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Vilka [71]
3 years ago
6

Can someone please help me solve this quadratic equation? x2+9x+9=0

Mathematics
1 answer:
lesya692 [45]3 years ago
5 0
X≈1.4589803,-7.85410196
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The table shows values represented by an exponential function what is the average rate of change for the function for the interv
emmasim [6.3K]

\boxed{ARC=1477.329}

<h2></h2><h2>Explanation:</h2>

Hello! remember you have to write complete questions in order to get good and exact answers. Here you haven't provided any Table, so I've chosen an exponential function that follows this rule:

f(x)=\frac{e^{2x}}{2000}

Some x and y-values are given in the following table:

\begin{array}{cc}x & y\\5 & 11.013\\6 & 81.379\\7 & 601.3\\8 & 4443\\9 & 32829\end{array}

Let's take the average rate of change from x = 5 to x = 8:

ARC=\frac{f(x_{2})-f(x_{1})}{x_{2}-x_{1}} \\ \\ ARC=\frac{4443-11.013}{8-5} \\ \\ \boxed{ARC=1477.329}

<h2>Learn more:</h2>

Average Rate of Change: brainly.com/question/14013912

#LearnWithBrainly

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Solve for y 5(y 4)-7y=8
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3 years ago
What is the value of the expression?
Blababa [14]

Answer:

- \frac{9}{10}

Step-by-step explanation:

Step 1: Add the numerator fractions.

2/5 + 3/10

Here we have to find LCD, the LCD of 5 and 10 is 10

                                         (2*2) + 3         4 + 3

Therefore,  2/5 + 3/10 = ---------------  = ------------------

                                          10                     10

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Step 2: Now substitute 2/5 + 3/10 = 7/10 in the given fraction, we get


 7/10

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If we have fraction over fraction, we have to find the reciprocal of denominator fraction and multiply.

The reciprocal of -7/9 is -9/7

Step 3: Now multiply 13/10 and -9/7

= (7/10) x (-9/7)

= -9/10

=-9/10

The answer is  -\frac{9}{10}

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