I DONT UNDERSTAND HOW TO DO THISSS PLEASE HELP
1 answer:
Answer:
inside
Step-by-step explanation:
All of the points on the circle are at distance 25 units from the center. If the questionable point is closer to the center than that, it is inside the circle.
The distance formula can be used.
d = √((x2 -x1)^2 +(y2 -y1)^2)
d = √((5 -(-5))^2 +(-24 -(-8))^2) = √(10^2 +(-16)^2) = √(100 +256) = √356
d ≈ 18.9
The point (5, -24) is inside the circle centered at (-5, -8) with radius 25.
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The equation of the circle is equivalent to d=25 using (x1, y1) as the center. It is usually written without the radical:
(x -(-5))^2 +(y -(-8))^2 = 25^2
(x +5)^2 +(y +8)^2 = 625
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Answer:
Given:
- area = 18 cm²
- base = 6 cm
- height = (h + 1) cm
Substitute the given values into the equation and solve for h:
expand using distributive property of addition :
subtract 3 from both sides:
divide both sides by 3:
<u>To verify</u>:
Half of the base is 3 cm.
If h=5, then the height of the triangle is 6 cm.
Multiplying 3 by 6 is 18.
This matches the given area, so we can verify that h = 5.