In a class 19 of students, 10 are female and 7 have an A in the class. There are 3 students who are male and have an A in the class. What is the probability that a student who has an A is a female?

21%

Step-by-step explanation:

the total number of students is 19.

the number of students that have an A is 7.

the number of students that have an A and are a boy is 3, which leaves 4 others in the category of getting an A.

4 out of the 19 total students could be female with an A.

4/19 = 0.21 = 21%

7

Step-by-step explanation:

7 females have an a

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.

tap for more

y

=

−

2

find the upper bound of the range.

tap for more

y

=

0

the range is  

y

≤

−

2

or  

y

≥

0

.

(

−

∞

,

−

2

]

∪

[

0

,

∞

)

{

y

|

y

≤

−

2

,

y

≥

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}

step-by-step explanation: