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dybincka [34]
2 years ago
15

Simplify problem....​

Mathematics
1 answer:
Pie2 years ago
6 0

Step-by-step explanation:

a=5x^3

b=7y^9

that is the answer

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Simplify (3x − 8) + (2x + 5) − (4x − 8).<br> A) x − 11 <br> B) x + 5 <br> C) x + 21 <br> D) 9x + 5
lozanna [386]

Answer:

B

Step-by-step explanation:

3x-8+2x+5-4x+8

3x+2x-4x    -8+5+8

     x        +        5      

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3 years ago
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Find all the zeros of the equation
lapo4ka [179]

Divide both sides by -3, and replace x^2 with y. Then

-3x^4+27x^2+1200=0\iff y^2-9y-400=0

Factorize the quadratic in y to get

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which in turn means

x^2=-16,x^2=25

But x^2\ge0 for all real x, so we can ignore the first solution. This leaves us with

x^2=25\implies x=\pm\sqrt{25}=\pm5

If we allow for any complex solution, then we can continue with the solution we ignored:

x^2=-16\implies x=\pm\sqrt{-16}=\pm i\sqrt{16}=\pm4i

6 0
3 years ago
Which should be calculated first to solve this story problem?  Marta has had a health club membership for 5 weeks. She goes to t
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What property is (3x5)x2=5x(2x3)
Anettt [7]
(3x5)X2=5x(2x3)
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7 0
3 years ago
What is 7 and 1/5 written as a percent?
Gennadij [26K]

7 \frac{1}{5}
equivalent to

7.2
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750\%
5 0
3 years ago
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