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3 years ago

I dont understand this...#8 solve for j

Mathematics

2 answers:

Illusion [34]3 years ago

8 0

j= h-4/k

Hope this helps :)

sergij07 [2.7K]3 years ago

7 0

j=h over k - 4 over k

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Six added to twice Eric's age is the same is four times his age minus 4how old is Eric

FrozenT [24]

He is 5. 5 plus 5 is 10 plus 6 is 16. And 5 times 4 is 20 minus 4 is 16

3 0

3 years ago

6 high school seniors choose from among 20 quotes for their yearbook. What is the probability that at least 2 of them choose the

shusha [124]

Using the binomial distribution, it is found that there is a 0.0328 = 3.28% probability that at least 2 of them choose the same quote.

<h3>What is the binomial distribution formula?</h3>

The formula is:

$P(X = x) = C_{n,x}.p^{x}.(1-p)^{n-x}$

$C_{n,x} = \frac{n!}{x!(n-x)!}$

The parameters are:

x is the number of successes.

n is the number of trials.

p is the probability of a success on a single trial.

In this problem, we have that:

There are 6 students, hence n = 6.

There are 20 quotes, hence the probability of each being chosen is p = 1/20 = 0.05.

The probability of one quote being chosen at least two times is given by:

$P(X \geq 2) = 1 - P(X < 2)$

In which:

P(X < 2) = P(X = 0) + P(X = 1).

Then:

$P(X = x) = C_{n,x}.p^{x}.(1-p)^{n-x}$

$P(X = 0) = C_{6,0}.(0.05)^{0}.(0.95)^{6} = 0.7351$

$P(X = 1) = C_{6,1}.(0.05)^{1}.(0.95)^{5} = 0.2321$

Then:

P(X < 2) = P(X = 0) + P(X = 1) = 0.7351 + 0.2321 = 0.9672.

$P(X \geq 2) = 1 - P(X < 2) = 1 - 0.9672 = 0.0328$

0.0328 = 3.28% probability that at least 2 of them choose the same quote.

More can be learned about the binomial distribution at brainly.com/question/24863377

6 0

2 years ago

C- 14b=<br><br> if c equals -7 and b equals 1/7

Andrew [12]

-7 -14(1/7)

remove parenthesis

14 * 1/7 = 2 (14/1 * 1/7 = 2/1 which we reduce to just 2)

-7 -2

-9

8 0

2 years ago

Given that x = 7, write an equation that contains two different equivalent expressions each including at least one variable (x)

inna [77]

Well here are two equivalent different expressions of my making that you could use for this question.

f(x) = 2x - 7
g(x) = 3x - 28 / 2

When x = 7, these two different expressions will equate to the same value of 7. If you meant something else let me know, otherwise this is what you should put for your essay-question.

3 0

3 years ago

Pls help I’ll brainlest ASAP

Volgvan

Answer:

Step-by-step explanation:

5 0

2 years ago