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Mariulka [41]
3 years ago
15

What are the solutions to the quadratic equation 4x^2-9x-9=0?

Mathematics
2 answers:
IrinaVladis [17]3 years ago
7 0

For this case we have the following quadratic equation:

4x ^ 2-9x-9 = 0

We can factor the equation to find the roots of the polynomial,

We have then:

(x-3) (4x + 3) = 0

Therefore, the solutions of the equation are given by:

Solution 1:

x-3 = 0\\x = 3

Solution 2:

4x + 3 = 0

x = -\frac{3}{4}

Answer:

The solutions to the quadratic equation are:

x = 3

x = -\frac{3}{4}

gavmur [86]3 years ago
4 0
X = 3, -
 \frac{3}{4}
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The lines below are parallel. If the slope of the solid line is –3, what is the slope of the dashed line?
stepladder [879]

Answer:

-3

Step-by-step explanation:

parallel lines always have the same slope, the y-intercepts will differ

8 0
3 years ago
How many square corners does a pentagon have
SIZIF [17.4K]
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3 0
3 years ago
Someone that understand this can help me out?
Kryger [21]
Plug in -2 to x in the formula
So f(-2)= ((-2)+1)^2
Your answer should be: 1
7 0
3 years ago
Calculate the average (arithmetic mean) of the list of numbers shown in the table. (rounded to the nearest tenth) A) 35.2 B) 39.
jenyasd209 [6]
<h3><u>Given Numbers:-</u></h3>
  • 23, 33 ,33 ,27 ,25 ,68 ,27 ,44 ,72

<h3><u>To Find:-</u></h3>
  • average of this set of numbers

<h3><u>Solution</u>:-</h3>

\green{ \underline { \boxed{ \sf{Average = \frac{Sum \:of \: observation}{Number \:of \: observation}}}}}

\longrightarrow Here, no of observation are 9

Now,

\begin{gathered}\implies \small \sf Average =\frac{23+33+33+27+25+68+27+44+72}{9}\\\end{gathered}

\begin{gathered}\\\implies \small \sf Average =\frac{56+60+93+71+72}{9}\\\end{gathered}

\begin{gathered}\\\implies \sf Average =\frac{116+164+72}{9}\\\end{gathered}

\begin{gathered}\\\implies \sf Average =\frac{352}{9}\\\end{gathered}

\begin{gathered}\\\implies \sf Average = 39.1 \\\end{gathered}

\longrightarrowThe Average of given set of numbers is 39.1 .

∴ Option C) is correct ✔️

3 0
2 years ago
Read 2 more answers
10
hjlf

Answer:

1) {0,1,4}

Step-by-step explanation:

(x,y)

domain is x

range is y

so in this case the domain is 0,1,4    

6 0
3 years ago
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