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3 years ago

What is a coplanar. You will earn good point.

1 answer:

4 0

Think about the prefix co-

cooperation
cosign
co-president

It's typically used to describe things that are shared or mutual. We say that two points are coplanar when they share the same plane.

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Which graph best represents the solution set of -3x<2Y-18

lora16 [44]

Answer:

Where are the graphs

Step-by-step explanation:

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3 years ago

Martina finished her chemistry assignment in 2/5 hours. Then she completed her math assignment in 1/4 hrs. What was the total am

JulsSmile [24]

$\text {Total time spent :}$

$\dfrac{2}{5} + \dfrac{1}{4}$

$= \dfrac{2 \times 4}{5 \times 4} + \dfrac{1 \times 5}{4 \times 5}$

$= \dfrac{8}{20} + \dfrac{5}{20}$

$= \dfrac{13}{20} \text { hour}$

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3 years ago

How do I find the arc of a circle?\

Anton [14]

Answer:

google

Step-by-step explanation:

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4 years ago

Read 2 more answers

Let c be the curve of intersection of the parabolic cylinder x2 = 2y, and the surface 3z = xy. find the exact length of c from t

Mandarinka [93]

Parameterize the intersection by setting $x(t)=t$ , so that

$x^2=2y\iff y=\dfrac{x^2}2\implies y(t)=\dfrac{t^2}2$
$3z=xy\iff z=\dfrac{xy}3\implies z(t)=\dfrac{t^3}6$

The length of the path $C$ is then given by the line integral along $C$ ,

$\displaystyle\int_C\mathrm dS$

where $\mathrm dS=\sqrt{\left(\dfrac{\mathrm dx}{\mathrm dt}\right)^2+\left(\dfrac{\mathrm dy}{\mathrm dt}\right)^2+\left(\dfrac{\mathrm dz}{\mathrm dt}\right)^2}\,\mathrm dt$ . We have

$\dfrac{\mathrm dx}{\mathrm dt}=1$
$\dfrac{\mathrm dy}{\mathrm dt}=t$
$\dfrac{\mathrm dz}{\mathrm dt}=\dfrac{t^2}2$

and so the line integral is

$\displaystyle\int_{t=0}^{t=2}\sqrt{1^2+t^2+\dfrac{t^4}4}\,\mathrm dt$

This result is fortuitous, since we can write

$1+t^2+\dfrac{t^4}4=\dfrac14(t^4+4t^2+4)=\dfrac{(t^2+2)^2}4=\left(\dfrac{t^2+2}2\right)^2$

and so the integral reduces to

$\displaystyle\int_{t=0}^{t=2}\frac{t^2+2}2\,\mathrm dt=\dfrac{10}3$

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3 years ago

What is the answer to this?

yawa3891 [41]

Answer:

Step-by-step explanation:

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3 years ago