Answer:
I) 616
II) 4.53
Step-by-step explanation:
For the first one, just plug in 7 as R.
A = 4 x (22/7) x 7^2
A = 12.57142857 x 49
A = 616
For the second, one, put 452 4/7 as A.
452 4/7 also is 258.285
258.285 = 4 x (22/7) x r^2
258.285 = 12.57142857 x r^2
Divide both sides by 12.57142857
20.55372408 = r^2
Square root 20.55372408 for R.
4.533621519 = R
OR
4.53 = R
5 eggs/hen
hope this helps
If the relationship between two quantities is a proportional relationship, this relationship can be represented by the graph of a straight line through the origin with a slope equal to the unit rate. For each point (x, y) on the graph, ž is equal to k, where k is the unit rate. The point (1, k) is a point on the graph.
Hope this helps...
The number of waffles there were initially is; 80 waffles
<h3>Simultaneous equations</h3>
Let the number of pancakes be x.
Let the number of waffles be y
Hence, after she baked 45 more waffles, and her grandchildren eat 12 pancakes, what she has is;
- y +45 waffles and x-12 pancakes.
There were 17 more waffles than pancakes.
- y+45 = x-12 +17.......equation (1)
And initially, x = 1.5y
Hence, to determine y, we must substitute x = 1.5y into equation (1)
Therefore, we have;
Read more on simultaneous equations;
brainly.com/question/16863577
The term that best describes the given statement above is the third option which is negation. In geometry, a negation statement is the opposite of a given mathematical statement. If a statement is true, then its negation is false. And if a statement is false, then its negation is true. The given statement above is false, therefore, it is a negation of the true statement.