~will mark brainiest~ last one of these i have a question on, if someone could explain it that would be lovely : )

5x+7x+24=180      5x = angle below (7x+24)  so that makes them = 180

subtract 24 from each side

12x = 156

x=13

7x+24 = 6y+7

7(13)+24 = 6y+7

115 = 6y+7  corresponding angles

subtact 7

108=6y

y=8

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:

2x^2+5x+17

your welcome. : )