Sarah and Joshua are trying to estimate the height of a parking garage using a 50 yards-long rope. Joshua is in the floor while Sarah stands on the top level of the garage. Each holds an end of the rope. Joshua walks away until the rope is completely tense, making a 30° angle with the floor and 60° with the garage wall. Joshua says the height can be calculated using the function sin (30) and determines the height is 25 yards. Sarah says the correct expression to be used is cos (60) and her calculation is that the height is 25 yards. Which one is correct?​

Both are correct, the height can be calculated using either expression if angles are complementary.

Step-by-step explanation:

answer: a

step-by-step explanation:

if xy ~ yz therefore xy would be the same length as yz

to plot points   for x just start at the origin (middle) and go to the left however many times it say(if the number is a positive) if the number is a negative then go right however many times it says if it is 0 go nowhere

now keep you pencil there and go up however many times it says on y(if it is positive) if it is negative then go down however many times it says. if it says 0 go nowhere.

you have just plotted a point! now when you finish plotting all of them connect them with a ruler

plot each point as (-3, 7), (0,4), (3,1), (8,-4)   in the parenthesis on the left of the comma is x and the right is y.