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skad [1K]
2 years ago
14

Answer this equation please (2.5 • 100) • 5 = ?

Mathematics
1 answer:
stepan [7]2 years ago
7 0

Answer:

1250

Step-by-step explanation:

(2.5 • 100) • 5

Parentheses first

250 *5

1250

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An airplane with an air speed of 165 mph is headed 210°. If the plane encounters a 15 mph wind from the west, find the ground sp
mestny [16]
Since a calculator is involved in finding the answer, it makes sense to me to use a calculator capable of adding vectors.

The airplane's ground speed is 158 mph, and its heading is 205.3°.

_____
A diagram can be helpful. You have enough information to determine two sides of a triangle and the angle between them. This makes using the Law of Cosines feasible for determining the resultant (r) of adding the two vectors.
.. r^2 = 165^2 +15^2 -2*165*15*cos(60°) = 24975
.. r = √24975 ≈ 158.03
Then the angle β between the plane's heading and its actual direction can be found from the Law of Sines
.. β = arcsin(15/158.03*sin(60°)) = 4.7°
Thus the actual direction of the airplane is 210° -4.7° = 205.3°.

The ground speed and course of the plane are 158 mph @ 205.3°.

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3 years ago
There are 64 pretzels in a 16 ounce bag of chocolate covered pretzels.
FromTheMoon [43]
16:64
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5 0
3 years ago
Terry evaluates 6 divided by 1/8 using multiplication expression
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what is way two get to the south pole.

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2 years ago
The sum of two numbers, x and y, is 12. The difference of x and two times y is 6. What are the values of x and y?
ikadub [295]
We write to expressions since there are two unknown here which is x and y. The first expression is the <span>sum of two numbers, x and y, is 12.

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3 years ago
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6 0
3 years ago
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