3 years ago

How many different ways can you arrange five people shoulder to shoulder in a line

Mathematics

1 answer:

Liono4ka [1.6K]3 years ago

3 0

I think the answer is 25

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Charlie is at a small airfield watching for the approach of a small plane with engine trouble. He sees the plane at an angle of

Akimi4 [234]

Refer to the diagram shown below.

Let d = the horizontal distance from Charlie to the plane.
By definition,
tan(32°) = 1694.8/d
1694.8/d = 0.6249
d = 1694.8/0.6249 = 2712.2 ft

Answer: 2,712.2 ft

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3 years ago

A car starts from an initial velocity of 10m/s and accelerates at 2.5m/s².how long will it take the car to reach a speed of 40m/

PIT_PIT [208]

A=(v-u)/t
We know a=2.5, v=40, u=10, so:
2.5=(40-10)/t
2.5t=40-10
2.5t=30
Divide both sides by 2.5
t=12 It takes 12 seconds for the car to reach 40m/s

To find out how far it went, you do:
d=v+1/2 at^2
d=10+1/2(2.5)(12)^2
d=10+1/2(2.5)(144)
d=10+(1.25)(72)
d=10+90
d=100m

Hope this helps :)

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3 years ago

Approximate the real zeros of f(x) = x2 + 3x + 1 to the nearest tenth

pshichka [43]

Approximate the real zeros of f(x) = x2 + 3x + 1 to the nearest tenth

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3 years ago

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kogti [31]

Answer:

Step-by-step explanation:

P = 5x

P = 5(3) = 15

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2 years ago

Solve for x. Each figure is parallelogram

Dima020 [189]

Answer:

-1+2x= 17

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Step-by-step explanation:

ans. 9

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3 years ago

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