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r-ruslan [8.4K]
3 years ago
9

I don’t understand plz help

Mathematics
1 answer:
ycow [4]3 years ago
5 0

A. 4 green counters

Reason -

There is 50% chance to get green counter so we halve the 8.

B. 6 white counters

Reason -

75% is the chance to get white counter so 75% of 8 is 6.

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let a,b,c,d be four integers (not necessarily distinct) in the set {1,2,3,4,5}. the no. of polynomials x^4+ax^3+bx^2+cx+d which
Eddi Din [679]
By either long or synthetic division, it's easy to show that

\dfrac{x^4+ax^3+bx^2+cx+d}{x+1}=x^3+(a-1)x^2+(-a+b+1)x+(a-b+c-1)-\dfrac{a-b+c-d-1}{x+1}

The quartic will be exactly divisible by x+1 when the numerator of the remainder term vanishes, or for those values of a,b,c,d such that

a-b+c-d-1=0

I'm not sure how to count the number of solutions (software tells me it should be 80), but hopefully this is a helpful push in the right direction.
8 0
3 years ago
Are 0.6600 and 0.66 equivalent decimals?<br> yes<br> no
malfutka [58]

Answer:

Yes.

Step-by-step explanation:

0.66 is 0.6600.

7 0
2 years ago
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\frac{5}{9}+\frac{y}{3}<br> Welp
Sergeeva-Olga [200]
The answer is 3y+5/9.
6 0
3 years ago
Help me pls and pls explain
andrey2020 [161]

Answer:

Step-by-step explanation:

I am not clear your question.

5^(-2) / ( 5^(-3) * 5^(4))

When base is equal at multifaction index should be add.

ie. (-3)  + 4 =1

5^(-2) / ( 5^((-3) +4))

5^(-2) / ( 5^(1))

When base is equal at division index should be substract.

5^(-2) / ( 5^(1))

5^((-2 )+ (-1) )

5^(-3)

We know a^(-2)= 1/ a^2

1/ 5^(3)

5 0
2 years ago
The diagram shows an isosceles right
babymother [125]

Answer:AB= 1.0

AC=1.0

BC=1.4

Step-by-step explanation:

5 0
3 years ago
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