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3 years ago

Which table shows a function that is decreasing only over the interval (-1, infinity)

Mathematics

2 answers:

FromTheMoon [43]3 years ago

7 0

Answer:

Its the last table on Edge-nuity and Quizlet. I researched. Its the one that starts with (-3, -5), with x as -3 and f(x) as -5. I hope this helps anyone who sees, cause this is right!

Step-by-step explanation:

maxonik [38]3 years ago

3 0

Answer:Table 4th is showing the function that is decreasing only over the interval

Step-by-step explanation:

We have been given four tables below:

To determine the function that is decreasing only in the given interval

We will check the values after -1 in all four tables

The table in which values is only decreasing after -1 will be the table which shows a function is decreasing only.

In table 1 the value of x is increasing

In table 2 and 3 the value is increasing and then decreasing but we will consider only decreasing case

Therefore, Table 4th is correct.

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Five less than one third of a number is two more than half of the same number. Find the number.

I am Lyosha [343]

5 less (-5) than 1/3 of number (n/3) is (=) 2 more than (2+) half of the number (n/2)

-5+n/3=2+n/2
add 5 to both sides
n/3=n/2+7
times 6 both sides
2n=3n+42
minus 2n both sides
0=n+42
minus 42 boh sides
-42=n

the number is -42

the number is 18

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3 years ago

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Ede4ka [16]

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Step-by-step explanation:

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3 years ago

In a flight of 600 km, the speed of the aircraft was slowed down due to bad weather. The average speed of the trip was decreased

UkoKoshka [18]

The average speed would be 600 km/hr.

Step-by-step explanation:

Let the original speed be 'x'

Let the decreased speed be 'x-200'

Distance = 600 km

Time increased by 30 minutes

According to question, it becomes,

$\dfrac{600}{x-200}-\dfrac{600}{x}=\dfrac{30}{60}\\\\\dfrac{x-(x-200)}{x^2-200x}=\dfrac{1}{2\times 600}\\\\\dfrac{200}{x^2-200x}=\dfrac{1}{1200}\\\\240000=x^2-200x\\\\x^2-200x-240000=0\\\\x=600,-400$

So, The average speed would be 600 km/hr.

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3 years ago

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djverab [1.8K]

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ludmilkaskok [199]

Answer:

Step-by-step explanation:

You start with each membership for each gym as your starting point, then you add the personal sessions to that number.

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3 years ago