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damaskus [11]
3 years ago
7

Plzzzzzzzz help me!!!!!!!!!

Mathematics
1 answer:
Vlad1618 [11]3 years ago
7 0

The size of the lengths and angles aren't effected by arotation. The image and pre image will be congruent, just in different places

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Which are irrational square root of 100, square root of 17, square root of 47, square root of 25
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Answer: the square root of 17 and the square root of 47 are both irrational because they have continuous numbers that don’t repeat.

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Use the parabola tool to graph the quadratic function f(x)=−12x2+7. Graph the parabola by first plotting its vertex and then plo
Fudgin [204]
First we find the vertex of parabola f(x)=-12 x^{2} +7

The vertex of parabola is ( \frac{-b}{2a},f( \frac{-b}{2a}))
Here,
b = coefficient of x term
a = coefficient of x² term

For given parabola, b = 0 , a = -12

So,
\frac{-b}{2a}= \frac{0}{-24} =0

And,

f( \frac{-b}{2a} )=f(0) = -12(0)+7=7

Thus the vertex of parabola is (0, 7)

To find another point on parabola, substitute x by 1.

f(1)=-12( 1^{2}) +7=-12+7=-5

So the second point on parabola is (1,-5)

The plot of parabola is shown in image below:

5 0
3 years ago
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We can assume that the decline in the population is an exponential decay.

An exponential decay can be written as:

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And we know that after 6 hours, the popuation was 500,000:

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then we have that:

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Then our equation is:

P(t) = 800,000*0.925^t

Now, the population after 24 hours will be:

P(24) = 800,000*0.925^24 = 123,166

5 0
3 years ago
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