Answer:
x=3
Step-by-step explanation:
We have to use the fact that all angles of a triangle add up to 180 and two supplementary angles add up to 180.
First,QRS forms a line, so angle QRT and angle TRS add up to 180 or, if we call angle TRS y for the sake of having it as a variable, 45x+y=180 or y=180-45x
Now we have all three angles of the triangle, and we know all three add up to 180, so startign with our newly found angle, (180-45x)+(25x)+(57+x)=180
180-45x+25x+57+x=180
237 - 19x = 180
57 = 19x
x=3
Let me know if you need any further explanation.
Answer:
y= -2x - 1
Step-by-step explanation:
that is the answer sorry if wrong
Let us assume that even F represents fidelity and event S represents selectivity.
We have been given the probabilities:
P(S) = 0.72, P(F) = 0.59 and 
We need to find the conditional probability that a system with high fidelity will also have high selectivity. We know the conditional probability formula:
Upon substituting the given values, we get:
Answer:
25
Step-by-step explanation:
20, 30, 40, 10, 15, 25, 35
Put the data in order from smallest to largest
10,15,20, 25,30,35, 40
The median is the middle
There are 7 pieces of data so the 4th piece is in the middle
10,15,20, 25, 30,35, 40
25 is in the middle so it is the median
