Atriangle has sides of lengths 8, 15, and 17. is it a right triangle?
yes; 82 +152 +172
no; 82 +152 = 172
no; 82 +152 +172
yes; 82 +152 = 172

the last choice:   yes as   8^2 + 15^2 = 17^2.

step-by-step explanation:

17^2 = 289

8^2 + 15^2 = 64 + 225 = 289.

it satisfies the inverse of the pythagoras theorem so it is right-angled.

add 5 subtract 1

step-by-step explanation:

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: