Please HELP! what is −1/4 ⋅ (−6/11)?

Mathematics

2 answers:

Gnesinka [82]10 months ago

4 0

The answer to your question is,……….7/11

Setler [38]10 months ago

3 0

Answer:

$\frac{3}{22}$

or 0, 14 rounded off to two dp

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Mohamed and Li Jing were asked to find an explicit formula for the sequence -5\,,-25\,,-125\,,-625,...−5,−25,−125,−625,...Minus,

Nataly [62]

Answer:

Li Jing

Step-by-step explanation:

Given the sequence:

-5,-25,-125,-625,...

Mohamed's Formula is given as: $g(n)=-5\cdot5^{\large{n}}$

Using Mohamed's formula:

$When\: n=1,g(n)=-5\cdot5^{\large{n}}=-5\cdot5^{1}=-25\\When\: n=2,g(n)=-5\cdot5^{\large{n}}=-5\cdot5^{2}=-125\\$

Li Jing's Formula is given as: $g(n)=-5\cdot5^{\large{n-1}}$

Using Mohamed's formula:

$When\: n=1,g(n)=-5\cdot5^{\large{n-1}}=-5\cdot5^{1-1}=-5\\When\: n=2,g(n)=-5\cdot5^{\large{n-1}}=-5\cdot5^{\large{2-1}}=-25\\$

We can see that Li Jing's Formula produces the gien sequence.

Li Jing is Right.

4 0

2 years ago

II. We learned in Exercise 3.25 that about 70% of 18-20 year olds consumed alcoholic beverages in 2008. We now consider a random

Svetllana [295]

Answer:

You would expect for 35 people to have consumed alcoholic beverages.

Step-by-step explanation:

For each person, there are only two possible outcomes. Either they consumed alcoholic beverages, or they did not. The probability of a person having consumed alcoholic beverage is independent of any other person. This means that the binomial probability distribution is used to solve this question.

Binomial probability distribution

Probability of exactly x successes on n repeated trials, with p probability.

The expected value of the binomial distribution is:

$E(X) = np$