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mylen [45]
3 years ago
10

PLEASE HELP IMPORTANT MATH

Mathematics
1 answer:
aksik [14]3 years ago
8 0

Answer:

The answer to your problem is b because if she wants to spend 20 minutes on the piano and she has 50 minutes until dinner than she would have 30 minutes on the computer.

Step-by-step explanation:

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Which are steps the could be used to slove 0=9(x2+6x)-18 by completing the square
Elis [28]

Answer:

(x+3)²-11=0

Step-by-step explanation:

0=9(x2+6x)-18

0= 9x² +54x-18

0= 9( x²+6x-2)    taking 9 common

0= x² +6x-2 (breaking the mid term to find the second element of the square

0 = (x)² +2(x)(3) +(3)² -2 -9 adding and subtracting the second element

0= (x+3)² -11 summing up

4 0
3 years ago
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If f(x) = |x - 4| + 5, find f(1)
tia_tia [17]
I believe 8 is the answer 
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3 years ago
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A sample of gold has a mass of 579 g. The volume of the sample is 30 cm3. What is the density of the gold sample?
Ugo [173]

The density of the gold sample is 19.3g/cm³

Let the mass of the gold sample be represented by m

m = 579 g

Let the volume of the gold sample be represented by V

V = 30 cm³

Let the density of the gold sample be represented by ρ

The formula for the density is:

Density = \frac{Mass}{Volume}

\rho = \frac{m}{V} \\\rho = \frac{579}{30} \\\rho = 19.3 g/cm^3

The density of the gold sample is 19.3g/cm³

Learn more here: brainly.com/question/17780219

3 0
3 years ago
1)10 = z+ 6
Fofino [41]
1. Z=4 10-6
2 y= 6 48/8
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If Nobody's Perfect, But Practice Makes Perfect. Why Practice?
Scilla [17]
To be the best you can be at whatever you're practicing. Just because you can't be perfect doesn't mean you can't be very good at it.
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