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3 years ago

Which function has a domain of all real numbers?

Mathematics

2 answers:

MatroZZZ [7]3 years ago

6 0

Sinx=Y has a domain of all real numbers.

mr Goodwill [35]3 years ago

4 0

Answer: The answer is (A) y = sinx.

Step-by-step explanation: We are given to select the correct function from the options that has a domain of all real numbers.

We know that only some function and cos function has a domain of all real numbers.

Thus, out of the given options, only the since function has a domain $(-\infty,\infty)$ and range of $[-1,1].$

The domain of the other three functions are different from some function.

Thus, the correct option is (A) y = sinx.

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Use multiples to write two fractions equivalent to 7/9.

Nitella [24]

Answer:

$\frac{14}{18}$ , $\frac{21}{27}$

Step-by-step explanation:

To create equivalent fractions multiply the numerator and denominator of the fraction by the same multiples.

Using a multiple of 2, then

$\frac{7}{9}$ = $\frac{7(2)}{9(2)}$ = $\frac{14}{18}$

Using a multiple of 3, then

$\frac{7}{9}$ = $\frac{7(3)}{9(3)}$ = $\frac{21}{27}$

4 0

4 years ago

Is this the right answer?,please help before I turn it in

astraxan [27]

Yes it’s the right answer, I just did it myself and I got -4

5 0

3 years ago

Pls help if you can Thx!

N76 [4]

GIVEN:

Cost of a taco and a cup of tea = $2.10

x + y = 2.10 ...(1)

Cost of 2 tacos and 3 cup of tea = $5.15

2x + 3y = 5.15 ...(2)

ANSWER:

On solving eq(1), we get

x = 2.10 – y

Substitute the value of x in eq(2), we get

2(2.10 – y) + 3y = 5.15
4.20 – 2y + 3y = 5.15
y = 5.15 – 4.20
y = 0.95

So, x = 2.10 – 0.95

x = 1.15

Hence, Cost of a taco is $1.15

So, <u>Correct choice</u> - [E] $1.15

6 0

3 years ago

Read 2 more answers

Which expressions are equivalent to (6273)−4?

goblinko [34]

Answer:

the third one and the one

Step-by-step explanation:

5 0

3 years ago

Find the missing angle of the triangle.

Roman55 [17]

Is there a picture of the triangle?

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3 years ago