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alexdok [17]
3 years ago
12

Eli will photograph a wedding for a flat fee of $1000 or for an hourly rate of $120. For what lengths of time would the hourly r

ate be less expensive
Mathematics
1 answer:
Dennis_Churaev [7]3 years ago
8 0
How long would it take $120/hr to add up to $1000?

Divide $1000 by $120/hr:  

 $1000
----------- = 8 1/3 hours, or 8 hours 20 minutes.
$120/hr
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what is the area of a circle with radius of 7cm using 3.14 for pi and round to he nearest tenth plz hurry
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Answer:153.9 cm

Step-by-step explanation:

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5 0
3 years ago
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After being rearranged and simplified, which of the following equations could
masha68 [24]

Answer:

C and D

Step-by-step explanation:

The quadratic formula is

x= (-b±√b²-4ac)/2a

The formula uses the numerical coefficients in the quadratic equation.

The general quadratic equation is ax²+bx+c where a, b and c are the numerical coefficients

So, lets try and see;

A.

5x+4=3x^4-2\\\\=3x^4-5x-2-4\\=3x^4-5x-6\\a=3,b=-5,c=-6

But due to the fact that  in this equation you have x⁴, the equation is not a quadratic equation thus can not be solved using this formula

B

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C

9x+3x^2=14+x-1\\\\\\=3x^2+9x-x-14+1\\\\=3x^2+8x-13\\\\\\a=3,b=8,c=-13\\

D.

2x^2+x^2+x=30\\\\\\=3x^2+x-30\\\\\\a=3,b=1,c=-30

From the checking above, the equations will be C and D

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3 years ago
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attashe74 [19]
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Answer:

21/3.5 =6 inches

Step-by-step explanation:

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Aas is not d triangle buddy
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