divide both sides by sin(43)

x=\frac{27}{sin(43)}

Normally I would use a calculator, but in this case I'll use the approximation given in the problem of 0.682

x=\frac{27}{0.682}

simplify the fraction

x\approx39.59

8 0
2 years ago
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Mazyrski [523]

Answer:

$2.20

Step-by-step explanation:

11 pounds of rice for $5.

Divide the $5 by 11.

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So 1 pound of rice is $2.20.

(PS i might be wrong, SO SORRY IF I AM)

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3 years ago
Solve seven and five ninths minus three and nine elevenths.
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