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Recent questions tagged interval


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Solve the inequality \(\frac{7}{3}<\frac{p}{3}\)
1 answer 6 views
Solve the inequality \(\frac{7}{3}<\frac{p}{3}\)Solve the inequality \(\dfrac{7}{3}&lt;\dfrac{p}{3}\) ...
by Pieter SIlver Status
(18,309 points)
asked in Mathematics 1 day ago
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Determine \[ D_{x}\left(\frac{x^{3}+3 x^{2}+6 x+8}{x+2}\right) \]
1 answer 8 views
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Why are levels of measurement important in statistics?
1 answer 6 views
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In statistics what is the interval level of measurement?
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What are confidence interval?
1 answer 24 views
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Which of these is the smallest approximate sample size required to obtain the desired margin of error?
0 answers 44 views
Which of these is the smallest approximate sample size required to obtain the desired margin of error?Nadia wants to create a confidence interval to estimate the mean driving range for her company's new electric vehicle. She wants the margin of error t ...
by MathsGee Platinum
(104,008 points)
asked in Data Science & Statistics Sep 14, 2021
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Solve \(\frac{x}{2}+\frac{x}{3}=5\)
1 answer 35 views
Solve \(\frac{x}{2}+\frac{x}{3}=5\)Solve \(\dfrac{x}{2}+\dfrac{x}{3}=5\) ...
by MathsGee Platinum
(104,008 points)
asked in Mathematics Sep 13, 2021
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Using the chain rule, evaluate the derivative \(\frac{d}{d x} \sqrt{13 x^{2}-5 x+8}\)
1 answer 39 views
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Evaluate the derivative \(\frac{d}{d x} \sin x \cos x\)
1 answer 28 views
Evaluate the derivative \(\frac{d}{d x} \sin x \cos x\)Evaluate the derivative \(\frac{d}{d x} \sin x \cos x\) ...
by Siyavula Bronze Status
(7,026 points)
asked in Mathematics Sep 11, 2021
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Solve the given initial-value problem $$ \frac{\mathrm{d} y}{\mathrm{~d} x}=1-\frac{\sin (x+y)}{\sin (y) \cos (x)} ; \quad y(\pi / 4)=\pi / 4 $$

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Solve $\frac{d y}{d x}=2 x \cos ^{2}(y), \quad y(0)=\frac{\pi}{4}$
1 answer 38 views
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Solve $t^{3} \frac{d x}{d t}+3 t^{2} x=t, \quad x(2)=0$
1 answer 31 views
Solve $t^{3} \frac{d x}{d t}+3 t^{2} x=t, \quad x(2)=0$Solve $t^{3} \frac{d x}{d t}+3 t^{2} x=t, \quad x(2)=0$ ...
by Siyavula Bronze Status
(7,026 points)
asked in Mathematics Aug 27, 2021
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Prove that $\frac{d}{d x}(c f(x))=c f^{\prime}(x)$ using the definition of the derivative.
0 answers 31 views
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Suppose that $f$ and $g$ are differentiable at $x$. Show that $f-g$ is differentiable at $x$ using the two linearity properties.
0 answers 37 views
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What is linearity of a derivative?
1 answer 48 views
What is linearity of a derivative?What is linearity of a derivative? ...
by MathsGee Platinum
(104,008 points)
asked in Mathematics Aug 14, 2021
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What is the derivative of \(y = (\sin{x})^4\)?
1 answer 30 views
What is the derivative of \(y = (\sin{x})^4\)?What is the derivative of \(y = (\sin{x})^4\)? ...
by MathsGee Platinum
(104,008 points)
asked in Mathematics Aug 14, 2021
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How does the width of the confidence interval change with length?
1 answer 56 views
How does the width of the confidence interval change with length?How does the width of the confidence interval change with length? ...
by Pieter SIlver Status
(18,309 points)
asked in Data Science & Statistics Jul 23, 2021
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$h(t)=t^{2}+t .$ Find $h(-4)$
1 answer 62 views
$h(t)=t^{2}+t .$ Find $h(-4)$$h(t)=t^{2}+t .$ Find $h(-4)$ ...
by Pieter SIlver Status
(18,309 points)
asked in Mathematics Jul 5, 2021
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$g(t)=t^{2}-2 t .$ Find $g(-3)$
1 answer 53 views
$g(t)=t^{2}-2 t .$ Find $g(-3)$$g(t)=t^{2}-2 t .$ Find $g(-3)$ ...
by Pieter SIlver Status
(18,309 points)
asked in Mathematics Jul 5, 2021
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Find the angle in the third quadrant that has a reference angle $\frac{2 \pi}{7}$.
0 answers 46 views
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If $f(x)=x+\sqrt{x^{2}+1}+\frac{1}{x-\sqrt{x^{2}+1}}$, what is the value of $f\left(2016^{2017}\right) ?$
0 answers 48 views
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