Tina also worked out the total number of points scored by the 16 students in the game. Here is her working.
N THIS AREA
(0 x 1) + (1 x 3) + (2 X 5) + (3 x 4) + (4 x 3) = 1 + 3 + 10 + 12 + 12 = 38
Tina made a mistake in her working to find the total number of points scored.
(b) Describe the mistake that Tina made.

a. 12.5 kg

step-by-step explanation:

f = ma

so

m = f/a = (2500 n)/(200 m/s²) = 12.5 kg

1 n = 1 kg·m/s²

step-by-step explanation:

assume that you have 3 different side lengths.   apply the pythagorean theorem here:   square each of the two shortest sides; call them a and b, so that their squares are a² and b².   also square the longest side, calling the result c².

now, if a² + b² = c² is true, the triangle is a right triangle; otherwise it is not a right triangle.