4 years ago

What is the domain for the function f(x) = 2^x-5.

Mathematics

2 answers:

Westkost [7]4 years ago

5 0

Answer:

All real numbers

Step-by-step explanation:

The domain is the set of x values that we can plug into the function and it will have a y value.

The domain is the "allowed" x values of a function.

Exponential functions of the form $y=a^x$ , where a is a constant have domain of "all real numbers".

The function in this problem is of this form with a "-5" at the end, which shifts the function vertically 5 units down. This doesn't affect x values (or domain)

<em>Hence, the domain is the set of all real numbers.</em>

adelina 88 [10]4 years ago

3 0

Answer:

X= All real Numbers

Step-by-step explanation:

You might be interested in

What is the slope and y-intercept of this<br> equation? y = 5x

denis-greek [22]

Answer:

Slope- 5 y-int- (0,0)

Step-by-step explanation:

y=mx+b, where m=slope and b=y-int. m=5, and we don't see a b, so it must be 0.

8 0

3 years ago

If x^2 = 16(5), then x =

Bogdan [553]

Answer:

$4\sqrt{5}$ or 8.944

Step-by-step explanation:

$x^{2} = 16(5)$

Simplify

$x^{2} =80$

Square root both sides to get x by itself

$\sqrt{x^{2} } =\sqrt{80}$

$4\sqrt{5}$ or 8.944

6 0

3 years ago

Nina checks the temperature at 11:00 a.m. She notices if the temperature rises by 6 more degrees, it will break the record-high

ladessa [460]

Answer:

t=84-6

Step-by-step explanation:

3 0

3 years ago

Two hundred students were polled on their preferred theme for prom. Find the approximate value of the chi-square test statistic.

Kamila [148]

Answer:

8.37

Step-by-step explanation:

dont know but i know this is correct!

3 0

3 years ago

Mia has 40 tens. write how many hundreds. write the number

riadik2000 [5.3K]

Answer:

400

Step-by-step explanation:

You would multiply 40 by 10=400

4 0

4 years ago