Answer:
A pendulum is a weight suspended from a pivot so that it can swing freely. When a pendulum is displaced sideways from its resting, equilibrium position, it is subject to a restoring force due to gravity that will accelerate it back toward the equilibrium position
EXAMPLES:
the tick in a grandfather clock, a wrecking ball suspended by a chain or link
Step-by-step explanation:
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Equation A. 4(t-6)=3t+9; 4t-24=3t+9; t-24=9; t=9+24; t=33;
The given terms are two terms apart, so their difference is twice the difference of adjacent terms.

The value of d is 4.
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Set the equation to show equal 15h+75=225.
Solve for h which h=10
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