My teacher says b is wrong

Mathematics

1 answer:

Alex Ar [27]4 years ago

7 0

It is wrong c is the correct answer I think

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Plis help me with the blank spaces !!!! They give me those 4 options as well in the second one

andreev551 [17]

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2 years ago

Need help with math problem give 5 stars and a good rating

slavikrds [6]

Answer:

B,C,D

Step-by-step explanation:

24ft =288 in A IS FALSE

2 miles = 10560 ft B IS TRUE

1/2 miles = 2640 ft C IS TRUE

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0.5 ft = 6 in E IS FALSE

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3 years ago

Find the equation of a tangent line at the point on a curve f(x) when x=e<br>f(x)=xln(x)+x

alex41 [277]

$\bf f(x)=xln(x)+x\implies \cfrac{dy}{dx}=\stackrel{product~rule}{\left[1\cdot ln(x)+x\cdot \cfrac{1}{x}\right]}+1
\\\\\\
\left. \cfrac{dy}{dx}=ln(x)+2 \right|_{x=e} \implies 1+2\implies 3
\\\\\\
\textit{when x=e, what is \underline{y}?}\qquad f(e)=eln(e)+e\implies f(e)=2e
\\\\\\
(e~~,~~2e)\qquad\qquad \stackrel{\textit{point-slope form}}{y-{{ y_1}}={{ m}}(x-{{ x_1}})}\implies y-2e=3(x-e)
\\\\\\
y-2e=3x-3e\implies y=3x-e$