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2 years ago

A spinner is divided into 8 equal sections numbered 1 through 8. which 2 events are disjoint?

Mathematics

1 answer:

Jlenok [28]2 years ago

7 0

Answer:

Spinning a number less than 4 and Spinning a 6

Hope this helps!

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Divide 8 by 10, then multiply g by the result

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80 Ikaw na bahala kung lalagyan Mona ng g yan o hindi

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2 years ago

Quiz What is 4% 125?

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The answer to this is 5

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2 years ago

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I need help graphing this plz

sweet-ann [11.9K]

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The point is (2,-2)

Explanation:

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2 years ago

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Given that α and β are the roots of the quadratic equation <img src="https://tex.z-dn.net/?f=2x%5E%7B2%7D%20%2B6x-7%3Dp" id="Tex

siniylev [52]

Answer:

$\large \boxed{\sf \ \ \ p=-11 \ \ \ }$

Step-by-step explanation:

Hello,

$\alpha \text{ and } \beta \text{ are the roots of the following equation}$

$2x^2+6x-7=p$

It means that

$2\alpha^2+6\alpha-7=p \\\\2\beta ^2+6\beta -7=p \\\\$

And we know that

$\alpha= 2\cdot \beta$

So we got two equations

$2(2\beta)^2+6\cdot 2 \cdot \beta -7=p \\\\8\beta^2+12\beta -7=p\\\\ and \ 2\beta ^2+6\beta -7=p \ So \\\\\\8\beta^2+12\beta -7 = 2\beta ^2+6\beta -7\\\\6\beta^2+6\beta =0\\\\\beta(\beta+1)=0\\\\ \beta =0 \ or \ \beta=-1$

For $\beta =0, \ \ \alpha =0, \ \ p = -7$

For $\beta =-1, \ \ \alpha =-2, \ \ p= 2-6-7=-11, \ p=2*4-12-7=-11$

I assume that we are after two different roots so the solution for p is p=-11

b) $\alpha +2 =-2+2=0 \ and \ \beta+2=-1+2=1$

So a quadratic equation with the expected roots is

$x(x-1)=x^2-x$

Hope this helps.

Do not hesitate if you need further explanation.

Thank you

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2 years ago

Arrange the following numbers in order from greatest to least 7,361; 7,136; 7,613

d1i1m1o1n [39]

7,613 ,7,361,7,136

hope that helped

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2 years ago

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