Answer:
sigma means the sum of all values then the sqrt of n I presume to be the amount of number.(I am not sure if this answer your question as it is very vague.
Step-by-step explanation:
3. 9 10/11
5. 11 6/15
7. 11 5/6
9. 9 7/8
The answer is 45 because supplement means the sum of 180 so 180 divided by 4 is 45 and t=45
Answer:
In a proportion, the cross products of the extremes equal the cross product of the means.
Step-by-step explanation:
True
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Answer: Choice A</h3>
Arrow from 0 to -8 (pointing left). Another arrow from -8 to -6 (pointing right)
See diagram below
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Explanation:
Let's think of this in terms of money. Writing -8 means we are 8 dollars in debt. Since -8 is listed first, this means we start at 0 and go 8 units to the left along the number line, to land on -8.
Then we'll go 2 units to the right to land ultimately at -6. This is because of the "-(-2)" portion, which is the same as "+2". Subtracting a negative is the same as adding. The two negatives cancel each other out.
Going back to the money example, if we have a balance of -8 (we're 8 dollars in debt) and taking away 2 IOU notes means we're 6 dollars in debt. Subtracting a negative can be thought of as taking away debt.
Side note: If we had -8-2, then we would go 2 units to the left of -8 to land on -10 instead.