Asubmarine descends at a rate of 2.6 kilometers per hour. if the ocean floor is 6.24 kilometers below sea level, how long will it take the submarine to descend to the ocean floor?

Speed is the rate of change of distance over time.

It will take the submarine 2.4 hours to descend to the ocean floor

The speed is given as:

Speed is calculated using:

When distance = 6.24 km

Substitute

Make Time the subject

Hence, it will take the submarine 2.4 hours to descend to the ocean floor

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Answer

Find out the how long will it take the submarine to descend to the ocean floor

To proof

Formula

where  d  =  distance traveled (or descended),

r  = rate of travel , t  = time

As given

A submarine descends at a rate of 2.6 kilometers per hour. If the ocean floor is 6.24 kilometers below sea level .

put all the values in the above formula

t = 2.4 hour

it take 2.4 hours the submarine to descend to the ocean floor .

Hence proved

80π/3 or about 83.775

step-by-step explanation:

since a cone is 1/3 of a cylinder, we need to find the base's area. since area = πr^2, we get 16π. then, multiplying this by 5, we get 80π. dividing by 3, since the cone's volume is 1/3 of that of a cylinder's, we get 80π/3.

hope this !

answer is 8x+24

area of vanessa's patio = length × width

given, length = (3x² + 5x + 10)

width = (x² - 3x - 1)

area of vanessa's patio = (3x² + 5x + 10)(x² - 3x - 1)

= 3x²(x² - 3x - 1) + 5x(x² - 3x - 1) + 10(x² - 3x - 1)

= 3x⁴ - 9x³ - 3x² + 5x³ - 15x² - 5x + 10x² - 30x - 10

= 3x⁴ - 4x³ - 8x² - 35x - 10

hence, expression of vanessa's patio = (3x⁴ - 4x³ - 8x² - 35x - 10)