Eva spent $11.61 downloading songs, each song cost $1.29. four students wrote and solved equations to find s, the number of songs that she downloaded. which student wrote and solved the equation correctly?
a. seba’s work
b. ari’s work
c. erick’s work
d. daniel’s work
the formula to find the probability is p(a ∩ b)=p(b | a)p(a) and p(a ∩ b) = .
total numbers in the hat = 30
let a be the event of picking number 1 and b be the event of picking number 2 then without replacement.
clearly, the probability of the second event depends on the first event.
so, p(a ∩ b)=p(b | a)p(a)
p(b | a) means probability of event b with the condition that event a has happened.
so, the first number picked is 1.
therefore, p(b | a) =
p(a ∩ b)=
the standard form as
given: a function which is written in vertex form or intercept form.
we have to re-write it in standard form that in terms of
squaring using , we get,
multiply 5 inside , we get,
solving further , we get,
thus , we have obtained the standard form as
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