Answer:
I think it is non proportional
Answer:
-15
Step-by-step explanation:
x2 – 2(x - y) – 23
if x = -3, y = 4 and z = -1
-----------------------------------------------
-3 x 2- (-3 - 4) - 23
-15
Answer:
W = 7.7
Step-by-step explanation:
31.8 + 6.7 = 38.5
38.5 = 5W
38.5 / 5 = 7.7
W = 7.7
Answer:
cot(-270) = 0
Step-by-step explanation:
given cot ( -270)
In trigonometry function we will use cot ( -x) = -cotx
so cot (-270) = - cot270
<u>trigonometry table</u>
II quadrant I quadrant ( All positive)
sin θ 90+θ 90 -θ
<u> cosec</u> θ <u> 180-θ 360+θ</u>
third quadrant fourth quadrant
tan θ 180+θ cos θ 270+θ
cot θ 270 - θ sec θ 360-θ
Given
cot (-270) = -cot ( 270)
= - cot ( 180 + 90) (third quadrant above table)
= -cot 90 =0 ( cot θ positive in third quadrant
<u>Final answer</u>:-
cot(-270) =0
