What is the mean of -3, 4, 8, -1, -4, -2, 0, 2, 5, 2, -3, 1
Rom4ik [11]
Answer:
3/4 or .75
Step-by-step explanation:
The mean means the average so you would add up all the numbers then divide by how many numbers there are
-3+4+8+-1+-4+-2+0+2+5+2+-3+1= 9
9/12= 3/4 or .75
depends whether or not you want it in fraction or decimal form
I don't know if my answer is completely correct, but I think it's 100. All triangles add up to 180, and an isosceles triangle has 2 equal sides. 40 would be the 2 sides, and 180 subtracted from 80 equals 100.
Answer:
x= 20
Step-by-step explanation:
1. multiply both sides by 20: 16x-5x= 220
2. Combine like terms: 11x=220
3. Divide: x=20
Answer:
option D
Step-by-step explanation:
we have a right triangle
we know
c^2=a^2+b^2
c=hypotenuse
c=52 cm
a=48 cm
b= 20 cm
we substitute in the equation c^2=a^a+b^2
so we have
52^2=48^2+20^2
52= sqrt(48^2+20^2)
52= sqrt(2304+400)
52= sqrt(2704)
52cm=52cm
so c=52 cm
so the option D is the correct answer
