A contractor needs to repair a sign on a building, At a distance away from the base of the building, he estimates that the angle of elevation to the sign
is 50°. He then moves 30 m closer to the base of the building and estimates
the angle of elevation to be 60°. How high above the ground is the sign?​

b. 1.25 hr

step-by-step explanation:

if you have a constant speed of 60 mph, then you have a ratio between 60 mi. to 1 hr. dividing both sides by 60 we get the ratio

1 mi. to

then mult. both sides by 75 we get the ratio

75 mi. to

simplifying we get

75 mi. to

or 1.25 hr.

where is the diagram? shown below where? ?

step-by-step explanation:

except if the answer is in the value of money, then, it will matter. it will have to be $0.40, but i can tell this is not a money question, so .4 should be the right one.