In patrulaterul convex abcd, măsura unghiului b este de 70 grade iar diagonala ac face cu latura [ab] un unghi de 30 grade, iar cu latura [ad] un unghi de 40 grade. masura unghiului acd este 50 grade, iar drepturile ad și bc se intersectează in e. aratati ca ac congruent ce. urgnt

first one is a: renaming a fraction. second one is c: de-c

step-by-step explanation:

my explanation is that these were the answers on edg : )

step-by-step explanation:

we are given

since, we have to isolate x on anyone side

so, we can move all x terms on one side

subtract both sides by 2x

add both sides by 9

divide both sides by 4

we get

the answer is 13

step-by-step explanation:

5*5=25

12*12=144

25+144=169

169^2=13

step-by-step explanation:

its 512 because parenthesis and to the 2nd power is 512 so it will be 512