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damaskus [11]
3 years ago
12

What is the graph of the equation 9x^2 + 4y^2 - 18x + 8y - 23 = 0 ? Also, how did you get that?

Mathematics
1 answer:
Dmitriy789 [7]3 years ago
8 0
13xy^2-10xy-23=0

you first add the like terms and rewrite and thats how you get the answer
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I need this done asap im really stressed right now
sveticcg [70]

Answer:

y(y-2)(y+10)

Step-by-step explanation:

when factoring you work with similar concepts and get rid of what you can to make the equation simipler and get your answer like you take a y out of the equation to get y^2 and then reduce and then solve by grouping.

3 0
3 years ago
An animal gained 5 kilograms steadily over 25 years. What is the unit rate of kilograms per​ year?
zalisa [80]

Answer:

0.2kg

Step-by-step explanation:

5/25 = 0.2 which is the rate of kg per year

5 0
1 year ago
<img src="https://tex.z-dn.net/?f=%20%5Csqrt%7B32%7D%20" id="TexFormula1" title=" \sqrt{32} " alt=" \sqrt{32} " align="absmiddle
hammer [34]

The answer to sqrt 32, simplified is 4sqrt2.

4 0
3 years ago
A food distributor is being sued for racial discrimination because 12% of newly hired candidates are not white when 53% of all a
Musya8 [376]

Answer:

Check Explanation

Step-by-step explanation:

A) The null hypothesis would be that the proportion of newly hired candidates that are not white is not significantly different from the proportion of the applicants that are not white & there is no significant evidence that the company's hiring practices are discriminatory.

Mathematically,

H₀: μ₀ = 0.53

And the alternative hypothesis would be that there is a significant difference between the proportion of newly hired candidates that are not white is not significantly different from the proportion of the applicants that are not white. More specifically, that the proportion of newly hired candidates that are not white is significantly less than the proportion of applicants that are not white & there is significant evidence that the company's hiring practices are indeed discriminatory.

Mathematically,

Hₐ: μ₀ < 0.53

B) The two errors that can come up in this hypothesis testing include -

Type I error: We reject the null hypothesis because we obtain that the proportion of newly hired candidates that are not white is significantly less than the proportion of applicants that are not white and conclude that there is indeed significant evidence that the company's hiring practices are discriminatory when in reality, there is no significant difference and hence, no discrimination.

Type II error: We accept the null hypothesis (fail to reject the null hypothesis) because we obtained that there is no significant difference between the proportion of newly hired candidates that are not white & th proportion of applicants that are not white and conclude that there is no discrimination in the company's hiring practices when in reality, there is significant difference in the stated proportions above and significant evidence that there is indeed significant evidence that the company's hiring practices are discriminatory.

C) The power of the test increases as the significance level reduces. This is because t-statistic increases as significance level reduces.

D) The standard error of the mean used in computing the t-score is given as

σₓ = (σ/√n)

It is evident that as the value of n increases, the standard error reduces and this widens the effect of the test, hence, the power of the test increases.

Hope this Helps!!!

7 0
3 years ago
Lucy was running a 10 mile race and the graph represents her running pace for the race. If the x-axis represents miles ran and t
Ostrovityanka [42]

Answer:

C

Step-by-step explanation:

The function multiplies by 8 so 6 would be 48 and 10 would be 80.

Have a great day!

4 0
3 years ago
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