Step-by-step explanation:
1: change 'sin²A' and 'cos²B' into (1-cos²A)and (1-sin²A) respectively.
2:open the brackets and put signs accordingly.
3: cancel (-1) and (+1).
4: remaining is your answer.
1049841
1053000x.003=3159
1053000-3159=1049841
Answer:
c
Step-by-step explanation:
a and b start with negative numbers meaning it couldnt be the greatest, then d shoes a negative number second so that cant be it
Answer:
x=3,y=-10
Step-by-step explanation:
First, we add 21 to both sides of the first equation
13x=-21-6y
+21 +21
13x+21=-6y Now divide by -1 to make it positive
/-1 /-1 /-1
-13x-21=6y
Now we have to subtract 36 on both sides of the second equation
-8x=36+6y
-36 -36
-8x-36=6y
Since both equations equal 6y we can solve the equation by making them "equal" each other
-13x-21=-8x-36 Add 36 to both sides
+36 +36
-13x+15=-8x Add 13x to both sides
+13x +13x
15=5x Divide by 5
/5 /5
x=3
Now use the x value to solve
13(3)=-21-6y
39=-21-6y Add 21 to both sides
+21 +21
60=-6y
/-6 /-6
y=-10
Hope this helped!
