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larisa [96]
2 years ago
14

Expand and simplify (2x−12)^2. Is this a special product?

Mathematics
1 answer:
Rom4ik [11]2 years ago
8 0

Answer:

Step-by-step explanation:

(2x−12)^2 can be factored into 2^2*(x - 6)^2, which in turn becomes

4(x^2 - 12x + 36).  Yes, this is a special product of the form

(a - b)^2 = a^2 - 2ab + b^2.

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A shipment of beach balls with a mean diameter of 28 cm and a standard deviation of 1.3 cm is normally distributed. By how many
dlinn [17]

Answer:  D.) 3

Step-by-step explanation:

Given: Mean diameter: \mu=28\ cm

Standard deviation: \sigma=1.3\ cm

The required number of standard deviations is given by  :-

z=\frac{X-\mu}{\sigma}\\\\\Rightarrow\ z=\frac{31.9-28}{1.3}\\\\\Rightarrow\ z==3

Hence, a beach ball with a diameter of 31.9 cm is 3 standard deviations differ from the mean.

5 0
3 years ago
Read 2 more answers
Please help my head hurts
yawa3891 [41]

Answer:

jhtr638

Step-by-step explanation:

jhtr638

chose 4 random letters

then chose 3 random numbers

made sure no vowels or 9 and 1

5 0
3 years ago
Graph the equation<br>y=x^2 -<br><img src="https://tex.z-dn.net/?f=y%20%3D%20x%5E%7B2%7D%20%20-%202" id="TexFormula1" title="y =
rusak2 [61]

Answer:

the graph is attached below

Step-by-step explanation:

y=x^2 - 2

LEts make a table to get the coordinates

we need to select integers between -3 and 3

x                  y=x^2 - 2

-2                y=(-2)^2-2=2               (-2,2)

0                 y= (0)^2 - 2= -2          (0,-2)

2                 y=(2)^2-2 = 2              (2,2)

Now we use the table for graphing the given equation

The graph is attached below



6 0
4 years ago
Which graph represents the piecewise function?
zepelin [54]

Answer:

C bottom left is ur answer

Step-by-step explanation:

heres a screenshot

Step-by-step explanation:

8 0
3 years ago
Find the midpoint M of the line segment joining the points S = (-3, -6) and T = (5, 4).<br> M =
grandymaker [24]

Midpoint is simply the half of the distance between two points. In order to find this we will need to find the distance first and then find the midpoint... Let's start solving!~

\red{ \rule{35pt}{2pt}} \orange{ \rule{35pt}{2pt}} \color{yellow}{ \rule{35pt} {2pt}} \green{ \rule{35pt} {2pt}} \blue{ \rule{35pt} {2pt}} \purple{ \rule{35pt} {2pt}}

<h3>Distance⤵️</h3>

\boxed{ \sf \: formula :distance =  \sqrt{( x_{2}-x_{1})^{2}  + ( y_{2} - y_{1} ) ^{2}  }  }

  • x1= -3
  • y1= -6
  • x2= 5
  • y2= 4

<em>According to the solution, Their midpoint is at (6.4,0)</em><em>.</em><em>.</em><em>.</em>

5 0
3 years ago
Read 2 more answers
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