Mandy is trying to subtract 9 - 15, and she has asked you for help. How would you explain the process of solving the problem to Mandy, using a number line? Complete the explanation.
Start at (select) v9 on the number line. Then, move 15 places to the (select)v, because she is
subtracting a (select) v number. She will end on the number which is the answer.

answer:  

step-by-step explanation:

here x represents the height of the pole,

and, the height of the shadow of the pole is 12 feet.

also, the angle of elevation from the top of the pole is 40°,

therefore,

by the low of sine,

which is the required equation for finding the value of x,

what shape is

3

step-by-step explanation:

because where the point where the 2 lines intersect is (3,-1) the x value is 3

where is the option given