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Contact [7]
3 years ago
11

For what values (cases) of the variables the expression does not exist: a/2x−4

Mathematics
1 answer:
lana66690 [7]3 years ago
5 0

Answer:

x=2

Step-by-step explanation:

Given the expression: \dfrac{a}{2x-4}

The expression is undefined or "does not exist" when the value of the denominator equals zero.

Therefore, set the denominator of the function equals to zero to find the values at which it does not exist.

2x-4=0

2x=4

x=2

Therefore, at x=2, the function is undefined.

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Wich statement is true about a line and a point?
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A line are two rays in opposite directions and go on forever, and a point is a location on any type of line segment or shape ( see pictures for examples)

3 0
3 years ago
Read 2 more answers
Gambling at a slot machine is an example of which reinforcement schedule?
gogolik [260]

Answer:

d. Variable ratio

Step-by-step explanation:

We are asked to determine that gambling at a slot machine is an example of which reinforcement schedule.

Let us see our given choices one by one.

a. Fixed ratio

We know that in fixed ratio schedule, reinforcement is delivered after the completion of a number of responses. An example of fixed ratio is a reward to every 6th response.

b. Fixed interval

We know that in fixed interval schedule the first response is rewarded only after a specified amount of time has elapsed. An example of fixed interval schedule is weekly paycheck.

c. Variable interval

We know that in variable interval schedule, the reinforcement is delivered at changing and unpredictable intervals of time.

d. Variable ratio

In variable ratio schedule, a response is reinforced after an unpredictable number of responses. Gambling and lottery are examples of variable ratio.

Therefore, option 'd' is the correct choice.

8 0
2 years ago
A pear costs x cents. An orange costs y cents less
VARVARA [1.3K]

Step-by-step explanation:

Pear cost=x

Orange cost=x-y

4 pears= 4x

6 oranges=6x-6y or x-y x6

Use ratio.

Pears: x cents

4 Pears: 6x cents

You x4 on each side. Same with oranges.

Orange: x-y

6 oranges: x-y x6

You x6 on each side.

8 0
2 years ago
a family is staying in a hotel and the total bill for 4 nights is $400. there is a one-time $60 tax fee. what was the nightly ra
Natasha2012 [34]

Answer:

Yes. For example, a hotel advertises, “Buy 4 nights, get the 5th night free.” Taking advantage of the deal, a customer purchases 5 nights for $400. Each night of the customer’s 5-night stay is subject to the fee.

Step-by-step explanation:

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soldier1979 [14.2K]

Answer:

26. the y intercept is -6

27. the y intercept is 2

28. the y intercept is -3

29. I cant answer because it is cut off in the picture...

Step-by-step explanation:

These equations follow a simple formula- the slope formula

y=mx+b

In this formula:

b is the y intercept

m is the slope that is multiplied by x

hope this helps:)

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3 0
2 years ago
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