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qwelly [4]
3 years ago
10

The whitish distance across the scale model of the planet Venus is 15 cm. The actual widest distance across Venus is approximate

ly 12,000 km. What is the scale of the Model of Venus
Mathematics
1 answer:
Mrrafil [7]3 years ago
8 0

Answer:

  1 cm : 800 km   or   1/80,000,000

Step-by-step explanation:

A model or map scale is often expressed as ...

  (1 unit of A on the model) : (N units of B in the real world)

We're given the relative measurements as ...

  15 cm : 12,000 km

Dividing by 15 gives the unit ratio as above:

  1 cm : 800 km

__

A scale can also be expressed as a unitless fraction. To find that, we need to convert the units of both parts of this ratio to the same unit.

  0.01 m : 800,000 m

Multiplying by 100, we get ...

  1 m : 80,000,000 m

Since the units are the same, they aren't needed, and we can write the scale factor as ...

  1 : 80,000,000   or   1/80,000,000

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yuradex [85]
Define i  as a unit vector in the eastern direction.
Define j as a unit vector in the northern direction.

Part I
Because the wind is blowing west, its velocity vector is
 -23i mph or as (-23, 0) mph
Because the plane is traveling north, its velocity vector is
  200j mph or as (0, 200) mph 

Part II
The actual velocity of the plane is the vector sum of the plane and wind velocities.
That is,
200j - 23i or (-23, 200) mph

Part III
The ground speed of the plane is the magnitude of its vector.
The ground speed is
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Not:
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7 0
3 years ago
What 2/9rounded to the nearest whole number
Arte-miy333 [17]
The answer is 3 because if you were to round 2.9 the next whole up from that is 3
4 0
3 years ago
Find the balance in an account at the end of 8 years if $6000 is invested at an interest rate of 4.2% that is compounded continu
tester [92]

Answer:

$8016.00

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I = 6000 × 0.042 × 8 = 2016

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7 0
2 years ago
Please answer right away and don’t guess
Mazyrski [523]

Answer:

Last Option

P (B) = 0.6

Step-by-step explanation:

We have the Venn diagram that shows the probabilities of occurrence of 3 events A, B and C

In this case, since events A and B and B and C are non-disjoint events, then the probability of occurrence B is the sum of the probability that only B will occur plus the probability of occuring A and B plus the probability that B and C occur

This is:

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P (B) = 0.6.

8 0
3 years ago
Express this decimal as a fraction.<br> please explain as well.
Vikki [24]

8/10 if simplified 4/5 idk how to explain it tho lol

8 0
3 years ago
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