Ascuba diver is swimming 15 feet below the water’s surface. the diver swims up slowly at 0.5 feet per second for 4 seconds; and then stops to look at an eel. finally, the diver swims up for 3 more seconds at 0.4 feet per second. what is the diver’s new depth

The diver's new depth is 11.8 feet below the water's surface.

Step-by-step explanation:

Since we have given that

Depth below the water's surface = 15 feet

The diver swims up slowly at 0.5 feet per second for 4 seconds.

Number of miles he swims up is given by

Number of miles he swims up for 3 more seconds at 0.4 feet per second.

So, Number of miles he swims up is given by

So, the diver's new depth would be

Hence, the diver's new depth is 11.8 feet below the water's surface.

the answer is b.

step-by-step explanation:

by the trigonometric ratio tangent, tangent equals opposite divided by adjacent.

therefore, tan(50) equals ac/3

multiply each side by 3 to get: ac=3tan(50)

the answer is b.