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Alex73 [517]
2 years ago
15

I need help solving this problem system of equations

Mathematics
1 answer:
Nezavi [6.7K]2 years ago
5 0

Answer:

y= -6

Step-by-step explanation:

-4x and 4x are canceled out. -2y+8y= 6y. -12-24=-36

You are left with 6y=-36 . Divide from both sides and -36/6 is -6. So, y=-6.

Hope this helped.

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Need help, what is the answer???
IRISSAK [1]

Answer:

9

Step-by-step explanation:

3 0
3 years ago
What is the slope for y=-5x-6
olga_2 [115]

Answer:

-5 is the slope and -6 is the y intercept

Step-by-step explanation:

This is in the form

y =mx+b  where m is the slope and b is the y intercept

y = -5x -6

-5 is the slope and -6 is the y intercept

3 0
3 years ago
A university is applying classification methods in order to identify alumni who may be interested in donating money. The univers
HACTEHA [7]

The accuracy in the research done by university is 0.81, sensitivity is 0.93, specificity is 0.81 and precision is 0.047.

Given sample size of 58205 and proportion of people donated 576. Cutoff is 0.5.

Probability is the chance of happening an event among all the events possible. It lies between 0 and 1.

TP=total people donated in sample, TN=total number of people,FP=donation,FN=No donation

Accuracy is calculated as under:

=(TP+TN)/(TP+TN+FP+FN)

=(268+23439)/(238+23439+5375+20)

=23707/29102

=0.81

Accuracy=0.81

Sensitivity is calculated as under:

=TP/(TP+FN)

=268/(268+20)

=268/288

=0.93

Precision is calculated as under:

=TP/(TP+FP)

=268/(268+5375)

=268/5643

=0.047

Their values are the probabilities in itself.

Hence accuracy is 0.81, sensitivity is 0.93, specificity is 0.81 and precision is 0.047.

Learn more about probability at brainly.com/question/24756209

#SPJ4

7 0
2 years ago
During a 10-year period, 6 out of 30 Major League Baseball teams won the World Series. What percent of Major League Baseball tea
zepelin [54]

Answer: 20% of Major League Baseball teams won the World Series during the 10-year period

Step-by-step explanation:

The total number of Major League Baseball teams is 30.

During a 10-year period, 6 out of 30 Major League Baseball teams won the World Series.

Therefore, the percentage of Major League Baseball teams won the World Series during the 10-year period would be

6/30 × 100 = 0.2 × 100 = 20%

6 0
3 years ago
Someone help plsss i don’t understand these are my last points no one doesn’t answer my question
UkoKoshka [18]

Answer:

for 1 it is the 3rd graph

Step-by-step explanation:

3 0
3 years ago
Read 2 more answers
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