$\bf \sqrt{y}+3\sqrt{x}(2\sqrt{y})-\sqrt{xy}\implies \sqrt{y}+(3\cdot 2)\sqrt{x\cdot y}-\sqrt{xy} \\\\\\ \sqrt{y}+6\sqrt{xy}-\sqrt{xy}\implies \stackrel{\textit{adding like-terms}}{\sqrt{y}+5\sqrt{xy}}$

4 0

3 years ago

Find the domain of f(x). f(x) = √9x+36

horsena [70]

Answer:

The domain in interval notation is [-4,∝) or set build: {x|x $\geq$

Step-by-step explanation:

I'm assuming the 9x and the 36 are in the root

$\sqrt{9x+36}$

first we must solve for x

${9x+36}\geq 0$

substract 36 to both sides

${9x}\geq -36$

divide by 9 to both sides

$\frac{9x}{9} }\geq \frac{-36}{9}$

simplify left side

$x\geq \frac{-36}{9}$

simplfy right side

$x\geq -4$

The domain in interval notation is [-4,∝) or set build: {x|x $\geq$ -4}

6 0

3 years ago

Please help will give brainliest

torisob [31]

Answer:

75.89

Step-by-step explanation:

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3 0

3 years ago

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