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Talja [164]
3 years ago
10

In the data set below, what is the lower quartile? 1 2 3 3 7 8 8

Mathematics
1 answer:
Levart [38]3 years ago
3 0
Is this all the question???
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Explain the special pattern for sketching a parabola
Lady bird [3.3K]

Answer:

the parabola can be written as:

f(x) = y = a*x^2 + b*x + c

first step.

find the vertex at:

x  = -b/2a

the vertex will be the point (-b/2a, f(-b/2a))

now, if a is positive, then the arms of the parabola go up, if a is negative, the arms of the parabola go down.

The next step is to see if we have real roots by using the Bhaskara's equation:

x =  \frac{-b +-\sqrt{b^2 -4ac} }{2a}

Now, draw the vertex, after that draw the values of the roots in the x-axis, and now conect the points with the general draw of the parabola.

If you do not have any real roots, you can feed into the parabola some different values of x around the vertex

for example at:

x =  (-b/2a) + 1 and x =  (-b/2a) - 1

those two values should give the same value of y, and now you can connect the vertex with those two points.

If you want a more exact drawing, you can add more points (like x =  (-b/2a) + 3 and x =  (-b/2a) - 3) and connect them, as more points you add, the best sketch you will have.

8 0
3 years ago
There are 446 highlighters in a carton there are 38 cartons. What is the total amount of highlighters in all Carton. Please show
Kisachek [45]
You would do 38 times 446 which equals 16056
8 0
3 years ago
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Issuing a note payable for cash automatically results in a
Dmitry_Shevchenko [17]
Sry not sure this one is very confusing
5 0
3 years ago
Which graph is an example of a function?<br> A) <br> B) <br> C) <br> D)
Serga [27]
A function can only have one y value for every x value.

the answer is D
4 0
3 years ago
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47 decreased by nine times d what's the mathematical expression
Lilit [14]
Nine times d = 9*d = 9d

47 decreased by 9d = 47 - 9d

= 47 - 9d.
8 0
3 years ago
Read 2 more answers
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