So: A + C = 180°
X + 20° + 110° = 180°
Then:
X = 50°
Answer:
The three given points are the vertices of a right triangle.
Step-by-step explanation:
To determine that the three points are the vertices of a right triangle let us find the distance between each two points
The formula of the distance is
∵ = 6 and = -6
∵ = 9 and = -6
∴ =
∴ = 3
∵ = 6 and = -6
∵ = 9 and = 1
∴ =
∴ =
∵ = 9 and = 1
∵ = 9 and = -6
∴ =
∴ = 7
<em>Let us use the fact that if the square of the longest side of a triangle is equal to the sum of the squares of the other two sides, then the triangle is a right triangle at the vertex which opposite to the longest side</em>
∵ The longest side is
∵ The other two sides are 3 and 7
∵ ( )² = 58
∵ (3)² + (7)² = 9 + 49 = 58
∴ ( )² = (3)² + (7)²
- By using the fact above
∴ The triangle is a right triangle
The three given points are the vertices of a right triangle.
Answer:
- 26
Step-by-step explanation:
g(-4)=-2*(-4)^2+6
g(-4)=-2*16+6
g(-4)=-32+6
g(-4)=-26
Answer:
Rodney's dog ate 21 pounds, because 25 minus the remaining 4 pounds is 21.
4 pounds was remaining.
Step-by-step explanation:
25 pounds minus 10.20 pounds is 14.80
14.80 pounds minus 10.80 is 4 pounds.
Rodney's dog ate 21 pounds, because 25 minus the remaining 4 pounds is 21.
4 pounds was remaining.