One more question to go: design an experiment to test whether the magnetic polarity of rocks changes as you move away from the mid-atlantic ridge. your experiment needs to include a hypothesis (if…then…) and a procedure to follow. how would you get rock samples? what would you need to measure? what tools would you use? write a hypothesis about how the independent variable (distance from the plate boundary) affects the dependent variable (direction of magnetic polarity).

D.

In a right-angled triangle: 1- the hypotenuse is the longest side2- we can apply pythagorean rule which states that: (hypotenuse)^2 = (side1)^2 + (side2)^2for the given triangle,longest side is 15 cm  side1 = 9 cmside2 is 12 cm  to check whether the triangle is right-angled or not,compare (15)^2 to the summation of (9)^2 and (12)^in other words, compare 225 to the summation of 81 and 144if they are both equal, then the triangle is right-angles, otherwise, it is not.you haven't provided the diagram showing her work, so i cannot tell the choice. however, apply my explanation to the question you have.