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3 years ago

Solve the equation using any technique 6x^2-5x-1=0

Mathematics

2 answers:

liberstina [14]3 years ago

8 0

(6x+1)(x-1)
x= -1/6, 1
D

zheka24 [161]3 years ago

7 0

Answer:

D)x=-1/6;x=1

Step-by-step explanation:

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What is the slope of the line that is perpendicular to the line that goes through the two points (-8, 3) and (4, 27)?

Mademuasel [1]

Answer:

-1/2 or -0.5

negative half

Step-by-step explanation:

slope of regular line= (y1-y2) / (x1-x2)

(27-3) / (4 - -8)

24 / (4+8)

24 / 12 = 2

the slope of a perpendicular line is the negative reciprocal

the negative reciprocal of positive 2/1 (2 as a fraction) is:

negative half: -1/2 or -0.5

8 0

2 years ago

Critique each of the following proposed research plans. Your critique should explain any problems with the proposed research and

Korvikt [17]

Answer:

Explained

Step-by-step explanation:

Given that:

- A researcher is interested in determining whether a large aerospace firm is guilty of gender bias in setting wages.

According to the given info the difference in means test is too limited because it does not include the type of engineer, education level or experience. The gender with lower wages of might be reflected in the type of engineer or education level.

The research could be improved using additional data on the factors namely gender, education, education and the type of engineer.

Then, further it is recommended to construct a multiple regression where the dependent variable is a wage and the four factors are independent variables. The importance of the omited variable by the means of that the "difference in means" test in unsuitable for determining the gender bias in setting wages.

3 0

3 years ago

The solution to 5x - 7 = 21?

lapo4ka [179]

Answer:

x = 5.6

Step-by-step explanation:

5x - 7 = 21

5x = 28

x = 5.6

Can I geet brainliest

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3 years ago

Read 2 more answers

In 2006,the General Social Survey (which is conducted uses a method similar to simple random sampling) included a question that

mars1129 [50]

Answer:

Assumptions are not met. Can not make confidence interval.

Step-by-step explanation:

In the General Social Survey, sample size is 1514.

The proportion of those who see themselves social is $\frac{470}{1514}$ ≈ 0.31

To give an 95% confidence interval, we should be able to calculate margin of error of the sample mean, which is given by the formula

M± $z*\frac{s}{\sqrt{N} }$ where M is the mean of the sample (in the General Social Survey it is 0.31), z is z-score for the 95% confidence level(approx. 1.94), s is the standard deviation of the sample, N is the size of the sample(in this example it is 1514).