8. Where is the first mistake? 5(2x + 4) = 10(6x – 8)
10x + 20 = 60x – 80
10x = 60x – 100
-50x = -100
x = -2
A. Distributing the 5
B. Distributing the 10
C. Subtracting 60x from both sides
D. Dividing by -5°

answer

a,b, and d

explanation

a reflection angle is more than

but less than;

an angle that measures

is a reflex angle.(true)

an angle that measures less than

is acute.(true)

provided we are considering angles greater or equal to zero.

an acute angle lies in the range.

an obtuse angle is less than 180° but more than 90°

an angle that measures 300° is obtuse (false)

an angle that measures 65° is an acute angle.(true)

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

17 1/3

step-by-step explanation:

answer: i literally just answered this question but they want me to do it again

step-by-step explanation: