There are enough information's already given in the question. Based on those information's that answer can be easily deduced.
Radius of the sphere = 8 units
Then
Surface area of the sphere = 4 *pi * r^2
= 4 * pi * (8)^2
= 4 * pi * 64
= 256pi
I hope that this answer has come to your help.
Answer:
<u>100 m</u>
Step-by-step explanation:
<u>Given</u> :
<u>#1) Finding the side length</u>
- Area = (side length)²
- ⇒ side length = √Area
- ⇒ side length = √625
- ⇒ side length = 25 m
<u>#2) Calculating perimeter</u>
- Perimeter = Total length of the sides of the shape
- Perimeter = 4 x side length [a square has 4 equal sides]
- ⇒ Perimeter = 4 x 25
- ⇒ Perimeter = <u>100 m</u>
Answer:
I think its b plz don't get mad I am not so sure
Respuesta:
(2945.411; 3054.589)
Explicación paso a paso:
Dado ;
Tamaño de la muestra, n = 50
Media, xbar = 3000
Desviación estándar, s = 200
Nivel de confianza, Zcrítico al 95% = 1,96
El intervalo de confianza se define como:
Xbar ± margen de error
Margen de error = Zcrítico * s / sqrt (n)
Margen de error = 1,96 * 200 / sqrt (50)
Margen de error = 54.589
Límite inferior = (3000 - 54.589) = 2945.411
Límite superior = (3000 + 54.589) = 3054.589
(2945.411; 3054.589)
Answer:
270 feet
Step-by-step explanation:
For clarity, the image below represents the problem. Let's call h the height of the tower. Notice that it forms 2 triangles that are similar to side-angle-side. So, we can calculate the higher of the tower by similar triangles:
higher1/base1 = higher2/base2
h/135 = 6/3
h/135 = 2
h = 270 ft
