Answer:
sin(α) -cos(α)
Step-by-step explanation:

I'll help you out with 3 questions.
For #1, you kind of figured it out yourself
That 90 degree angle on paper means that m/1 and m/2 make up 90
If m1 is 50, then just subtract m1 (50) from 90, making it 40. m/2 is 40
If Angle M4 is 45 degrees then angle M3 is 180-45 since they both make up a 180 degree angle.
There are 180 degrees in a triangle
If m 8 = 78
and m 9 = 60
m 10 is 180 - 78 - 60
To estimate this, round 53 to 50 and 12 to 10. 50 times 10 will be roughly what? 500. that is the estimated answer. the real answer is 636.
Answer:
Martha is 29
Step-by-step explanation:
48=AX+MX+10
-10=-10
38=AX+MX
÷2=÷2
19=X
M(19)+10=29
48=19+29
Answer:
9x-10y
Step-by-step explanation:
9x+y-2y-9y(Multiply by 1)
Combine like terms
9x-10y