An unmanned submarine ascends from the ocean floor at a rate of 2 meters per second. if the ocean floor is 4220 feet below sea level, write a linear equation that describes the altitude, a, of the submarine in terms of the number of seconds, t, that the submarine has been ascending.

a=4220-2t

This would be if we are finding the altitude of the submarine from the surface of the water(how many meters away from the surface it is). I don't know what it would be if you want to know from the bottom of the ocean.

4220 - 2t = a

Step-by-step explanation:

I'm not exactly sure how to explain it, but the answer is right there. If you look at the problem and the answer, you might be able to figure out how it's done.

:)

pentagon

step-by-step explanation:

the coordinates   a(5, -2), b(3,-1),c(-4,-4) d(-3,8) and e(-1,4) forms the vertices of the polygon when they are connected in order.

in order to classify that which polygon is it with the given coordinates, first count the number of vertices and then count the number of sides it can make with these vertices.

since, the given coordinates have five vertices, therefore, it will make five sides. moreover, pentagon is regular in nature therefore it will be convex.

now, a polygon with five sides is known as pentagon, therefore, the given polygon is the pentagon.

answer: a. 13/44

step-by-step explanation: judging by the information given to us, we are looking for experimental probability. we can see that 13 males have chosen chocolate ice cream. there are 44 ice creams in total (remember that the total is always the denominator). so our answer is 13/44.