Which expression is equivalent to 30(1/2 x -2) + 40(3/4y -4)? 45xy - 220
15x - 30y - 220
15x + 30y - 220
15x + 30y - 64

15x +30y-64

Step-by-step explanation:

I know I'm dum sometimes

45xy-220. Hope you get this. Mark brainliest if helped you.

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:

its the second choice.

step-by-step explanation:

the elements in the range will be 7 less than the elements in the domain.