The answer is: " 1024π units² " ; or; " 3215.36 units² " .
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A = π * r² ;

A = π * 32² = 1024 π units² ;

or, using "3.14" for "π" ;

1024 * π = 1024 * (3.14) = 3215.36 units² .
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8 0

2 years ago

+ PRINCIPLES OF MATHEMATICS

GREYUIT [131]

Answer:

$9,840

Step-by-step explanation:

Let the money earned from college be 'x'.

Given:

Total money earned from the two jobs = $50,450

Money earned at the store = 1250 + 4(Money earned at college)

∴ Money earned at the store = $1250 +4x$

Now, total money earned by Erica is the sum of money earned at store and college. Therefore,

Total money = Money at store + Money at college

$50450=1250+4x+x\\5x+1250=50450\\5x=50450-1250\\5x=49200\\x=\frac{49200}{5}=\$9840$

Therefore, the money earned by Erica from her job at the college is $9,840.

3 0

2 years ago