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4 years ago

What is the transformation (x,y)->(x,-y)

Mathematics

1 answer:

Lelechka [254]4 years ago

4 0

Answer:

<h2>It's a reflection across the x-axis.</h2>

Step-by-step explanation:

(x, y) → (x, -y)

It's a reflection across the x-axis.

<em>The reflection of the point (x,y) across the x-axis is the point (x,-y).</em>

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42×4/7 how do this problem

vlada-n [284]

Convert to:

42 4 168
---- x ---- = ------
1 7 7

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3 years ago

A projectile is shot from a cannon. The fixed parameters are the acceleration of gravity, g=9.8 m/sec2, and the muzzle veloci

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3 years ago

A police cruiser is traveling at 20.0 m/s when the officer spies a speeder. The cruiser accelerates at 3.0 m/s^2 for 5.0 seconds

Tema [17]

For the first 5.0 seconds, the cruiser covers a distance of

$\left(20.0\dfrac{\rm m}{\rm s}\right)(5.0\,\mathrm s)+\dfrac12\left(3.0\dfrac{\rm m}{\mathrm s^2}\right)(5.0\,\mathrm s)^2=137.5\,\mathrm m$

At this point, the cruiser will have achieved a velocity of

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The cruiser will take

$\left(35\dfrac{\rm m}{\rm s}\right)-\left(5.0\dfrac{\rm m}{\mathrm s^2}\right)t=0\implies t=7.0\,\mathrm s$

to come to a stop as it decelerates. It will have covered a total distance of

$(137.5\,\mathrm m)+\left(35\dfrac{\rm m}{\rm s}\right)(7.0\,\mathrm s)+\dfrac12\left(-5.0\dfrac{\rm m}{\mathrm s^2}\right)(7.0\,\mathrm s)^2=\boxed{260\,\mathrm m}$

8 0

3 years ago

Emir is standing in a treehouse and looking down at a swingset in the yard next door. The angle of depression from Emir's eyelin

erma4kov [3.2K]

Answer:

15 feets

Step-by-step explanation:

From. Trigonometric relation :

Tanθ = opposite / Adjacent

Tan 33.69 = 10 / x

0.6666649 = 10 / x

x = 10 / 0.6666649

= 15 feets

Hence, base of tree to swingset is 15 feets

3 0

3 years ago

Read 2 more answers

Work out m and c for the line:<br> y = 2x

zepelin [54]

M is equal to 2
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3 years ago