Which measure is cloest to the length of a side of a square that has an area of 221 square feet? 11.0 ft 14.69 ft 16.4 ft 55.2 f
1 answer:
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Given:
30-hour review course average a score of 620 on that exam.
70-hour review course average a score of 749.
To find:
The linear equation which fits this data, and use this equation to predict an average score for persons taking a 57-hour review course.
Solution:
Let x be the number of hours of review course and y be the average score on that exam.
30-hour review course average a score of 620 on that exam. So, the linear function passes through the point (30,620).
70-hour review course average a score of 749. So, the linear function passes through the point (70,749).
The linear function passes through the points (30,620) and (70,749). So, the linear equation is:
Adding 620 on both sides, we get
We need to find the y-value for .
Therefore, the required linear equation for the given situation is and the average score for persons taking a 57-hour review course is 707.1.
Answer:
Option A
Step-by-step explanation:
22+(-32) is the same thing as 22-32.
Option A:
Option A's expression has the same value as the expression given.
Option B:
22+(22)+(-10)
Option B's expression does not have the same value as the expression given.
Option C:
Option C's expression does not have the same value as the expression given.
Option D:
Option D's expression does not have the same value as the expression given.
<h3>The correct answer should be A: 22+(-22)+(-10).</h3>