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inn [45]
3 years ago
10

Number 9 plssss I need help

Mathematics
1 answer:
soldi70 [24.7K]3 years ago
5 0
For number 9 the answer is B
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nevsk [136]
You can graph the answer on cymath.com

3 0
3 years ago
2x² - 5x+1 has roots alpha and beta. Find alpha⁴+beta⁴ without solving the equation.
shepuryov [24]

Answer:

Step-by-step explanation:

\alpha+\beta=\dfrac{5}{2} \\\\\alpha*\beta=\dfrac{1}{2} \\\\\alpha^2+\beta^2=\dfrac{21}{4} \ (see\ previous\ post)\\\\(\alpha+\beta)^4=\dfrac{625}{16} \\\\=\alpha^4+\beta^4+4*\alpha^3*\beta+6*\alpha^2*\beta^2+4*\alpha*\beta^3\\\\=\alpha^4+\beta^4+4*(\alpha*\beta)(\alpha^2+\beta^2)+6*\alpha^2*\beta^2\\\\\alpha^4+\beta^4=(\alpha+\beta)^4-4*(\alpha*\beta)(\alpha^2+\beta^2)-6*\alpha^2*\beta^2\\\\= \dfrac{625}{16} -4*\dfrac{1}{2} *\dfrac{21}{4} -6*(\dfrac{1}{2})^2 \\\\

= \dfrac{625}{16}- \dfrac{168}{16}-\dfrac{24}{16}\\\\\\= \dfrac{433}{16}

7 0
3 years ago
Can someone please help me with this question?<br><br> Find the value of c-5 when c=14
vlada-n [284]
1) C-5
2)14-5
3)9=The value!
I hope this helps!
3 0
3 years ago
Whats 10 divide 8 by doing long division? HELP
olganol [36]

Your answer is 1.25

dividing:

Set up the equation. On a piece of paper, write the dividend (number being divided) on the right, under the division symbol, and the divisor (number doing the division) to the left on the outside. ...

Divide the first digit. ...

Divide the first two digits. ...

Enter the first digit of the quotient.

I hope it helps.

4 0
3 years ago
Read 2 more answers
Ken Ken 5x5 please help
Levart [38]

Answer:

5x5= 25

Step-by-step explanation:

5+5+5+5+5= 25

5 0
3 years ago
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