Answer:
c Aerobics and jumping rope
Thank you and please rate me as brainliest as it will help me to level up
1. The first question is the equation of the line from point R as a median. It is a median if it intersects at the midpoint of the opposite length. This is represented as the red line. The midpoint is:
x,m = (4+-2)/2 = 1
y,m = (-1+7)/2 = 3
The midpoint is at (1,3). With this point and point R(9,9), the equation would be:
y = mx + b, where
m = (9 - 3)/(9 - 1) = 0.75
b is the y-intercept
Substituting any point,
3 = 0.75(1)+b
b = 2.25
Thus, the equation for the median is:
y = 0.75x + 2.25
2.) The altitude of the triangle from point r is a straight line from vertex R down to the opposite side which creates a right angle. As you can see in the picture, this is also the median. So, the equation is also y = 0.75x + 2.25.
3.) Yes, the answers for the median and altitude are the same, because the median also makes a perpendicular angle to the opposite length, which makes it the altitude.
4.) If the triangle is isosceles, then the length of sides QR and PR should be equal. Let's use the distance formula:
Between Q(-2,7) and R(9,9)
d = √(9 - ⁻2)² + (9 - 7)² = 5√5
Between P(4,-1) and R(9,9)
d = √(9 - 4)² + (9 - ⁻1)² = 5√5
Since the distances are equal, then the triangle is an isosceles.
Answer:
1/48 square miles.
Step-by-step explanation:
(1/12)*(3/12) = 3/144
simplify into 1/48
Answer:
16.5
Step-by-step explanation:
Answer:
3,5
Step-by-step explanation:
I don't really know about hope this help