Answer:
y = 7
Step-by-step explanation:
Given:
x1 = -2
y1 = 7
slope (m) = 0
y - y1 = m ( x - x1 )
y - 7 = 0 ( x - (-2) )
y - 7 = 0 ( x + 2 )
y - 7 = 0
y = 7
7.79cm It is an equilateral triangle so it has 3 equal sides. That means each side is 9cm. <span>
Now draw a line from the top of the equilateral triangle to the base, and dividing it into two. You will have made two smaller triangles, with sides 9, 4.5, and h (the one you want to find).
A line drawn from the apex of an equilateral triangle to the midpoint of the base is perpendicular to the base, so you can use Pythagoras' Theorem!
4.5^2 + h^2 = 9^2
h = sqrt(9^2 - 4.5^2)
Therefore, the height is 7.79cm (2 decimal places)</span><span>
</span>
The y intercept is where the graph crosses the y axis so it is (0,3)
The y intercept is the initial fee
Answer:
maybe its just me but I cant see it :( blurry
Step-by-step explanation:
Answer:
a) a +8a +3a = 180°
b) 15°, 45°, 120°
c) see attached
Step-by-step explanation:
<h3>a)</h3>
Let 'a' represent the measure of the smallest angle. The largest angle is 8a, and the middle angle is 3a. The sum of angles, as always, is 180°.
a +8a +3a = 180° . . . . . . equation modeling the relationship
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<h3>b)</h3>
12a = 180° . . . . . . collect terms
a = 15° . . . . . . . divide by 12
3a = 3×15° = 45°
8a = 8×15° = 120°
The angle measures are 15°, 45°, and 120°.
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<h3>c)</h3>
see attached. We have arbitrarily let the shortest side be 10 units.
