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DanielleElmas [232]

3 years ago

15

Write an equation to find the amount of interest $450,000 earns in 1 year at a simple interest rate of 3.5%. what is the amount

of interest?

1 answer:

skelet666 [1.2K]3 years ago

8 0

Answer:

$15750

Step-by-step explanation:

write the rule of simple interest, it's:

I=PRT

P=$450000 R=0.035 T=1

I=450000×0.035×1

I=$15750

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Answer:

Identity is verified.

Step-by-step explanation:

We have to verify the identity $cos(x+\frac{\pi }{2}) = (- sinx)$

To prove any identity we always prove one side(either left hand side or right hand side) of the equation equal to the other side.

In this identity we take the left hand side first

$cos(x+\frac{\pi}{2})$

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$= cosx\times0-sinx\times1$

$= 0-sinx$

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Hence identity is proved.

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