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Tasya [4]
3 years ago
15

Thea used 1/2 of 10 blocks to build a house. Find 1/2 of 10 blocks

Mathematics
2 answers:
Lunna [17]3 years ago
8 0

1/2 is basically the same thing as dividing by 2.

Therefore, 1/2 of 10 is the same thing as 10/2, which is 5.

1/2 of 10 blocks is 5.

tatuchka [14]3 years ago
5 0

Answer:

The half of 10 blocks is 5 so the answer is 5. Hope the answer was useful

Step-by-step explanation:

10 divided by 2 equals 5.

2 x 5 =10

1/2= .5 or .50 ,and also means half

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Allied Corporation is trying to sell its new machines to Ajax. Allied claims that the machine will pay for itself since the time
kvasek [131]

Answer:

z(s) is in the acceptance region. We accept H₀  we did not find a significantly difference in the performance of the two machines therefore we suggest not to buy a new machine

Step-by-step explanation:

We must evaluate the differences of the means of the two machines, to do so, we will assume a CI  of 95%, and as the interest is to find out if the new machine has better performance ( machine has a bigger efficiency or the new machine produces more units per unit of time than the old one) the test will be a one tail-test (to the left).

New machine

Sample mean                  x₁ =    25

Sample variance               s₁  = 27

Sample size                       n₁  = 45

Old machine

Sample mean                    x₂ =  23  

Sample variance               s₂  = 7,56

Sample size                       n₂  = 36

Test Hypothesis:

Null hypothesis                         H₀             x₂  -  x₁  = d = 0

Alternative hypothesis             Hₐ            x₂  -  x₁  <  0

CI = 90 %  ⇒  α =  10 %     α = 0,1      z(c) = - 1,28

To calculate z(s)

z(s)  =  ( x₂  -  x₁ ) / √s₁² / n₁  +  s₂² / n₂

s₁  = 27     ⇒    s₁²  =  729

n₁  = 45    ⇒   s₁² / n₁    = 16,2

s₂  = 7,56   ⇒    s₂²  = 57,15

n₂  = 36     ⇒    s₂² / n₂  =  1,5876

√s₁² / n₁  +  s₂² / n₂  =  √ 16,2  + 1.5876    = 4,2175

z(s) = (23 - 25 )/4,2175

z(s)  =  - 0,4742

Comparing z(s) and  z(c)

|z(s)| < | z(c)|  

z(s) is in the acceptance region. We accept H₀  we did not find a significantly difference in the performance of the two machines therefore we suggest not to buy a new machine

The very hight dispersion of values s₁ = 27 is evidence of frecuent values quite far from the mean

3 0
3 years ago
A balloon rose 32 feet in the air. Then it fell to the ground.​
Maslowich

Answer:

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Step-by-step explanation:

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4vir4ik [10]
The third one is the correct answer
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How do I work this problem 11√605​
Gelneren [198K]

Answer:

Step-by-step explanation:

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Step-by-step explanation:

The two equations are the same line.  When two lines are exactly the same, they have infinitely many solutions

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