1answer.
Ask question
Login Signup
Ask question
All categories
  • English
  • Mathematics
  • Social Studies
  • Business
  • History
  • Health
  • Geography
  • Biology
  • Physics
  • Chemistry
  • Computers and Technology
  • Arts
  • World Languages
  • Spanish
  • French
  • German
  • Advanced Placement (AP)
  • SAT
  • Medicine
  • Law
  • Engineering
Marat540 [252]
3 years ago
13

What is the domain of the functionf(x)=sqrt 9x ? all real numbers all real numbers greater than but not equal to 0 all real numb

er less than or equal to 0 all real numbers greater than or equal to 0
Mathematics
2 answers:
Sophie [7]3 years ago
8 0

Answer:

Domain : [0, ∞) {x | x ≥ 0} (equal to 0 all real numbers greater than or equal to 0).

Step-by-step explanation:

The given function is f(x) = √9x = 3√x

For this function f(x) is defined only if x ≥ 0 because for x < 0 the function is not defined.

f(-x) = 3√(-x) which is not defined.

Therefore domain of this function is domain: [0, ∞) {x | x ≥ 0}

Blababa [14]3 years ago
3 0

Answer:

The domain is all real numbers greater than or equal to zero

Step-by-step explanation:

∵ f(x) = √9x

∴ The domain is all values of x ≥ 0

    because if x = number less than zero it will be negative

    There is no value in the real number for √-ve values

∴ The domain is all real numbers ≥ 0

You might be interested in
A triangle with a perimeter of 13 centimeters is rotated and reflected in the coordinate plane. What is the perimeter of the res
Nataliya [291]

Answer:

13

Step-by-step explanation:

7 0
3 years ago
Rajan needs 1 liter of 15% hydrochloric acid solution for an experiment. He checks his storage cabinet, but he only has a 5-lite
yarga [219]

Answer:

<em>Rajan must use </em><em>0.75</em><em> liters of 5% hydrochloric acid solution and </em><em>0.25</em><em> liters of 45% hydrochloric acid solution.</em>

Step-by-step explanation:

Let us assume that, x liters of the 5% hydrochloric acid and y liters of the 45% hydrochloric acid solutions are combined.

As Rajan need total of 1 liter of solution, so

x+y=1

i.e x=1-y --------------------1

As Rajan needs 5% hydrochloric acid and 45% hydrochloric acid to make a 1 liter batch of 15% hydrochloric acid, hence acid content of the mixture of two acids will be same as of the final one, so

0.05x+0.45y=1\times 0.15

i.e 5x+45y=15 -------------2

Putting value of x from equation 1 in equation 2,

\Rightarrow 5(1-y)+45y=15

\Rightarrow 5-5y+45y=15

\Rightarrow 5+40y=15

\Rightarrow 40y=15-5=10

\Rightarrow y=0.25

Putting the value of y in equation 1,

x=1-0.25=0.75

Therefore, Rajan must use 0.75 liters of 5% hydrochloric acid solution and 0.25 liters of 45% hydrochloric acid solution.

5 0
3 years ago
Is this a proportional relationship c=7n+2
just olya [345]

Answer:

no

Step-by-step explanation:

A proportional relationship must go through (0,0)

c=7n+2

0 = 7(0) +2

0 = 2

This is not true so it is not a proportional relationship

8 0
3 years ago
A broken calculator can double any number or permute its digits (but 0 cannot go up front). Can we start with number 1 and obtai
stira [4]

Answer: it's impossible to obtain 78

Step-by-step explanation: Since the calculator can double any number or permute its digits except 0 

starting with number 1 

1, 2, 4, 8, 16, 32, 64, 128

Therefore, it's impossible to obtain 78 by a series of these operations

8 0
3 years ago
15) Billy charges $15 to mow a yard. He needs at least $200 for the new bicycle that he wants. Write and solve an inequality to
andriy [413]
15x >= 200
x>=14
does this help?

5 0
4 years ago
Other questions:
  • M(3, 4) is the midpoint of mc010-1.jpg The coordinates of S are (4, 1). What are the coordinates of R?
    9·1 answer
  • 12 POINTSSSS!!!
    10·1 answer
  • Select the two pairs of figures that are similar.
    15·1 answer
  • A blueprint is drawn using a scale of 2 mm over 25 ft. What length is represented by 1 mm?
    6·1 answer
  • Given f(x) and g(x) = f(k⋅x), use the graph to determine the value of k.
    5·2 answers
  • How many seconds will it take to get to 150 feet if you can run 11 feet per second
    7·2 answers
  • A stopwatch is generally a more precise tool for measuring a length of time
    14·2 answers
  • In the following word: MATH what percent of the letters are the vowel
    6·2 answers
  • Need someone’s help with this please!!!
    8·1 answer
  • Calculate the area of the Parallelogram.<br><br><br>I will mark as brainliest, Please help quick!
    12·1 answer
Add answer
Login
Not registered? Fast signup
Signup
Login Signup
Ask question!