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vodka [1.7K]
3 years ago
5

How do I do this equation?​

Mathematics
2 answers:
d1i1m1o1n [39]3 years ago
8 0

Answer:

x = -7 , -1

Step-by-step explanation:

[x² + 6x + 8]/4x - 1/4x = -1/2

[x² + 6x + 8 - 1]/4x = -1/2

[x² + 6x + 7] = -1/2 × 4x

x² + 6x + 7 = -2x

x² + 6x + 7 + 2x = 0

x² + 8x + 7 = 0

x² + x + 7x + 7 = 0

x(x + 1) + 7(x + 1) = 0

(x + 7)(x + 1) = 0

x + 7 = 0 x = -7

x + 1 = 0 x = -1

x = -7 , -1

Lemur [1.5K]3 years ago
4 0

Answer: x= -1, -7

Step-by-step explanation:

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Geometric sequence -1, -5, -25, -125 the 9th term
Anna [14]
A9th = -1* 5^(n-1)

a9th = -1*5^(9-1)
a9th = -1*5^(8)
a9th = -390625

Hope this helps!
4 0
3 years ago
In a research report, the researcher provides the following information: The seven men were ages 32 to 45 (M
rodikova [14]

The answer is Demographic data

The researcher includes the following material in a research report: The seven males varied in age from 32 to 45 (M = 38), had a high school education (two had high school diplomas, one had an associate degree, three had an undergraduate degree, and one had a master's degree), and had yearly incomes ranging from $20,000 to $100,000 (M = $52,000). Demographic data refers to information on the characteristics of the individuals being investigated.

What is Demographic data?

  • Demographic analysis is the examination of a population's characteristics such as age, ethnicity, and gender.
  • Demographic data is a statistical representation of socioeconomic information such as employment, education, income, marriage rates, birth and death rates, and so on.
  • Age, race, ethnicity, gender, marital status, income, education, and occupation are some examples of demographic information. With survey questions, you may quickly and efficiently collect this sort of information.

To learn more about Demographic data visit:

brainly.com/question/7212745?

#SPJ4

8 0
1 year ago
A manager randomly selected 25 large cash transactions at a bank that were made in January. The manager then carefully tracked d
Dmitriy789 [7]

Answer:

0.4629 = 46.29% probability that the manager finds more than two such transactions

Step-by-step explanation:

For each transaction, there are only two possible outcomes. Either there is a procedural error, or there is not. The probability of a procedural error on a transaction is independent of any other transaction. This means that we use the binomial probability distribution 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.

A manager randomly selected 25 large cash transactions at a bank that were made in January.

This means that n = 25

The chance for a procedural error is 10%

This means that p = 0.1

What is the probability that the manager finds more than two such transactions?

This is:

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

In which

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

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

P(X = 0) = C_{25,0}.(0.1)^{0}.(0.9)^{25} = 0.0718

P(X = 1) = C_{25,1}.(0.1)^{1}.(0.9)^{24} = 0.1994

P(X = 2) = C_{25,2}.(0.1)^{2}.(0.9)^{23} = 0.2659

P(X < 2) = P(X = 0) + P(X = 1) + P(X = 2) = 0.0718 + 0.1994 + 0.2659 = 0.5371

P(X \geq 2) = 1 - P(X < 2) = 1 - 0.5371 = 0.4629

0.4629 = 46.29% probability that the manager finds more than two such transactions

4 0
3 years ago
Plz help no guessing
ankoles [38]
Your answer would be C. 6.07 × 10^24.

This is because to add numbers in standard form, we need to get their (×10^x) to be the same, as in, we need to get 7 × 10^22 to be [value] × 10^24.

To convert ×10^22 to ×10^24, we need to divide 7 by 100, as 0.07 × 10^24 = 7 × 10^22.

Now that we have them both with the same power, we can add 6 to 0.7 to get 6.07 × 10^24.

I hope this helps! Let me know if you have any questions because my explanation was a bit strange :)
6 0
3 years ago
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3 years ago
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