Divide the number of events by the number of possible outcomes
Two negatives is a positive so the equation is Z+3/4=13/2
-3/4
Z=26/4-3/4
Z=23/4
When a straight line is given the form:

m is the gradient. It shows how the value of y changes for an increase of x by 1.
So, in this case, the gradient is
4
Answer:

Step-by-step explanation:

Move 2x to left hand side and change it's sign
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Collect like terms
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Divide both sides of the equation by 4
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Calculate
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Hope I helped!
Best regards!!