3 years ago

What is an example of a quadratic pattern ?

1 answer:

6 0

<h3>Answer</h3>

A sequence of numbers has a quadratic pattern when its sequence of second differences is constant. Here is an example. Terms: 12. 22. 32. 42. 52. 62. 72 .

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Please answer this question. Your explanation does not need to have that much effort put into it. This is a 10 point question.

Elis [28]

Answer:

B and C

Step-by-step explanation:

3 2/5 times 7 = 23 4/5

3 2/5 times 10 = 34

The rest of the answers are incorrect

7 0

3 years ago

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Determine the mass of a solid steel ball that has a diameter of 10 cm. The density of pure steel is 8.09 g/cm3

Basile [38]

Answer:

<em>The mass of the steel ball is 4,235.9 gr</em>

Step-by-step explanation:

<u>Density</u>

The density ρ of a substance is a measure of its mass per unit volume:

$\displaystyle \rho=\frac{m}{V}$

If the density and the volume are given, the mass can be calculated by solving the above formula for m:

$m=\rho.V$

We know the density of pure steel ρ=8.09 gr/cm3 and the diameter of a solid steel ball d=10 cm.

We need to calculate the volume of the sphere:

The volume of a sphere of radius r is given by:

$\displaystyle V=\frac{4}{3}\cdot \pi\cdot r^3$

The radius is half the diameter: r= 10/2 = 5 cm. Thus:

$\displaystyle V=\frac{4}{3}\cdot \pi\cdot 5^3$

Calculating:

$V=523.6\ cm^3$

The mass is:

$m=8.09 gr/cm^3 \cdot 523.6\ cm^3$

m=4,235.9 gr

The mass of the steel ball is 4,235.9 gr

4 0

3 years ago

A father is four times as old as his son. In 3 years, the father will be three times as old as his son. How old is each now?

matrenka [14]

4x+3=3(x+3)

4x+3=3x+9

4x-3x=9-3

x=6

So The Father is 24 and the Son is 6

8 0

3 years ago

SOMEONE PLEASE HELP ME i really need this one

jek_recluse [69]

Answer:

Wait are u trying to find the area of a shape???

Step-by-step explanation:

8 0

3 years ago

Graph of a cubic polynomial that falls to the left and rises to the right with x intercepts negative 2, negative 1, and 2

xz_007 [3.2K]

Hello,

A cubic polynomial with -2,1,2 as roots is
f(x)=k*(x+2)(x+1)*(x-2)=k(x²-4)(x+1)=k(x^3+x²-4x-4)

Looking the answers ==>k=1

==>Answer A

6 0

3 years ago

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