He didn’t multiply the equation by 1/2 in the second part so it threw his whole answer off. Hope this helps
Answer:
when you subtract a negative number the two negative signs cancel out and it turns to a positive number
Step-by-step explanation:
in -6 - (-2)
the two - signs cancel out so it ends up being
-6+2 which is why it equals -4
Answer:
The value of x is 7
Step-by-step explanation:
Complementary angles have a sum of 90°, therefore the equation to solve for x is:
∠1+∠2=90°
60°+5(x-1)°=90°
5(x-1)=30°
x-1=6
x=7
So the value of x is 7
7 yes is a function
8 is not a function