Answer:
x = 3
Step-by-step explanation:
The angle bisector divides the segments either side of it proportionally. So, you have ...
x/4 = 2.25/3
x = 4·2.25/3 . . . . multiply by 4
x = 3
_____
Since DB = 3 and DA = 2.25, point D is clearly <em>not the midpoint</em> of AB.
Answer:
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Step-by-step explanation:
Slope-intercept form:
y = mx + b
"m" is the slope, "b" is the y-intercept (the y value when x = 0, or (0,y))
For lines to be parallel, their slopes have to be the SAME.
The given line's slope is 4, so the parallel line's slope is also 4.
y = 4x + b
To find "b", plug in the point (-3,5) into the equation.
y = 4x + b
5 = 4(-3) + b
5 = -12 + b Add 12 on both sides
17 = b
y = 4x + 17
Answer : AB = 12
Explanation:
2x + 6 + 5x - 3 = 24
7x + 3 = 24
x = 3
AB = 2x + 6 = 2(3) + 6 = 12