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3 years ago

3. Given: a+b=12 and ab=9 Use (a + b)2 to find a² +bº. (Do not solve for a and b individually)

Mathematics

1 answer:

LenKa [72]3 years ago

7 0

Answer:

a²+b²=126

Step-by-step explanation:

(a+b)²=a²+b²+2ab

(12)²=a²+b²+2×9

144=a²+b²+18

a²+b²=144-18=126

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Sergio039 [100]

Answer:

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Step-by-step explanation:

Multiply the number of games by the percentage.

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John borrowed $ from bank for 3 years at a rate of 10%

garik1379 [7]

<h3>Given:</h3>

P= $12500
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P= Principal amount
R= Rate of interest
T= Time period

The simple interest
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<h3>Solution:</h3>

$\large\boxed{Formula: I= \frac{PRT}{100}}$

First, we'll have to multiply, principal amount (12500), rate (10) and time period (3).

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Now, we'll have to divide the amount (375000) by 100.

$\frac{375000}{100}$

I=$3750

Now, we can find the total amount paid.

$\large\boxed{A=SI+P}$

Let's substitute according to the formula.

$A=3750+12500$

A=$16250

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