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qaws [65]
3 years ago
15

Solve the equation 9y^3+8y=4y+18y^2

Mathematics
1 answer:
kari74 [83]3 years ago
3 0
9y^3+8y=4y+18y^2
9y^3-18y^2+4y=0

*Divide the whole thing by y

9y^2-18y+4=0

*use quadratic formula to solve
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3 years ago
6 x 10 5 is how many times the value of 3 x 10 (Hint: Write your answer in standard form.)​
JulijaS [17]

Answer:

0.000036

Explanation:

When multiplying a number by 10 to the power of a positive exponent (e.g.  

10

3

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4.5

⋅

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4500

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When multiplying a number by 10 to the power of a negative exponent (e.g.  

10

−

4

), move the decimal in the number (the absolute value of) that many spaces to the left (e.g.  

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⋅

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For  

3.6

⋅

10

−

5

, move the decimal five spaces to the left:

0.000036

Step-by-step explanation:

5 0
3 years ago
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Aleksandr-060686 [28]

Check the picture below.

6 0
3 years ago
A cyclist travels 7.7 km in 30 minutes. <br> What is his average speed in km/h?
NARA [144]
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4 0
2 years ago
50 POINTS! PLZ HELP NO ONE HELPED ME LAST TIME BUT I HOPE SOMEONE WILL THIS TIME! ALSO DON'T KNOW WHY I'M WRITING IN ALL CAPS
dalvyx [7]

Answer:

\frac{90}{3.5}

Step-by-step explanation:

Let x be the number of helium balloons they can buy

  1. Write it out: 35 + 3.50x = 125
  2. Subtract 35 from each side, so it now looks like this: 3.50x = 90
  3. Divide each side by 3.50 to cancel out the 3.50 next to x. It should now look like this: x = \frac{90}{3.5}  

I hope this helps!

5 0
3 years ago
Read 2 more answers
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