A textbook store sold a combined total of 256 sociology and history textbooks in a week. The number of history textbooks sold was 76 less than the number of sociology textbooks sold. How many textbooks of each type were sold?

438

Step-by-step explanation:

subtract 76 from 256 you get 180 then add 180 to 256

Step-by-step explanation:

  Heres what i got if you subtracted 256 -76= 180 is the total of one of the books. and im guessing the other total is the other books.

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

≥

0

}

step-by-step explanation: