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Dmitry [639]
3 years ago
13

Of 30 student, 1/3 play sports. Of those who play sports, 2/5 play soccer. How many students play soccer.

Mathematics
1 answer:
Katena32 [7]3 years ago
5 0

Answer:

12

Step-by-step explanation:

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If f(x)=-x^2+6x-1 and g(x)=3x^2-4x-1, find (f+g)(x)
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Answer:

(f+g)(x)= 2x²+2x-2

Step-by-step explanation:

-x²+6x-1+3x²-4x-1 can be found by combining like terms.

2x²+2x-2

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Can someone help me with this please? ​
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2 years ago
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gavmur [86]

Answer:

y + 2 = -2(x - 3)^2

Step-by-step explanation:

We can see immediately that the vertex is at (3, -2).  

The vertex form of the equation of a parabola is

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If the parabola opened upward, the equation would be y + 2 = 2(x - 3)^2.  But seeing that this particular parabola opens downward, the equation is

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3 years ago
The area of a rectangular rug is given by the trinomial r^2 - 8r - 33. What are the possible dimensions of the​ rug? Use factori
Arte-miy333 [17]
Solve for r using factoring:
Solve for r:
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The left hand side factors into a product with two terms:
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Split into two equations:
r - 11 = 0 or r + 3 = 0

Add 11 to both sides:
r = 11 or r + 3 = 0

Subtract 3 from both sides:
Answer:  r = 11 or r = -3
5 0
3 years ago
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