3 years ago

My teacher split c pieces of candy among 23 students. Writing Expressions with answers please.

Mathematics

1 answer:

Kryger [21]3 years ago

8 0

Answer:

C times 23

Step-by-step explanation:

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Plz help me i need it

Nimfa-mama [501]

Answer: $\bold{d)\quad f^{-1}(x)=\dfrac{e^x}{5}}$

Step-by-step explanation:

To find the inverse, swap the x's and y's and solve for y. Note: f(x) is y

$y = ln(5x)\\\\\text{Swap the x's and y's:}\\x=ln(5y)\\\\\text{Apply e to both sides:}\\e^x=e^{ln(5y)}\\\\e^{ln}\ \text{cancels out:}\\e^x=5y\\\\\text{Divide both sides by 5:}\\\dfrac{e^x}{5}=y\\\\\large \boxed{f^{-1}(x)=\dfrac{e^x}{5}}$

8 0

2 years ago

Which choice is equivalent to the quotient shown here when x>0?

Yuki888 [10]

$\sqrt{22x^6}:\sqrt{11x^4}=\dfrac{\sqrt{22x^6}}{\sqrt{11x^4}}=\sqrt{\dfrac{22}{11}x^{6-4}}=\sqrt{2x^2}=\sqrt2\cdot\sqrt{x^2}=x\sqrt2\\\\Answer:\ \boxed{c.\ x\sqrt2}\\\\Used:\\\\\sqrt{\dfrac{a}{b}}=\dfrac{\sqrt{a}}{\sqrt{b}}\\\\\dfrac{a^n}{a^m}=a^{n-m}\\\\\sqrt{a^2}=a$