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lesya [120]
2 years ago
6

Principal Rate Time 1 $4000 14% 4 1/2 years

Mathematics
1 answer:
Lyrx [107]2 years ago
7 0

Answer:

2,520.00

Step-by-step explanation:

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Find the simple interest on $900 for 18 months at a rate of 9.5% per year
Anestetic [448]
To get the simple interest, we must use the formula: I= (p)(r )( t)
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3 years ago
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Answer:

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Step-by-step explanation:

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3 years ago
Which sum or difference identity would you use to verify that cos (180° - q) = -cos q?
Phantasy [73]

Answer:

\cos (a-b)=\cos a \cos b+\sin a \sin b

Step-by-step explanation:

 Given : \cos (180^{\circ}-q)=-\cos q

We have to write which identity we will use to prove the given statement.

Consider \cos (180^{\circ}-q)=-\cos q

Take left hand side of given expression \cos (180^{\circ}-q)

We know

\cos (a-b)=\cos a \cos b+\sin a \sin b

Comparing , we get, a= 180° and b = q

Substitute , we get,

\cos (180^{\circ}-q)=\cos 180^{\circ}  \cos (q)+\sin q \sin 180^{\circ}

Also, we know \sin 180^{\circ}=0 and \cos 180^{\circ}=-1

Substitute, we get,

\cos (180^{\circ}-q)=-1\cdot \cos (q)+\sin q \cdot 0

Simplify , we get,

\cos (180^{\circ}-q)=-\cos (q)

Hence, use difference identity to  prove the given result.

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a group of 266 people is called to jury duty in court. Each jury includes 12 jurors plus to alternates. How many complete juries
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3 years ago
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