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3 years ago

What is the value of (h o k)(2)

Mathematics

2 answers:

Helga [31]3 years ago

7 0

Answer:

-3

Step-by-step explanation:

h(k(2)) = h(k(x=2)) = h(-2) = h(x= -2)= 3/( -2+1) = 3/-1= -3

Marina86 [1]3 years ago

6 0

Answer:

-3

Step-by-step explanation:

Sorry if I'm wrong.

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HEEELP

Drupady [299]

Answer: (c)

Step-by-step explanation:

Given

$f(x)=\dfrac{1}{x-3}\\\\g(x)=\sqrt{x+5}$

Here, $\sqrt{x+5}\ \text{is always greater than equal to 0}\\\Rightarrow x+5\geq 0\\\Rightarrow x\geq -5\quad \ldots(i)$

To get $f\left(g(x)\right)$ , replace $x$ in $f(x)$ by $g(x)\ \text{i.e. by}\ \sqrt{x+5}$

$\Rightarrow f\left(g(x)\right)=\dfrac{1}{\sqrt{x+5}-3}\\\\\text{Denominator must not be equal to 0}\\\\\therefore \sqrt{x+5}-3\neq0\\\Rightarrow \sqrt{x+5}\neq 3\\\Rightarrow x+5\neq 9\\\Rightarrow x\neq 4\quad \ldots(ii)$

Using $(i)$ and $(ii)$ it can be concluded that the domain of $f\left(g(x)\right)$ is all real numbers except 0.

Therefore, its domain is given by

$x\in [-5,4)\cup (4,\infty)$

Option (c) is correct.

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Sphinxa [80]

Answer:

Y= -4X + 8

Step-by-step explanation:

Use rise/run to find slope (y2- y1/ x2-x1). Plug the slope into point-slope form [y-y1= m(x-x1)]. this is your answer

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10x +y =6 written in slope intercept form

hodyreva [135]

Answer:

y = -10x + 6

Step-by-step explanation:

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Four friends split equally a lunch bill of $36.69 plus 20% tip how much did each person pay

nikdorinn [45]

20% of 36.69 is 7.338

36.69 + 7.338 = 44.02800 divided by 4 = $11.007 (rounded)

Each friend paid $11.01

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How do you write the number 506,709 in word form and expanded form

ICE Princess25 [194]

Word form-five hundred six thousand,seven hundred nine Expanded form-500,000+6,000+700+9

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