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erik [133]
3 years ago
15

What are the zeros of the quadratic function f(x) = 2x2 + 16x – 9?

Mathematics
1 answer:
Lena [83]3 years ago
7 0
To find the zeros of this equation you need to first set it equal to zero
2x2 + 16x - 9 = 0
But since you can't FOIL this equation you need to move the non-variable number over
2x2 +16x = 9
Now solve for x by pulling an x out of the equation
x(2x + 16) = 9
x = 9
2x +16 = 9
2x = -7
x = -7/2
So your zeros would be at x = 9, and -7/2
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sertanlavr [38]

Answer: The system consists of parallel lines

Step-by-step explanation:

Given system of lines :

y=\dfrac13x-4

3y-x=-7

Substitute y=\dfrac13x-4 in 3y-x=-7,  we get

3(\dfrac13x-4)-x=-7\\\\\Rightarrow\ x-12-x=-7\\\\\Rightarrow\ -12=-7 , which is not true.

That means , system has no solution.

i.e. they are representing parallel lines. [Parallel lines do not intersect and hence they do not have solution.]

6 0
2 years ago
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Answer:

<h2>4 + 3x</h2>

Step-by-step explanation:

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The sum of four and the product of three and a number x:

4 + 3x

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3 years ago
Sam made a password that consists of one letter followed by two digits. The two digits are different. How many possible password
slega [8]

Answer:

720

Step-by-step explanation:

8 0
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Step-by-step explanation:

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