Answer:
Angle A = 180
Step-by-step explanation:
180=7x+40
Subtract 40 from both sides
140 = 7x
Divide 7 from both sides
20=x
Substitue 20 in for x
7(20)+40
140+40 = 180
52? sjnwjejdjdjxjdjjxcn i ahd to do that to be 20 letters
Answer:
1.36+3+(32)(2)
=57
error is that 6 is the wrong answer
35. an open circle means there is no equal sign, and shading to the left means less then...so inequality is : x < 6
36. a closed circle means there is an equal sign, and shading to the left means less then.... x < = 9
in short...a closed circle means there is an equal sign, an open circle means there is not. if it is shaded to the left, it is less then...if it is shaded to the right, it means it is greater then.
37. x > 4
38. x > = 4
39. x < 1
40. x < = 5
41. x > = 5
42. x < 0
Answer:
3 ; 5/2
Step-by-step explanation:
Δ= 121 - 120 = 1
x1 = (11 + 1)/4 = 3
x2 = (11-1)/4 =5/2
