Step-by-step explanation:
A
The step is necessary because it measures the radius of the inscribed circle
Step-by-step explanation:
In construction of an incenter, you first draw the angle bisector of at least two angles of the triangle, followed by constructing a perpendicular from the incenter to one side of the triangle to locate the exact radius then adjusting the compass point from the incenter and measure from the center to where the perpendicular crosses the side of the triangle.This last step measures the radius which will guide you in drawing the inscribed circle with correct measurements.
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Incenter :brainly.com/question/2144497
Keyword :Construction, incenter
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Answer: with 11 miles, it can travel 220 miles
Answer:
1) (x + 4)(x - ½) = 0
4x² + 16x = 0
2) 0.25x² + 0.8x - 8 = 0
3x² - 4x = 15
Step-by-step explanation:
1) (x + 4)(x - ½) = 0
x = -4, ½
4x² + 16x = 0
4x(x + 4) = 0
x = 0, -4
2) (x - 6)(x + 9) = 0
x = 6, -9
(x - 1)² = 4
(x - 1)² - (2)² = 0
(x - 1 - 2)(x - 1 + 2) = 0
(x - 3)(x + 1) = 0
x = 3, -1
These two are easier to solve using product = 0 property, while the other two would be easier using the quadratic formula
Answer: 2n-8
Explanation: 2(n-6)+4 you bring 2 into the parentheses so 2 x n is just 2n
then 2 x -6 = -12
New equation 2n-12 +4
Now you combine-12 and 4 which is -8
Finale equation: 2n-8
