Answer:
The first answer should be the 3rd one.
The second answer should be the first one.
Step-by-step explanation:
(m+4)(m+1)
=m^2+5m+4........
Answer:
the required equation is; y = 21 sin(πt/6)
Step-by-step explanation:
Given the data in the question;
Water rises above sea level = 21 ft
Water drops below sea level = 21 ft
so
maximum = 21 ft and also
minimum = 21 ft
Amplitude = ( maximum + minimum ) / 2
Amplitude = ( 21 + 21 ) / 2
Amplitude = ( 21 + 21 ) / 2 = 42/2 = 21 ft
Period = 12 hours
and we know that; period = 2π/b
so
12 = 2π/b
12b = 2π
b = 2π / 12
b = π/6
Standard equation for simple harmonic is; y = asin(bt)
we substitute
y = 21 sin(πt/6)
Hence the required equation is; y = 21 sin(πt/6)
An appropriate cautious reading of a receipt entail making sure that the
items charged are the same as the items received and checking to see if all
of the discounts were applied properly,
When an item is bought, a receipt is usually issued which confirms that
payment has been made for the goods or services. Receipt however should
be properly checked to detect any error in the course of the transaction.
Making sure that the items charged are the same as the items received and
checking to see if all of the discounts were applied properly should be done
to avoid shortages of the resources of the parties involved.
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