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taurus [48]
3 years ago
5

What is the midpoint of 9.9 of 10

Mathematics
1 answer:
Pani-rosa [81]3 years ago
8 0
\frac{9.9+10}{2}  \\  \frac{19.9}{2}  \\ 9.95

The midpoint is 9.95. Hope this helps!
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Elimination using addition and subtraction. <br> -4x+4y=-20<br> -2x+4y=-2
goldfiish [28.3K]

I would subtract the 2nd from the first one

so -4x - -2x = -2x

4y - 4y = 0

-20 - -2 = -18


-2x = -18

now I would divide that by -2 to get the value for x

so no we have x = 9


now you just have to substitute that into one of the equations and simplify to get y


-2 X 9 + 4y = -2

-18 + 4y = -2

4y =16

y = 4



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4 years ago
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The radius of a circle with an area of 60 square centimeters is represented by the expression √60/π centimeters. What is another
monitta

Answer:

r= 2 √(15/π)

Step-by-step explanation:

Given that :

Area of circle =60sq cm

radius=√60/π

Area=\pi r^2\\60=\pi r^2\\\\\sqrt{\frac{60}{\pi}}=r\\\\\sqrt{\frac{15\times 4}{\pi}}=r\\2\sqrt{\frac{15}{\pi}}=r

Hence the radius can be written as 2 √(15/π)

3 0
3 years ago
Solve 8[7 - (6x - 6)] + 6x = 0.
dsp73
Its x = 52/21 = 2.47
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6.40×6=?????????????
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Answer:

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Step-by-step explanation:

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Consider the polynomial function (x+3)(x+9)(x-8)=0. which of the following are zeros of the function? Select all that apply. -9
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Zeros are:

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Looks like only -3 and -9 are offered as answers, though.
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