2 years ago

If pablo invests $4,200 for 3 years and earns $630, what is the simple interest rate?

Mathematics

1 answer:

Naya [18.7K]2 years ago

4 0

The awifnhf fab ejsksnxncjci

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nexus9112 [7]

Answer:

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Step-by-step explanation:

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3 years ago

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Natalija [7]

I think that it is the first line. I am not really sure what the question is asking so I may be wrong. Sorry if I can’t help

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3 years ago

Solve the equation n2 − 29 = 260 by using square roots.

umka2103 [35]

Answer:

Option A, $n =$ ± $17$

Step-by-step explanation:

Step 1: Add 29 to both sides

$n^2 - 29 = 260$

$n^2 - 29 + 29 = 260 + 29$

$n^2 = 289$

Step 2: Square root both sides

$\sqrt{n^2} = \sqrt{289}$

$n =$ ± $17$

Answer: Option A, $n =$ ± $17$

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2 years ago

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slava [35]

Step-by-step explanation:

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3 years ago

Using the Quadratic Formula, which of the following is the solution to the quadratic equation x2 + 2x - 3 = 0?

saw5 [17]

Answer: x=1 or x=-3

Step-by-step explanation:

Quadratic formula is $-b+-\sqrt{b^{2}-4ac } /2$

a=1 b=2 c=-3

Substitute

$(-2+-\sqrt{2^{2}-4(1)(-3) }) /2\\(-2+-\sqrt{4+12}) /12\\(-2+-\sqrt{16}) /2\\(-2+-4) /2\\x=\frac{-2+4}{2} \\x=\frac{-2-4}{2} \\\\\\Simplify\\x=\frac{2}{2} \\\\x=\frac{-6}{2} \\\\Simplify\\x=1\\x=-3$

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3 years ago