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Pavlova-9 [17]
2 years ago
11

Please ANswer ASAP & show all work. If you put an incomplete or absurd answer I WILL report you.

Mathematics
1 answer:
bogdanovich [222]2 years ago
7 0

Answer:

  • 1 ft²

Step-by-step explanation:

The scale factor = 1 : 20

<u>The area is the product of two dimensions, so the area of the model part to actual part is:</u>

  • 1 ² : 20 ² =
  • 1 : 400

<u>If the actual plane has wing area of 400 ft², then the model will have wing area:</u>

  • 400 ft² / 400 = 1 ft²
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A curve in polar coordinates is given by: r=9+3cosθ. Point P is at θ=21π/18 .?
ikadub [295]

Answer:

Step-by-step explanation:

Given that a curve in polar coordinates is given by:

r=9+3cosθ

a) At point P, we have

θ=\frac{21\pi}{18}

Substitute to get

r=9+cos \frac{21\pi}{18}\\=9.3932

b) Cartesian coordinate is

x= rcos \theta=3.6934\\y =r sin \tjeta =8.6365

c) At the origin r =0

when r =0

we have

9+3cos\theta=0\\cos\theta =-3

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3 years ago
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If a car is going 80 mph so how long does it take to go 80 miles
Georgia [21]

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3 years ago
What is the product ?
Aneli [31]
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7 0
2 years ago
Read 2 more answers
Help me
Komok [63]

Answer:

system of equations are

y=53x + 10, y=55x

Step-by-step explanation:

y=mx+b where x is the number of tickets purchased and y is the total cost.

We need to frame the equation for each option

Option 1: $53 for each ticket plus a shipping fee of $10

1 ticket cost = 53

So x tickets cost = 53x

shipping fee = $10 so b= 10

So equation becomes y=53x + 10

Option 2: $55 for each ticket and free shipping

1 ticket cost = 55

So x tickets cost = 55x

shipping fee =0 so b= 0

So equation becomes y=55x

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2 years ago
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