Answer: The submarine descends with an average speed of 1000 feets/hour during 2 hours
Step-by-step explanation:
- In 2 hours, the submarine descends 2000 feets
- In 1 hour, the submarine descends 2000/2 * 1 = 1000 feets.
Answer: 5x5x5x5
Step-by-step explanation:
5^4 is just multiplying 5 by itself 4 times
Answer:
8/5
Step-by-step explanation:
Slope of the line = (-1-4)/(2-0)= -5/2
Equation of the line :
=> y - y1 = m(x - x1)
=> y - 0 = (-5/2)(x - 4)
=> 2(y - 0) = - 5x + 20
=> 2y + 5x = 20
To make the RHS 16, divide both sides by 20 and multiply by 16:
=> (2y/20)*16 + (5x/20)*16 = (20/20)*16
=> 8y/5 + 4x = 16
compare the equation with ax + by = 16 for y, b = 8/5
Answer:
None of the above.
Step-by-step explanation:
Let us check each of the answer choices one bye one.
Choice A:
solving for y we get:
which is not equal to our function h(x).
Choice B: .
This gives
which is not equal to our function h(x).
Choice C: and .
The first expression does not contain y, thus it is not equivalent to h(x). The second equation already gives the value of y , and we see that it is not equal to h(x).
Therefore we conclude that none of the choices given are correct.
<span>We first calculate the annual straight-line depreciation for the starting 8-year useful lifespan. This is given by the value minus the salvage value (23,000 - 1,500) divided by the 8 year lifespan, resulting in annual depreciation of 2,687.50 dollars. After four years at this rate, the vehicle has depreciated in value by 2,687.50 * 4 dollars (10,750) and has a present value of 12,250 dollars. The useable life is then reduced by 2 years so we must recalculate the straight-line depreciation. This is given by present value minus salvage cost (12,250 - 1,500) divided by the remaining 2 years of usable life. This results in a depreciation expense in both years 5 and 6 of $5,375.</span>