Answer:
see explanation
Step-by-step explanation:
Using the cofunction identity
sec(90 - x)° = cscx° , then
7A = 90 - 5A ( add 5A to both sides )
12A = 90° ( divide both sides by 12 )
A = 7.5°
Answer:
x= -2, x= +11
Step-by-step explanation:
I hope this is right!
To factorise, we need two numbers that add to make -9 and multiply together to make -22.
2 - 11 works, so we put it in the brackets in this order.
(x + 2) (x - 11)
so x + 2 = 0 and x - 11 =0
but we could also simplify this to say that x could be either -2 or + 11.
I hope this helps.
Have a lovely day.
Answer:
angle 3 + angle 5 = 180°( co-interior angles)
120°+6x=180°
6x=60°
x=10°
therefore, angle 5= 6x=6×10°=60°
Answer:
x= -5
Step-by-step explanation:
3x+3=2x-2
3x-2x=-3-2
x=-5
