3 years ago

Choose the correct correspondence.

Mathematics

1 answer:

Alex3 years ago

4 0

Answer:

Step-by-step explanation:

idk I think its correct

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A particle starts at the point P=(−5,−1,3) when t=0 and moves along a straight line toward Q=(−6,−6,8) at a speed of 9 cm/sec. L

navik [9.2K]

Answer:

Step-by-step explanation:

Given

Particle moves from $P\ (-5,-1,3)\ to\ Q\ (-6,-6,8)$

speed of particle is $v=9\ cm/s$

Unit vector in the direction of vector $\vec{PQ}$ is given by

$\hat{n}=\frac{\vec{Q}-\vec{P}}{|\vec{Q}-\vec{P}|}$

$\hat{n}=\frac{-}{\sqrt{(-1)^2+(-5)^2+(5)^2}}$

$\hat{n}=\frac{}{\sqrt{1+25+25}}$

Now Position of Particle at any time is given by

$\vec{r(t)}=velocity\cdot time\cdot direction$

$\vec{r(t)}=9\cdot t\cdot \frac{}{\sqrt{1+25+25}}$

Parametric vector equation is given by

$x=\frac{-9t}{\sqrt{51}}$

$y=\frac{-45t}{\sqrt{51}}$

$z=\frac{45t}{\sqrt{51}}$

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3 years ago

Please help mee :’( I will give brainliest :-)

MA_775_DIABLO [31]

9 should be the correct answer please give brainlests

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3 years ago

Solve the following system of equations. Enter the x-coordinate of the solution. Round your answer to the nearest tenth. 5x+2y=2

fenix001 [56]

X=63/17 0r 3.7 rjhqhg ccfnmfbb c

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3 years ago

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At the school carnival 14 out of 56 tickets sold where early admission tickets. What percentage of the ticket or early admission

cestrela7 [59]

Step-by-step explanation:

14/56×100=25%

14 early admission tickets/total tickets×100= percentage of early admission tickets

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3 years ago

You have a standard deck of cards the deck has 52 total cards and contains 4 suits: hearts, clubs, diamonds, and spades. Each su

Pie

Answer:

A. The experimental probability of choosing a heart is 1/26 greater than the theoretical probability of choosing a heart.

Step-by-step explanation:

I got this question right on Edge.

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2 years ago

Choose the correct correspondence.​

Choose the correct correspondence.