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sergejj [24]
2 years ago
15

Describe how you regroup when you find the sum of 64 + 43

Mathematics
2 answers:
Georgia [21]2 years ago
7 0
64+ 43
= (60+4)+ (40+3)
= (60+40)+ (4+3) (combine like terms)
= 100+7
= 107

The final answer is 107~
Leno4ka [110]2 years ago
4 0
All i do is i think of 4+3 which equals 7 and then 6+4 which equals 10 then i put the numbers together.

so my answer is 107

         64
         43
----------------
        107
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A given set of values is found to be a normal distribution with a mean of 140 and a standard deviation of 18.0. Find the value t
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Answer:

The value that is greater than 45% of the data values is approximately 137.84.

Step-by-step explanation:

The key is transforming values from this distribution to a z-score range and finding the corresponding value using a z-score table.

We are looking for a value x which attains a critical z-score that corresponds to the (100-45)%=55-th percentile:

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E varies directly with the square root of C. If E=40 when C=25, find: C when E = 10.4
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Step-by-step explanation:

E is proportional to √C

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C = ?

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Answer:

The correct option is;

d. 24.2 to 25.6

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Here we have a sample with unknown population standard deviation, we therefore apply the student t distribution at 64 - 1 degrees of freedom

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