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2 years ago

Can you anwser all my homework sentence

Mathematics

1 answer:

Setler [38]2 years ago

5 0

4. 64 π
5. 100 π
6. 49 π

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james has a job with a current salary of $42,000. he wants to earn a collage degree that will take him 2 years to complete and i

Alex777 [14]

It will take him ten years.

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2 years ago

Read 2 more answers

According to the Sleep Foundation, the average night's sleep is 6.8 hours (Fortune, March 20, 2006). Assume the standard deviati

vivado [14]

Let $X$ be the random variable for the time a given person from the population spends sleeping. With $X\sim\mathcal N(6.8,0.4^2)$ we have

$P(X>8)=P\left(\dfrac{X-6.8}{0.4}>\dfrac{8-6.8}{0.4}\right)=P(Z>3)\approx0.0013$

where $Z\sim\mathcal N(0,1^2)$ .

$P(X\le6)=P\left(\dfrac{X-6.8}{0.4}\le\dfrac{6-6.8}{0.4}\right)=P(Z\le-2)\approx0.0228$

$P(7$

Rounded to the nearest whole number, that comes out to about 31%.

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2 years ago

A large lemonade at a party holds 15 liters of lemonade there are approximately 3.8liters in 1 gallon abt how many gallons of le

Llana [10]

If you have a container that holds 15 liters, and each gallon is 3.8 liters divide the two to get 3.9 gallons, which would then be rounded to 4 gallons of lemonade. Hope this helps!

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2 years ago

What is the equation of the parabola with focus (3,0) and directrix x= -3?

larisa [96]

Check the picture below, so the parabola looks more or less like so, with a "p" distance of 3 and the vertex at the origin, keeping in mind the vertex is half-way between the focus point and the directrix.

$\textit{horizontal parabola vertex form with focus point distance} \\\\ 4p(x- h)=(y- k)^2 \qquad \begin{cases} \stackrel{vertex}{(h,k)}\qquad \stackrel{focus~point}{(h+p,k)}\qquad \stackrel{directrix}{x=h-p}\\\\ p=\textit{distance from vertex to }\\ \qquad \textit{ focus or directrix}\\\\ \stackrel{"p"~is~negative}{op ens~\supset}\qquad \stackrel{"p"~is~positive}{op ens~\subset} \end{cases} \\\\[-0.35em] ~\dotfill$

$\begin{cases} h=0\\ k=0\\ p=3 \end{cases}\implies 4(3)(x-0)~~ = ~~(y-0)^2\implies 12x=y^2\implies x=\cfrac{1}{12}y^2$

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1 year ago

What are the possible rational zeros of f(x) = x4 + 6x3 − 3x2 + 17x − 15? (2 points)

Alex73 [517]

Solve for x. The multiplicity of a root is the number of times the root appears.

x= -6.847415 (multiplicity of 1)
x= 0.793705 (multiplicity of 1)

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2 years ago