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mixer [17]
3 years ago
8

In Zoe's class, 4/5 of the students have pets. Of the students who have pets, 1/8 have rodents. What fraction of the students in

Zoe's class have pets that are rodents? What fraction of the students in Zoe's class have pets that are not rodents?
Mathematics
1 answer:
scoundrel [369]3 years ago
8 0
Yoir answer would be 27 out of 40.
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Using these complex zeros (1,1,-1/2,2+i,2-i) factor f(x)=-2x^5 +11x^4 -22x^3 +14x^2 +4x -5
Marianna [84]
\bf \begin{cases}
x=1\implies &x-1=0\\
x=1\implies &x-1=0\\
x=-\frac{1}{2}\implies 2x=-1\implies &2x+1=0\\
x=2+i\implies &x-2-i=0\\
x=2-i\implies &x-2+i=0
\end{cases}
\\\\\\
(x-1)(x-1)(2x+1)(x-2-i)(x-2+i)=\stackrel{original~polynomial}{0}
\\\\\\
(x-1)^2(2x+1)~\stackrel{\textit{difference of squares}}{[(x-2)-(i)][(x-2)+(i)]}

\bf (x^2-2x+1)(2x+1)~[(x-2)^2-(i)^2]
\\\\\\
(x^2-2x+1)(2x+1)~[(x^2-4x+4)-(-1)]
\\\\\\
(x^2-2x+1)(2x+1)~[(x^2-4x+4)+1]
\\\\\\
(x^2-2x+1)(2x+1)~[x^2-4x+5]
\\\\\\
(x^2-2x+1)(2x+1)(x^2-4x+5)

of course, you can always use  (x-1)(x-1)(2x+1)(x²-4x+5)  as well.
7 0
3 years ago
What is 15.5 units down? negative or positive?
olga2289 [7]
It would be negative seeing the key word is down. (:
Hope I could help!
7 0
3 years ago
Read 2 more answers
5. The number −6 is 2 more than an unknown number. Find the unknown number.
Mariana [72]

Answer:

-4

Step-by-step explanation:

-6 - 2 = -4

3 0
3 years ago
Hurry please!!! Quickly! I have to turn this in in 3 minutes---this is the last problem!!!<br> thx
Mama L [17]

1 = 84

3 = 252

7 = 588

10 = 840

5 0
3 years ago
Read 2 more answers
What is the value of x
WITCHER [35]

Answer:

x =68

Step-by-step explanation:

The sum of the angles of a triangle are 180

37+75+x = 180

Combine like terms

112+x = 180

Subtract 112 from each side

112+x-112=180-112

x =68

6 0
3 years ago
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