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Brums [2.3K]
3 years ago
7

Which statement about the equation 3x ^ 2 + 9x - 12 = 0 is true ? 1 . The product of the roots is -12 . 2 The product of the roo

ts is -4 . 3 The sum of the roots is 3 . The sum of the roots is -9 .
Mathematics
1 answer:
svetlana [45]3 years ago
5 0

Answer:

Option : The product of the roots is - 4

Step-by-step explanation:

3x^2 + 9x - 12 = 0\\\\3x^2 + 12x - 3x - 12 = 0\\\\3x(x+4) -3(x+4) = 0\\\\(3x - 3) (x+ 4) = 0\\\\

Therefore the roots are -4 and 1

The product of the roots are -4 x 1 = -4

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Answer: 50

Step-by-step explanation:

From the question, we are informed that 1/3 of gym members say they spent 5 hours per week at the gym.

Assuming there are 150 people working out at the gym, the number of people that'll most likely spend 5 hours at the gym this week will be calculated by multiplying 1/3 by 150. This will be:

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8 0
3 years ago
Simplify 7x^2+ 5x+4x answer pls
SIZIF [17.4K]

Answer:

7x^2+9x

Step-by-step explanation:

Hope this helps...

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4 0
3 years ago
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Answer:

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Step-by-step explanation:

To find the surface area, use this rectangular prism surface area

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Surface Area =

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Example: The surface area of a rectangular prism with length of

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Calculated out this gives a surface area of 94 Square Inches.

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Answer:

3 standard deviations

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3 years ago
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