Resolviendo una resta, veremos que el número es igual a 12.
<h3>
¿Como encontrar el número?</h3>
Definamos X como nuestro número, sabemos que cuando este número es disminuido en cuatro (es decir, le restamos 4 a nuestro número X) el resultado es 8.
Entonces, lo que tenemos que hacer es resolver la operación:
X - 4 = 8
Para resolver esto, lo que tenemos que hacer es sumar 4 en ambos lados de esta ecuación, asi obtenemos:
X - 4 + 4 = 8 + 4
X = 12
De esta forma, concluimos que nuestro número es igual a 12.
Sí quieres aprender más sobre restas:
brainly.com/question/25421984
#SPJ1
Answer:
SA = 4.91 in²
Step-by-step explanation:
A ball is a sphere, and the surface area of a sphere is

If our diameter is 1.25, the radius is half of that at r = .625
Filling in, we have
SA = 4(3.14)(.625)² and
SA = 4(3.14)(.390625) so
SA = 4.91 in²
Answer:
Absolute decrease = 33 million
Relative decrease = 22.45%
Step-by-step explanation:
The number of CD's sold the previous year (2009) was 147 million, and in 2010 it was 114 million. The absolute decrease is 147 million -114 million = 33 million.
The relative decrease is just the percent decrease and it is:
33 million/147 million =22.45% decrease.
Answer:

Step-by-step explanation:

![\sqrt[4]{x} = x^{\frac{1}{4}}](https://tex.z-dn.net/?f=%5Csqrt%5B4%5D%7Bx%7D%20%3D%20x%5E%7B%5Cfrac%7B1%7D%7B4%7D%7D)
we have:
=
the terms have the same base (x), then we write the same base and sum the exponents:

The correct answer for the question that is being presented above is this one: "b.70." A company manufactures 2,000 units of its flagship product in a day. The quality control department takes a random sample of 40 units to test for quality. The sample size would you use to get the best point estimate is <span>b.70</span>