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miskamm [114]
2 years ago
14

Find the factors prime or composite 21

Mathematics
1 answer:
velikii [3]2 years ago
7 0

Answer:

21 is a composite number

Step-by-step explanation:

It is a composite because multiple numbers can go in it like 3 and 7 so it is a composite number

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Given that 7 x − 2 y = 35 Find y when x = − 9
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so x = minus 9

then

7 × (-9) - 2y = 35

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a train travels 304 miles in 4 hours if it continues to travel at the same rate how many miles will it travel in seven and a hal
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Step-by-step explanation:

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An object moves in simple harmonic motion with period 8 seconds and amplitude 6 cm. At time t = 0 seconds, its displacement d fr
Vladimir79 [104]

In the equation model, the simple harmonic motion is d=6sin(πt/4)-6 if the object moves in simple harmonic motion with a period of 8 seconds and amplitude of 6 cm.

<h3>What is simple harmonic motion?</h3>

Simple Harmonic Motion is described as a motion in which the restoring force is proportionate to the body's displacement from its mean position.

We have:

Amplitude A = 6 cm

Time period = 8 seconds

T = 2π/w

8 = 2π/w

w = π/4

Its displacement d from rest is -6 cm, and initially, it moves in a positive direction.

d(0) = -6 cm at t = 0

The equation becomes:

\rm d = 6sin(\dfrac{\pi}{4}t)-6

Thus, in the equation model, the simple harmonic motion is d=6sin(πt/4)-6 if the object moves in simple harmonic motion with a period of 8 seconds and amplitude of 6 cm.

Learn more about the simple harmonic motion here:

brainly.com/question/17315536

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