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2 years ago

What is the domain and range of f(x)=4 x 2 to the x power

Mathematics

1 answer:

maria [59]2 years ago

6 0

Answer:

domain: all real numbers
range: all positive real numbers

Step-by-step explanation:

The function is defined for all values of x, so the domain is all real numbers.

An exponential function has a horizontal asymptote at y=0. Multiplying it by 4 doesn't change that. The value cannot be zero, and it cannot be negative. The range is all positive real numbers.

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25 is what percent of 20?

denis-greek [22]

Answer:

20 is 80% of 25

Step-by-step explanation:

We assume, that the number 25 is 100% - because it's the output value of the task.

2. We assume, that x is the value we are looking for.

3. If 100% equals 25, so we can write it down as 100%=25.

4. We know, that x% equals 20 of the output value, so we can write it down as x%=20.

5. Now we have two simple equations:

1) 100%=25

2) x%=20

where left sides of both of them have the same units, and both right sides have the same units, so we can do something like that:

100%/x%=25/20

6. Now we just have to solve the simple equation, and we will get the solution we are looking for.

7. Solution for 20 is what percent of 25

100%/x%=25/20

(100/x)*x=(25/20)*x - we multiply both sides of the equation by x

100=1.25*x - we divide both sides of the equation by (1.25) to get x

100/1.25=x

80=x

x=80

8 0

2 years ago

Read 2 more answers

Which expression is equivalent to 4(5 − 3) 9 − 3 8x 20 − 12 8 + 1

Ludmilka [50]

The correct answer is 20- 12

4 0

2 years ago

Please help need this before 4:15pm

yawa3891 [41]

Answer:

Top right i believe

Step-by-step explanation: the elements that make up life are carbon, hydrogen, oxygen, nitrogen, phosphorus, and sulfur.

7 0

2 years ago

The function F(c)=log0.5x is decreasing true or false

nikitadnepr [17]

Answer:

true

Step-by-step explanation:

We assume you intend your function to be ...

$F(x)=\log_{0.5}x$

A logarithm with a base less than 1 is a decreasing curve. Here, the base appears to be 0.5, a value less than 1. Hence the curve is decreasing.

7 0

3 years ago

A coin is flipped, and a number cube is rolled. What is the probability of getting heads on the coin and a number greater than 5

Art [367]

Answer:

1/3

Step-by-step explanation:

3 0

1 year ago