- The expression was rewritten using the commutative law of addition.
- Line 1 says 3 + 4, which could be represented using dots as ••• + •••• for a total of 7 dots.
- Line 2 says 4 + 3, which could be represented using dots as •••• + ••• for a total of 7 dots.
<h3>What is the
commutative law of addition?</h3>
The commutative law of addition is also referred to as the law of cumulative addition and it states that if two numbers are added together, then, the outcome is equal to the addition of their interchanged position because addition is considered as a binary operation.
This ultimately implies that, the sum of addends would always be the same (equal) regardless of their arrangement in accordance with the commutative law of addition. Mathematically, the commutative law of addition can be represented using the following formula:
A + B = B + A.
In this context, we can reasonably infer and logically deduce that the given expression was rewritten using the commutative law of addition.
In conclusion, Line 1 says 3 + 4, which could be represented using dots as ••• + •••• for a total of 7 dots. Line 2 says 4 + 3, which could be represented using dots as •••• + ••• for a total of 7 dots.
Read more on commutative law of addition here: brainly.com/question/778086
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23.
Work:
5(6)-7
5(6)=30
30-7=23
To calculate the z-statistic, we must first calculate the
standard error.
Standard error is standard deviation divided by the square
root of the population. In this case, it is equal to 2.68.
The z-score is defined the distance from the sample to the
population mean in units of standard error.
z = (195 – 208)/2.68 = -4.86
Answer:
R = 55-N
Step-by-step explanation:
How many raisins are left in a jar of 55 raisins after you have eaten some?
Is it
R=55-N
<span>12800
When rounding a number to the nearest hundred you look at the number in the hundreds place, in this case it the digit 7. To decide if you will be rounding it up to 8, or leaving it at 7 you need to look at the digit to the right of it, in this case there is an 8 in the tens place. It that digit is a 5 or greater you round up, if that digit is a 4 or less you leave it as it is. Since the digit is 8 and that is a five or greater you will round up to place an 8 in the hundreds place. The places to the right of the number place you are rounding become zeros.</span>
