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Aleks04 [339]
3 years ago
15

What is the solution of the system use a graph.

Mathematics
1 answer:
Minchanka [31]3 years ago
6 0
As you can see, this is easily graphed on desmos.com. You can also graph it using your graphing calculator.

The solution is (x, y) = (-2/5, 1/5)

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Two cars start driving in the same direction from the same place. If one travels 5050 mph and the other 5959 ​mph, how long will
vlabodo [156]

There is a 909 mph gap between the two cars. So if we can divide 3636 by 909 we get 4.


Answer: 4 Hours

8 0
3 years ago
Find the value of 4^2 + 6 ÷ 2
lorasvet [3.4K]

Answer:

19

Step-by-step explanation:

Follow PEMDAS

4^2 + 6 ÷ 2

16 + 6 ÷ 2

16 + 3

19

4 0
3 years ago
Read 2 more answers
A certain disease has an incidence rate of 0.1%. If the false negative rate is 8%
defon

Answer: 0.31 or 31%

Let A be the event that the disease is present in a particular person

Let B be the event that a person tests positive for the disease

The problem asks to find P(A|B), where

P(A|B) = P(B|A)*P(A) / P(B) = (P(B|A)*P(A)) / (P(B|A)*P(A) + P(B|~A)*P(~A))

In other words, the problem asks for the probability that a positive test result will be a true positive.  

P(B|A) = 1-0.02 = 0.98 (person tests positive given that they have the disease)

P(A) = 0.009 (probability the disease is present in any particular person)

P(B|~A) = 0.02 (probability a person tests positive given they do not have the disease)

P(~A) = 1-0.009 = 0.991 (probability a particular person does not have the disease)

P(A|B) = (0.98*0.009) / (0.98*0.009 + 0.02*0.991)

= 0.00882 / 0.02864 = 0.30796

*round however you need to but i am leaving it at 0.31 or 31%*

If you found this helpful please mark brainliest

3 0
2 years ago
I need help: number 19
Gwar [14]

Answer:

y=x+2

Step-by-step explanation:

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

TO FIND THE SLOPE: we take the x and y intercepts as a fraction. in this case the line touches the y axis (vertical) at point/value 2 and the x axis at point 2 as well. This means the slope is 2/2x which can be simplified to 1x or just x.

TO FIND THE Y INTERCEPT: we find where the line touches the y axis at point 2.

the slope is plugged into the m of the equation and the y intercept is plugged into the b of the equation.

4 0
2 years ago
I need help please i need step by step help
melomori [17]
Mmmmbrntnrjneuneunre unenriched
3 0
2 years ago
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