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3 years ago

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Rita is making a beaded bracelet. She has a collection of 160 blue beads, 80 gray beads, and 240 pink beads. What is the estimat

ed probability that Rita will need to pick at least five beads before she picks a gray bead from her collection? Use the table of randomly generated outcomes to answer the question. Each letter represents the first letter of the bead color.

1 answer:

a_sh-v [17]3 years ago

7 0

Step-by-step explanation:

Given that Rita is making a beaded bracelet. She has a collection of 160 blue beads, 80 gray beads, and 240 pink beads. We are to calculate the probability that Rita will need to pick atleast 5 beads before she picks a grey bead from her collection.

Prob for drawing atleast 5 beads before she picks a grey bead from her collection

= 1-Prob for drawing atleast one grey beed in the first 5 draws.

(Because these two are complementary events)

no of grey beeds drawn in first 5 trials is

Bi=(5,1/6)

Prob for drawing atleast one grey beed in the first 5 draws.

=1-Prob of no grey

Hence required prob=P(X=0 in first 5 draws)

= 0.4018

6th beeds onwards can be grey also.

Nearest answer is c)0.45

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Answer:

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Step-by-step explanation:

We know that the contrapositive of a conditional statement of the form "If p then q" is termed as "If ~q then ~p".

In other words, it is symbolically represented as:

' ~q ~p is the contrapositive of p q '

For example, the contrapositive of "If it is a rainy day, then they suspend the match" is "If they do not suspend the match, then it won't be a rainy day."

Given

p: 2x -5=5

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As the contrapositive of a conditional statement of the form "If p then q" is termed as "If ~q then ~p

Thus, we conclude that:

If 4x - 6≠4, then 2x–5≠5 is the contrapositive of a conditional statement if 2x -5=5, then 4x-6=14.

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2 years ago

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Evgesh-ka [11]

Answer:

$Bill\to 9\ years$

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Step-by-step explanation:

Let

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$B \to Bill$

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$H - 2 = 2 * (B -2)$

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$H -2 =2B - 4$

Add 2 to both sides

$H -2+2 =2B - 4+2$

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Substitute $H = B + 7$

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Collect like terms

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Substitute $B = 9$ in $H = B + 7$

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3 years ago

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Andreas93 [3]

Answer:

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Step-by-step explanation:

see the attached figure to better understand the problem

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3 years ago

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Answer:

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Step-by-step explanation:

Given [Missing from the question]

$(8).\ (-6,-2)\ \\ (9).\ (-12,18)\ \\ (10).\ (2,0)$

Required

Write a system of linear equations

The solutions to this question is open and have different solutions

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So, the equations are:

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$x + y = 2$ and $x - y = 2$

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2 years ago