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Masja [62]
4 years ago
15

What is the factorization of the polynomial 3x^2 + 11x + 6 ? Please show how you got the answer, thank you!

Mathematics
1 answer:
Alika [10]4 years ago
8 0
I used the generic rectangle/diamond method, although the quadratic formula would work just as well with a=3, b=11, c=6.  Put that into the quadratic formula\frac{-b+/- \sqrt{b ^{2}-4ac } }{2a} to get that your factors are x = -2/3 and -3.  Putting those into factorization form you get the 2 factors as (3x+2)(x+3)

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What is (22.8 + 14.5)×(22.9 + 12.1)
SSSSS [86.1K]

Answer:

that would be 1305.5

Step-by-step explanation:

6 0
3 years ago
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A town is planning a playground. It wants to fence in a rectangular space using an existing wall. What is the greatest area it c
777dan777 [17]

Answer:

1250 ft^{2}

Step-by-step explanation:

We are given that the playground is fenced on three sides of the playground and the four side has an existing wall.

Let the length of the rectangle be 'X' feet and width be 'Y' feet.

As the fencing is done using 100 feet of fence. We get the relation between the sides and the fence as, X + 2Y = 100.

As, X + 2Y = 100 → X = 100 - 2Y

Now, the area of the rectangle = XY = X × ( 100 - 2Y ).

i.e Area of the rectangle = -2Y^{2} +100Y.

The general form of a quadratic equation is y=ax^{2}+bx+c.

The maximum value of a quadratic equation is given by x=\frac{-b}{2a}.

Therefore, the greatest value of -2Y^{2} +100Y is at Y = \frac{-100}{2 \times -2} = \frac{-100}{-4} = 25.

Thus, Y = 25 and X = 100 - 2Y → X = 100 - 2 × 25 → X = 50.

Hence, the area of the rectangle is XY = 50 × 25 = 1250 ft^{2}.

3 0
4 years ago
HELP!!!!! What is the length plz help me besties
Nesterboy [21]

Answer: 30 inches

Step-by-step explanation:

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240 = 8x = 30

8 0
3 years ago
A car valued at $15,000 depreciates 13% per year. What is the
Vinil7 [7]

Answer:

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Step-by-step explanation:

3 0
4 years ago
Y= f(x) = (-4)^x find f(x) when x = -3
Komok [63]
y=f(x)=(-4)^{x}

substitute the value of x = -3 to the equation:

y=f(-3)=(-4)^{-3}=\left(-\dfrac{1}{4}\right)^3=-\dfrac{1^3}{4^3}=-\dfrac{1}{64}
4 0
3 years ago
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