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3 years ago

9.173 what is the value of 9?

Mathematics

2 answers:

SashulF [63]3 years ago

8 0

Answer:

Step-by-step explanation:

omeli [17]3 years ago

3 0

Answer:

the value of 9 is ones

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When a number is decreased by 10% of itself the result is 171. What is the number?

abruzzese [7]

$100\%-10\%=90\%\\\\ \begin{array}{ccc}90\%&-&171\\\\100\%&-&x\end{array}\\\\cross\ multiply\\\\90x=171\times100\\\\90x=17100\ \ \ |divide\ both\ sides\ by\ 90\\\\\boxed{x=190}\leftarrow solution$

4 0

3 years ago

Finding an Equation of a tangent Line in Exercise, find an equation of the tangent line to the graph of the function at the give

Vlad1618 [11]

Answer:

$y=-\dfrac{x}{e^{2}}+\dfrac{2}{e^{2}}\\$

this is the equation of the tangent line to the curve from the point (1, 1/e^2)

Step-by-step explanation:

$y=\dfrac{x}{e^{2x}}$

to find the tangent line we need to find the curve's derivative.

we'll be using the quotient formula: $d\left(\dfrac{u}{v}\right) = \dfrac{uv'-vu'}{v^2}$ , here $u = x\quad , \quad v = e^{2x}$

$\dfrac{dy}{dx}=\dfrac{e^{2x}(1)-x(2e^{2x})}{(e^{2x})^2}$

$\dfrac{dy}{dx}=\dfrac{e^{2x}-2xe^{2x}}{(e^{4x})}$

$\dfrac{dy}{dx}=\dfrac{\left(1-2x\right)}{ e^{2 x}}$

This is the equation of the slope of the curve. By finding the slope of the curve at (1, 1/e^2) we'll also be finding the slope of the tangent to the curve at (1, 1/e^2).

the x-coordinate is 1, so using x =1

$\dfrac{dy}{dx}=\dfrac{\left(1-2(1)\right)}{ e^{2(1)}}\\\dfrac{dy}{dx}=\dfrac{-1}{e^{2}}$

this is the slope of the tangent.

now to find the equation of the line:

$(y-y_1)=m(x-x_1)$

here, m is the slope.

$(y-\dfrac{1}{e^{2}})=-\dfrac{1}{e^{2}}(x-1)\\y=-\dfrac{x}{e^{2}}+\dfrac{1}{e^{2}}+\dfrac{1}{e^{2}}\\$

$y=-\dfrac{x}{e^{2}}+\dfrac{2}{e^{2}}\\$

this is the equation of the tangent line to the curve from the point (1, 1/e^2)

3 0

3 years ago

Sarah Simpson is insured for bodily injury in the amount of 10/20. She is at fault in an accident in which Fred Vail is injured.

katen-ka-za [31]

Okay, so the insurance cover 10/20 which means 50/100 (50%).
So to find 50%, you just divide your price by 2.
Arthur : $16,000 / 2 = $8,000.
Fred : $8,000 / 2 = $4,000.
Now, you have to add the two amount to find the total amount that the insurance will pay.
Total : $4,000 + $8,000 = $12,000.
Hope I helped you !

4 0

3 years ago

Read 2 more answers

I'm not sure what is 89•86/2

Komok [63]

the answer is 3827

both multiplied and simplified.

7 0

3 years ago

Read 2 more answers

{ (1, 1) , (19, 88) , (-3, -5) , (1/2 , -3) , (100, 101) , (200, 9) , (0, -33) }

yuradex [85]