Instructions: select the correct answer from each drop-down menu. the sides of ∆abc are 30 units, 40 units, and 60 units long. the corresponding sides of ∆xyz are r times as long as the sides of ∆abc. the expression that gives the perimeter of ∆xyz is . if the area of ∆abc is n square units, the area of ∆xyz is square units

Girardo is using the model below to solve the equation . girardo uses the following steps: step 1 add 4 negative x-tiles to both sides step 2 add 1 negative unit tile to both sides step 3 the solution is which step could be adjusted so that gerardo's final step results in a positive x-value? in step 1, he should have added 4 positive x-tiles to both sides. in step 1, he should have added 3 negative x-tiles to both sides. in step 2, he should have added 4 negative unit tiles to both sides. in step 2, he should have added 1 positive unit tile to both sides.

Ahiker stands at an unknown elevation before he ascends 2 miles up a mountain to an elevation of 9 miles. find the elevation of the hiker before his ascent.

Which of the following circles have their centers in the third quadrant?