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4 years ago

Need help to solve the maximum

Mathematics

1 answer:

Mekhanik [1.2K]4 years ago

6 0

Answer:

B. 1

Step-by-step explanation:

Your answer for A is correct.

The time it take for the sub to hit the water will be the time between when the submarine started to get lowered and when its distance from the water was zero.

The sub started to get lowered at x = 0.

Now we need to solve for the smallest positive zero of the function.

This function factors to (x - 1)(x - 7)

From this we can tell that the submarine is a water level for time x = 1 and x = 7.

The smallest of these is 1, so that is when the submarine first hit the water and 7 is when it came back out.

The sub started getting lowered at x = 0 and hit the water at x = 1 and because x is in seconds, it took 1 second for the sub to hit the water.

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zavuch27 [327]

Answer:

C. 8 units right and 5 units down

Step-by-step explanation:

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4 years ago

If $10,000 is invested in an account at 4.8% annual simple interest, how long will it take for the account balance

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3 years ago

Read 2 more answers

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stepan [7]

Answer:

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Answer B is correct.

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3 years ago

Find the greatest common factor of the terms in the following expression 18x+12xy

Anarel [89]

<h3>Answer: 6x</h3>

=============================================

Explanation:

Ignoring the variables for now, the GCF of 18 and 12 is 6. This is the largest factor found in both values

18 = 6*3
12 = 6*2

Now let's consider the variables. Both terms have an 'x' in them, but not a y. This means x will be tacked on the 6 we found earlier to get the overall GCF to be 6x.

Note how

18x + 12xy = 6x*3+6x*2y = 6x(3+2y)

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3 years ago