Ada writes 10+8=18 on the board.Maria wants to use the commutative Property of Addition to rewrite Ada's addition sentence. What number sentence should Maria write
Step-by-step explanation:
The Value of Y is three times than a multiple of x.
The point-slope form:
m - slope
(x₁, y₁) - point
The formula of a slope:
We have the points (-3, 7) and (9, -1). Substitute:
<em>point-slope form</em>
<em>slope-intercept form</em>
<em>standard form</em>
Answer:
see explanation
Step-by-step explanation:
(1)
CD = CE - DE = 8 - 2 = 6
CB = CD = 6 ( given as congruent ) , thus
AC = AB + CB = 4 + 6 = 10
(2)
∠ 2 + ∠ BCD + ∠ DCF = 180° ( sum of angles on a straight line )
∠ 2 + 60° + 70° = 180°
∠ 2 + 130° = 180° ( subtract 130° from both sides )
∠ 2 = 50°