4c tom has three coins. two are fair and one is an unfair coin weighted so that heads is seven times as likely as tails. he selects one of the coins at random and flips it.
what is the probability it comes up heads?
if it does come up heads, what is the probability it was the unfair coin?
enter your answers as whole numbers or fractions in lowest terms.

find the magnitude of the trig term  

csc

(

x

)

−

1

by taking the absolute value of the coefficient.

1

find the lower bound of the range.

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y

=

−

2

find the upper bound of the range.

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y

=

0

the range is  

y

≤

−

2

or  

y

≥

0

.

(

−

∞

,

−

2

]

∪

[

0

,

∞

)

{

y

|

y

≤

−

2

,

y

≥

0

}

step-by-step explanation:

answer: you need to organize this better it does not make sense.

step-by-step explanation: ?

he earned 78.75 in interest.

step-by-step explanation:

idk

step-by-step explanation:

payback