Find the area of a triangle whose two sides are 12 inches and 14 inches long, and has a perimeter of 34 inches.

Step-by-step explanation:

We have two sides

and the preimeter

We can calculate the length of the third side:

substitute

Use the Heron's formula:

where

substitute:

answer: given that the roller coaster can accommodate 1600 riders per hour, thus the roller coaster can accomodate 1600 / 60 = 26.67 riders per minute.

given that there are 345 people in the line, the number of minutes it will take for the 345 persons to get into the roller coaster is given by 345 / 26.67 = 12.94 minutes.

therefore, it will take you 12.94 minutes to get to the front of the line.

step-by-step explanation:

5.762159

step-by-step explanation:

it would be 9 because when it is the nine is over five so that would mean it rounds up to 90 or 9