Answer:
Step-by-step explanatioi think it will be 24
First the answer is 7 but how you get it is
refine 4x+1+5x: 9x+1 and that turns into 9x+1=64
then 9x+1-1=64-1
next you do 9x/63 and that gives you 7
It will be 1 because your multiplying it by 0
Answer:
Step-by-step explanation:
∠D = ∠B {opposite angles of parallelogram are equal}
∠D = 40°
In ΔDCA
∠DCA + ∠D + ∠CAD = 180 {Angle sum property of triangle}
57 + 40 + ∠CAD = 180
97 + ∠CAD = 180
∠CAD= 180 - 97
∠CAD = 83°