The answer is 129 because the opposite corners of a quadrilateral has to equal 180°
1) Never heard of someone referring to the Law of Levers before, must be showing my age. A system as you describe is at equilibrium when the net torque is equal to zero. Since torque is Fr=mgr so for this system we have a sum of:
27g*10+30g*x=0 The sum must be zero to be at equilibrium, dividing both sides by g you have:
270+30x=0
270=-30x
x=-9
The negative just indicates that the magnitude of 9 is on the opposite side of the fulcrum, so x=9ft in magnitude.
2) Inverse variation is of the form y=k/x, in this case we are given a point so we can solve for the constant, k, of variation...
y=k/x, and we are given y=-12 when x=5 so
-12=k/5
k=-60 so the equation is:
y=-60/x which can be expressed as
xy=-60
Answer:
Step-by-step explanation: The brains are very similar insofar that they function in almost the same way when it comes to controlling physical aspects of our existence. Our brains regulate our organs and our body parts just like a sheep's brain.
Answer:
600+0+9+0.2
Step-by-step explanation:
Answer:
A and B only
Step-by-step explanation:
The table has x=10 that maps on to y=5 and y=-5.
This disqualifies the table for being a function.
The ordered pairs has no x-value repeating.
The graph of y=x² +10 is a vertical parabola that passes the vertical line test, hence it is also a function.
For a relation to be a function, no x-value must repeat; this means its graph must pass the vertical line test