The length of a median is equal to half the square root of the difference of twice the sum of the squares of the two sides of the triangle that include the vertex the mediam is drawn from and the square of the side of the triangle the median is drawn to.
triangle sides by a, b, c.
ma=122c2+2b2−a2
mb=122c2+2a2−b2
mc=122a2+2b2−c2
Answer:
-13.57
Step-by-step explanation:
21.3 + (-34.87) = -13.57
Mark me as brainliest if you want to.
x-y=21 ⇒ x=y+21
x+13=2y
Substitute y+21 for x into the equation x+13=2y
So y+21+13=2y
Simplify 34=y
So Danielle is 34 years old. Plug y back in to the original equation
x-34=21
x=55
Tony is 55 years old
Answer:
1/4
Step-by-step explanation:
The probability of getting a heads is 1/2
The probability of getting an odd number
1,3,5
----------- = 3/6 = 1/2
1,2,3,4,5,6
Since they are independent events, we multiply the probabilities
1/2 * 1/2 = 1/4
Answer:
B: I think
Step-by-step explanation:
correct me if im wrong
