3 years ago

7. (2x - 1)2 = 31 – 2x solve by factoring

Mathematics

1 answer:

dolphi86 [110]3 years ago

5 0

Answer:

21 i dont kmow

Step-by-step explanation:

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Find the sum of 2/6 +7/6

ladessa [460]

Answer:

your answer is 9/6, which simplifies to 3/2, or 1 1/2

Step-by-step explanation:

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2 years ago

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kaheart [24]

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2 years ago

To avoid detection at customs, a traveler places 6 narcotic tablets in a bottle containing 9 vitamin tablets that are similar in

lukranit [14]

Answer: $\dfrac{26}{27}$

Step-by-step explanation:

Given : To avoid detection at customs, a traveler places 6 narcotic tablets in a bottle containing 9 vitamin tablets that are similar in appearance.

Proportion of success : $p=\dfrac{6}{9}=\dfrac{2}{3}$

Sample size taken by customs oﬃcial : n= 3

Let x be a binomial variable that represents the tablets in the bottle.

Using Binomial probability formula :-

$P(X=x)=^nC_xp^x(1-p)^{n-x}$

The probability that the traveler will be arrested for illegal possession of narcotics = $P(x\geq1)=1-P(x=0)$

$1-^3C_0(\dfrac{2}{3})^0(1-\dfrac{2}{3})^3\\\\=1-(1)(1)(\dfrac{1}{3})^3\ [\becuase ^nC_0=1]\\\\=1-\dfrac{1}{27}=\dfrac{26}{27}$

Hence, the probability that the traveler will be arrested for illegal possession of narcotics = $\dfrac{26}{27}$

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3 years ago

What is the simplified version of 4+5y-6y+y

oee [108]

Answer:

Step-by-step explanation:

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PLEASE HELP!!! A group has at most $140 to spend on an event space. The inequality 15h + 40 140 represents the cost to rent the

Zielflug [23.3K]

9514 1404 393

Answer:

h ≤ 6 2/3

Step-by-step explanation:

The inequality is presumed to be ...

15h +40 ≤ 140

15h ≤ 100

h ≤ 6 2/3

The graph shows h ≥ 0, because the inequality is only reasonable for h ≥ 0.

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2 years ago