Answer: y= x/5 -6
Step-by-step explanation: gradient= 1/5...(m1m2=-1)
y-y1=M(x-x1)
y-8=1/5(x-10)
5y-40=x-10
y=x/5-6
X = y
y = 4
By the substitution property, we can replace y with 4 in that first equation.
x = 4
I do believe you are right
I'll solve 21, and you then should be able to solve the rest on your own!
Since ADC is 135, that means that that whole angle is 135 degrees. In addition, since angles ADB and BDC add up to ADC, we get ADB+BDC=ADC=135=11x+9+7x=18x+9. Subtracting 9 from both sides, we get 126=18x. Dividing both sides by 18, we get x=7. Plugging that into 11x+9=BDC, we get 11*7+9=77+9=86
Answer:
hope it helps you......................
