Adiver is exploring the waters of the great barrier reef.

a. she is currently-5 feet from the surface of the water and plans to explores a shipwreck that is at -75 feet from the surface. she then continues to moves to the surface at the same rate. how long will it take the diver to reach the surface?

b. when she is done exploring the reef, she ascends at a rate of 5 feet per minute. once she reaches a height of -30 feet, she must rest for 15 minutes to allow her body to adapt to the changing water pressure. she then continues to the surface at the same rate. how long will it take the diver to reach the surface?

you need to show us the graph.

step-by-step explanation:

answer: the answer is (b) amie should have multiplied

step-by-step explanation: given a sphere and a cylinder with same radius and height.

let, 'r' be the radius of the cylinder and sphere and 'h' be the height of the cylinder. according to the question,

r = h.

now, the volume of the sphere will be

and the volume of the cylinder will be

therefore, we have

thus, ammie should have multiplied the volume of the sphere

$113.42

i hope that is right.

step-by-step explanation:

josh is incorrect

x= 7 and x= -1

step 2 is wrong and honestly first step is not needed, you just need to figure out the factors

i know its wrong because if you plug in the solutions josh found, they do not work (in the original equation)

x^2 -6x -7 = 0

(x-7) (x+1) = 0

x-7=0 x+1=0

x= 7 x= -1