Answer:
A) , B) , C) for
Step-by-step explanation:
A) Let be and , the latter expression is a function in implicit form and we need to turn it into its explicit form, where is the independent variable.
B) If we know that . then is:
C) If we know that , then we solve for :
Well, as you know, the X axis runs horizontally (just think horizon, and you got it)
And the Y axis runs vertically, up and down.
A Pre-image over the Y axis means it would have to be on the left or the right of the chart, not on the top or bottom.
This means both the first choice AND the third choice shown are out.
The second choice is correct
~Hope this helps!
Answer:
1.5 hours
Step-by-step explanation:
Well, yeah, sometimes we have that weird feeling that our guts know the answer but we don't know why. Let me show you how I got mine.
Gravitational force obeys an inverse square law - as in the gravitational force depends on the distance as<span>F = <span><span>GMm/</span><span>r</span></span></span>²
Small m is the mass of astronaut, M the planet, etc. equate the two forces to have the astronaut in equilibrium. G, m cancel, then arrange to get the Mass ratio:<span><span><span><span>Mx / </span><span>My</span></span> =<span><span>140</span></span></span></span>²/581²