Answer:
Step-by-step explanation:
1) Use square sum: (a + b)² = a² + 2ab + b².
<u>Therefor</u><u>,</u><u> </u><u>the</u><u> </u><u>answer</u><u> </u><u>is</u><u> </u><u>x</u><u>²</u><u> </u><u>+</u><u> </u><u>2xy</u><u> </u><u>+</u><u> </u><u>y</u><u>²</u>.
Answer:
The inequality is
Step-by-step explanation:
Total time:
The total time to complete the test is the sum of the number of multiple-choice questions multiplied by the time it takes to solve each and the number of short-answer questions multiply by the time it takes to solve each.
In this question:
Same number(n) of both.
Multiple-choice takes 2 minutes, short-answer takes 3.5 minutes. The total time is given by:
Write an inequality to determine how many questions, n, the teacher can include if the test must take students less than 45 minutes to complete.?
This means that:
So
The inequality is
Answer:
Right Angle- an angle of 90°, as in a corner of a square or at the intersection of two perpendicular straight lines.
Straight Angle-A straight angle is 180 degrees. This is a straight angle.
Step-by-step explanation:
180 is a straight angle and 90 is a Right angle
