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Dvinal [7]
3 years ago
6

Larry used a pattern of colors to make a cube train.he used a red cube ,blue cube a red cube and another red cube. before he sta

rted the pattern again how many red cubes did Larry use?
Mathematics
2 answers:
Dmitriy789 [7]3 years ago
8 0
Isnt it 3... or am i totally misunderstanding this question?
Gelneren [198K]3 years ago
3 0
He used 3  red cubes.....
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The following steps are used to rewrite the polynomial expression (x+2y)(x-5y)
neonofarm [45]
(x+2y)(x-5y)
do foil method:
x^2-5xy+2xy-10y^2
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so d is correct.
7 0
3 years ago
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Students pass a test it they score 50% or more. the marks of a large number of students were sampled and the mean and standard d
Schach [20]
So we are given that the mean is 42% and the sd (standard deviation) is 8%
Assuming our data is normal we can use the 68-95-99 rule

So one thing you should realize is that 42% + 8% is 50% which is passing. That is one standard deviation higher. So we use:
 
100 - 68 - 13.5 - 2.35 - 0.15  = 16. That means 16% of students passed the test. Which is terrible. They probably need to hit the books more.

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3 0
3 years ago
Can you please help me
klemol [59]

Answer:

D

Step-by-step explanation:

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MissTica
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7 0
3 years ago
Given the linear system:
azamat

Answer:

y=x+1/2z+-1/2

Step-by-step explanation:

Let's solve for y.

2x−2y+z=1

Step 1: Add -2x to both sides.

2x−2y+z+−2x=1+−2x

−2y+z=−2x+1

Step 2: Add -z to both sides.

−2y+z+−z=−2x+1+−z

−2y=−2x−z+1

Step 3: Divide both sides by -2.

-2y/-2 = -2-z+1/-2

y=x +1/2z+-1/2

3 0
3 years ago
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