Answer:0.9966
Step-by-step explanation:
Given
Probability that flash light does not work is 
If owner has 3 three flashlights then
Probability that atleast one of them works 
Probability that flashlight will work 
Required Probability
Now, Probability that second works given that first works is given by
Answer:
Thus, 56/81 is equivalent fraction for 8/9 times of 7/9.
Step-by-step explanation:
Answer:
A line that is perpendicular to y=2/5x-5 must have a slope of -5/2, but a line parallel to line y=5/2x+6 must have a slope of 5/2, and these slopes do not match up.
Explanation:
In order for a line to be parallel to another line, they must have the same slope. In order for a line to be perpendicular to another line, their slopes must be opposite reciprocals (meaning that when they are multiplied, the product is -1). From here you can find what slope the line must have to perpendicular or parallel to another line, and then you can see that the answers to not match up to be the same line!
Hope this helped :)
y=mx+b is the equation of a line;
m=slope , b= y-intercept
m=4 ; so we have : y=4x+b
We are give a set of points which it passes through, we can simply plug them in:
-2 = 4(3)+b (3 is the x and -2 is the y)
We get -2 = 12 +b .... -14=b
our final equation is : y=4x-14
