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3 years ago

2/3 x 9/20 = simplified

Mathematics

2 answers:

Sladkaya [172]3 years ago

8 0

2/3 * 9/20 = 18/60
= 9/30
= 3/10

please like rate five stars and mark as brainlist

Illusion [34]3 years ago

5 0

3/10, 2/3 x 9/20 = 18/60
18 divided by 3 is 6
and 60 divided by 6 is 10

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Setler [38]

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Julia made 108$ in 6 weeks what is her unit pay rate

julia-pushkina [17]

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4 years ago

Neveah has created the function f(x) =the quantity of 2x plus 4, divided by 3 to represent the growth of her hair, where x repre

dangina [55]

Given that:

The function to represent the growth of Neveah hair is

$f(x)=\dfrac{2x+4}{3}$

where, x represents the number of months since her last hair cut.

To find:

The inverse of function and time when her hair will have grown 6 inches.

Solution:

We have,

$f(x)=\dfrac{2x+4}{3}$

Put f(x)=y.

$y=\dfrac{2x+4}{3}$

Interchange x and y.

$x=\dfrac{2y+4}{3}$

Isolate y.

$3x=2y+4$

$3x-4=2y$

$\dfrac{3x-4}{2}=y$

Put $y=f^{-1}(x)$ .

$f^{-1}(x)=\dfrac{3x-4}{2}$

So, the required inverse function is $f^{-1}(x)=\dfrac{3x-4}{2}$ . It represents the number of months to grow her hair x inches.

She can predict when her hair will have grown 6 inches by putting x=6 in the inverse function.

Put x=6 in the inverse function.

$f^{-1}(6)=\dfrac{3(6)-4}{2}$

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3 0

4 years ago

<img src="https://tex.z-dn.net/?f=%5Csqrt%7Bx%5E%7B2%7D%20%2B4x%2B4" id="TexFormula1" title="\sqrt{x^{2} +4x+4" alt="\sqrt{x^{2}

Anna35 [415]

Answer:

Given,

$\sqrt{ {x}^{2} + 4x + 4} - 3 = 0 \\ = > \sqrt{ {x}^{2} + 4x + 4} = 3 \\ = > {( \sqrt{ {x}^{2} + 4x + 4} })^{2} = {3}^{2} \\ = > {x}^{2} + 4x + 4 = 9 \\ = > {x}^{2} + 4x + 4 - 9 = 0 \\ = > {x}^{2} + 4x - 5 = 0 \\ = > {x}^{2} + 5x - x - 5 = 0 \\ = > x(x + 5) - 1(x + 5) = 0 \\ = > (x - 1)(x + 5) = 0 \\ \\ \sf \: either \: x - 1 = 0 \: \: \: \: \\ = > x = 1 \: \: \\ \\ \sf \: or \\ x + 5 = 0 \\ = > x = - 5 \\ \\ \green{ \boxed{ \bf \: \: \: \: \: x = 1 \: \: or \: - 5}}$

But if we put the value of x = 5 then it doesn’t satisfy the equation.

So,

X = 1

5 0

3 years ago

Read 2 more answers

Can someone help me?It's urgent and thank you!

torisob [31]

Answer:

x = 4 is the answer

PLease give a brainliest

3 0

3 years ago