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marysya [2.9K]
2 years ago
7

A+b=25 What is the value of 2a + 2b + 4

Mathematics
1 answer:
Dima020 [189]2 years ago
3 0
54 is your answer. Good luck
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If a and b represent numbers, which of the following statements represents the commutative property of multiplication?
Gemiola [76]

The commutative property of multiplication states that the numbers can be multiplied in any order.

a+b = b+a : Commutative property of addition

a*b = b*a : Commutative property of multiplication

a+0=a : Additive identity property  

a*1 =a : Multiplicative identity property  

Answer : a*b =b*a


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Step-by-step explanation:

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A friend of yours, a senior, took the Graduate Record Exam in September and scored in the 99th percentile. In February, your fri
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His/her lowered score was most likely due to statistical regression.

<h3>How to determine the reason?</h3>

The missing options in the question are:

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D.  Testing E.  Statistical regression

From the question, we have:

  • September = 99th percentile
  • February = 90th percentile

A change (whether higher or lower) in the score is caused by statistical regression.

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2 years ago
2. <br> Find the area of the region bounded by the graphs of y = -x2 + 3x + 4 and y = 4. (5 points)
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Answer:

4.5 sq. units

Step-by-step explanation:

area = -⅓x³+3/2 x² ] 0 to 3

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= -9 + 13.5

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