Answer:
the scale factor is 3/4
Step-by-step explanation:
15/20= 3/4
6/8= 3/4
X*2 = 2x
Coefficient is 2.
To solve for the surface area of a sphere, the formula is 4*pi*r^2. Since we are using 3.14 instead of pi, the formula becomes 4*3.14*r^2. To solve, all we have to do is substitute in the radius for r and solve it like a normal question.
SA=4*3.14*r^2
SA=4*3.14*6^2
SA=452.16
Since we used 3.14 instead of pi, we have to say this is an approximate answer. This means the surface area of this sphere is 452.16 square inches.
Si. es linea .U na ecuación lineal es una igualdad matemática entre dos expresiones algebraicas, denominadas miembros, en las que aparecen elementos conocidos y desconocidos (denominados variables), y que involucra solamente sumas y restas de una variable a la primera potencia.l
Answer:
Matthew drank 4 more glasses of water than Nicole: equation
Four more glasses of water than Nicole: expression
Step-by-step explanation:
We can model "Matthew drank 4 more glasses of water than Nicole" as an equation as follows:
However, "Four more glasses of water than Nicole" is only an expression. It doesn't include an equality.
