I got D. 7.5 because the sides are in a 4 to 1 ratio. The corresponding side of 40 on the smaller triangle is 10 and 40/10 is 4. to find the corresponding side of 30, do 30/4 and you get 7.5
This is simple pythagoras, its just a²+b²=c². First you find the hypotenuse, which is 97; now you have the equation: x²+72²=97²
x²=9409-5184
x= √4225
x=65
the answer is 65m
Answer:
t = d/r = 2/20 = .1 hour = 6 minutes
Step-by-step explanation:
The answer is x=4 or x= -5/2 or x =0