What are the domain and range of the function?

f(x)=−3x√

domain: (−∞, 0]

range: (−∞, 0]

domain: [3, ∞)

range: (−∞, ∞)

domain: [0, ∞)

range: [0, ∞)

domain: [0, ∞)

range: (−∞, 0]

  see below

Step-by-step explanation:

The square root function produces a non-negative output for a non-negative input. When its output is negated, it produces a non-positive output for a non-negative input.

The input (domain) is from 0 to infinity: [0, ∞).

The output (range) is from negative infinity to zero: (-∞, 0].

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A graph of the function is included for your convenience.

step by step resolutions

1) n+n+1+n+2=51

3n+3=51

3n=48

n=16

the three numbers are 16, 17 and 18.

2) x+15=4x

3x=15

x=5

radha is now 5 years old

3) the two digits are x and y.

y=3x

(10x+y)+(10y+x)=88

y=3x

11x+11y=88

y=3x

x+y=8

x+3x=8

x=2

the original number can be either 28 or 82.

4) n+(n+2)+(n+4)=48

3n+6=48

3n=42

n=14

the numbers are 14, 16 and 18.

5) y=x+3

10y+x+10x+y=143

y=x+3

11x+11y=143

y=x+3

x+y=13

x+x+3=13

2x=10

x=5

the original number can be 57 or 75.

hope this !

p< -25

t> 12

r> 17

step-by-step explanation: