Answer:
T = 3.5 hours
Step-by-step explanation:
this is a rate problem.
an experienced surveyor takes 7 hours to survey a roadbed
an apprentice surveyor takes 9 hours to survey a roadbed
the rate of the experienced surveyor =
the rate of the apprentice surveyor = 
if the two work together , 
T = 
T = 3.5 hours
Answer:
surface area of the triangular prism
(8×6)+(15×10)+(15×6)+(8×15)
48+150+90+120
408 m²
Answer:
Step-by-step explanation:
-4 and 3
The answer is D, all the y points are positive if it is reflected over the x axis