The diagram shows a triangle. All the measurements are in cm.
The perimeter of the triangle is 70 cm.
The area of the triangle is A cm.
Work out the value of A.
4x + 1
3x - 1
+
3x

2people are trying different phones to see which one has the better talk time. chatlong has an average of 18 hours with a standard deviation of 2 hours and talk-a-lot has an average of 20 hours with a standard deviation of 3. the two people who tested their phones both got 20 hours of use on their phones. for the z-scores i got 1 for the chatlong company and 0 for talk-a-lot. what is the percentile for each z-score?

If we pull out the middle player of team a and the fourth player of the team b. what will be the force of team a and team b? what is their sum of forces

Ay = 6, cy = 15, and yd = 4. what is the measure of by?