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3 years ago

14

7k = 3k - 36 It’s gotta be a step by step equation

1 answer:

vovikov84 [41]3 years ago

8 0

K=-9 Bc you move the variable to the left and then collect like terms and divide both sides

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Please help i am confusion

frez [133]

I think 6 is h & 4 is k

8 0

3 years ago

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What kind of probability is being used when one calculates the probability that a randomly selected adult who works from home an

olasank [31]

The kind of probability is being used when one calculates the probability that a randomly selected adult who works from home and has a bachelor's degree or higher is <em>relative frequency.</em> This probability is based on actual measurements, like a survey. Using this method will enable us to calculate for the probability of each variable occurring, or a combination of two or more variables with respect to the number of trials in the sample.

5 0

3 years ago

The firm is requested to send 3 employees who have positive indications of asbestos on to a medical center for further testing.

Rus_ich [418]

Answer:

0.0645 = 6.45% probability that exactly 10 employees will be tested in order to find 3 positives

Step-by-step explanation:

Binomial probability distribution

The binomial probability is the probability of exactly x successes on n repeated trials, and X can only have two outcomes.

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

In which $C_{n,x}$ is the number of different combinations of x objects from a set of n elements, given by the following formula.

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

And p is the probability of X happening.

40% of the employees have positive indications of asbestos in their lungs

This means that $p = 0.4$

a) Find the probability that exactly 10 employees will be tested in order to find 3 positives

2 within the first 9( $P(X = 2)$ when $n = 9$ ), and the 10th, with 0.4 probability. So

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

$P(X = 2) = C_{9,2}.(0.4)^{2}.(0.6)^{7} = 0.1612$

0.4*0.1612 = 0.0645

0.0645 = 6.45% probability that exactly 10 employees will be tested in order to find 3 positives

4 0

3 years ago

Which best describes the association between variables x and y?

erik [133]

Your answer is : B hope this helps

5 0

4 years ago

Read 2 more answers

Which expression is equivalent to 30 (1/2x - 2) +40 (3/4y-4)? (will add pic)

bixtya [17]

Answer:

C

Step-by-step explanation:

Given

30( $\frac{1}{2}$ x - 2) + 40( $\frac{3}{4}$ y - 4)

Multiply each of the terms in the first parenthesis by 30 and multiply each of the terms in the second parenthesis by 40.

= 15x - 60 + 30y - 160

= 15x + 30y - 220 → C

7 0

3 years ago