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3 years ago

What is the value of x? 6 (-3 -x) - 2x = 14

Mathematics

2 answers:

Marat540 [252]3 years ago

8 0

The value would be x=-4

Anon25 [30]3 years ago

3 0

Answer:

x= -5 hope this helps

Step-by-step explanation:

did the math

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4log x-1/2log y+3log z

babymother [125]

Following rules of logs, we can do the following:

log x^4 - log y^(1/2) + log z^3

Combine the first and 3rd factors to get log [x^4*z^3]

Seeing that the neg. sign signifies division, write this new term - log y^(1/2) as a quotient:

[x^4*z^3]
log ----------------
y^(1/2)

Next time, please include the instructions when you present your problem.
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3 years ago

Look at the figure. Which pair of points is coplanar with points V and W?

aleksley [76]

The answer is r and s because it’s in the same plane.

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3 years ago

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Approximately 5% of calculators coming out of the production lines have a defect. Fifty calculators are randomly selected from t

baherus [9]

Answer:

0.2611 = 26.11% probability that exactly 2 calculators are defective.

Step-by-step explanation:

For each calculator, there are only two possible outcomes. Either it is defective, or it is not. The probability of a calculator being defective is independent of any other calculator, which means that the binomial probability distribution is used to solve this question.

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.

5% of calculators coming out of the production lines have a defect.

This means that $p = 0.05$

Fifty calculators are randomly selected from the production line and tested for defects.

This means that $n = 50$

What is the probability that exactly 2 calculators are defective?

This is P(X = 2). So

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

$P(X = 2) = C_{50,2}.(0.05)^{2}.(0.95)^{48} = 0.2611$

0.2611 = 26.11% probability that exactly 2 calculators are defective.

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3 years ago

A book has 600 pages which are numbered 1,2,3 and so on. How many times does the digit 5 appear in the page numbers?

lesya692 [45]

200 times. Hope you get it!!!!!!!!!!!!

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3 years ago

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After the booster club sold 40 hotdogs at a football game, it had $90 in profit. After the next game, it had sold a total of 80

Ainat [17]

We can model the equation:y = m x + b, where y is the total profit and x is the number of hotdogs sold.The system of equations is:
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3 years ago

What is the value of x? 6 (-3 -x) - 2x = 14​

What is the value of x? 6 (-3 -x) - 2x = 14