(9÷ – 9)2+ – 6× – 7 pls help

answer is 1!!

Step-by-step explanation:

7+7=2 as the first equation. Based on the first equation we can find the common method which gives all the other equations.

7+7=2 adding 2 on LHS and RHS we get

7+7+1+1=2+2 implies 8+8=4 which is our second equation

Adding 1 and subtracting 2 from LHS and RHS of first equation

7+7+1–2= 2+1–2 implies 8+5=1 which is our third equation

Subtracting 1 and adding 2 on both sides of equation one

7+7–1+2= 2–1+2 implies 6+9= 3 which is our fourth equation

Adding 3 and 4 on both sides of equation one

7+7+3+4= 2+3+4 implies 10+11= 9 which is our fifth equation

Subtracting 3 and adding 2 on both sides of equation one

7+7–3+2= 2–3+2 implies 4+9=1

Therefore the answer is 1

the equation cos(35) =a/25 can be used to find the length of bc what is the length of bc? round to the nearest tenth

step-by-step explanation: