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3 years ago

What would be the volume in millilitres of a blood sample of 2.15 microliters(ul)?

Mathematics

1 answer:

Llana [10]3 years ago

4 0

I’m sorry I don’t know the answers

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Inverse property of multiplication.

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2 years ago

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An English class attended a performance at the theater. The class took 25 students and 3 adults. Each student ticket, s, cost $3

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Step-by-step explanation:

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3 years ago

A torus is formed by rotating a circle of radius r about a line in the plane of the circle that is a distance R (> r) from th

jeyben [28]

Consider a circle with radius $r$ centered at some point $(R+r,0)$ on the $x$ -axis. This circle has equation

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$\displaystyle2\pi\int_R^{R+2r}2xy\,\mathrm dx$

where $2y=\sqrt{r^2-(x-(R+r))^2}-(-\sqrt{r^2-(x-(R+r))^2})=2\sqrt{r^2-(x-(R+r))^2}$ .

So the volume is

$\displaystyle4\pi\int_R^{R+2r}x\sqrt{r^2-(x-(R+r))^2}\,\mathrm dx$

Substitute

$x-(R+r)=r\sin t\implies\mathrm dx=r\cos t\,\mathrm dt$

and the integral becomes

$\displaystyle4\pi r^2\int_{-\pi/2}^{\pi/2}(R+r+r\sin t)\cos^2t\,\mathrm dt$

Notice that $\sin t\cos^2t$ is an odd function, so the integral over $\left[-\frac\pi2,\frac\pi2\right]$ is 0. This leaves us with

$\displaystyle4\pi r^2(R+r)\int_{-\pi/2}^{\pi/2}\cos^2t\,\mathrm dt$

Write

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so the volume is

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3 years ago

10. The perimeter of a triangle is 48'. The sides are in the ratio of 1 to 2 to 3. Find the three sides.

pentagon [3]

Answer:

Step-by-step explanation:

The sides are in the ratio 1:2:3, so the lengths of the sides are 1x, 2x, 3x.

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The lengths of the sides are 8', 16', 24'

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2 years ago

A recipe for biscuits calls for 1 cups

Svetllana [295]

Answer:

Step-by-step explanation:

1 1/2 × 3 = 4 1/2

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2 years ago

What would be the volume in millilitres of a blood sample of 2.15 microliters(ul)?​

What would be the volume in millilitres of a blood sample of 2.15 microliters(ul)?