We know the mass and the volume, using which we can find the density.
Density = Mass/Volume
So,
Density = 16950/1.5 = 11300 kg/m³
So the coins of made of Lead as the density of coins is equal to the density of Lead
So correct answer is option C
I think it’s true because its moving and and the energy is than converted into electric energy we use
Answer:
b=5
Step-by-step explanation:
10 = -2b + 4b
Combine like terms
10 = 2b
Divide each side by 2
10/2 = 2b/2
5 = b
<h3>
Answer: f(x) = (-1/2)x+1, choice B</h3>
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Explanation:
The diagonal line passes through 1 on the vertical y axis. So the y intercept is b = 1. This means the location of the y intercept is (0,1).
Start at (0,1) and move down 1 and to the right 2 to arrive at (2,0). This is another point on the diagonal line. The motion of "down 1 and right 2" is effectively the slope
slope = rise/run = -1/2
rise = -1, run = 2
The rise being negative means we have gone downhill as we move to the right.
With m = -1/2 as the slope and b = 1 as the y intercept, we go from y = mx+b to y = (-1/2)x+1
The last thing to do is replace y with f(x) to get f(x) = (-1/2)x+1 as the final answer.
A point in the form of (0, number) is the y - intercept. That's because there is movement in the x -direction and the point is plotted on the y -axis. Our number in the ordered pair is the y-intercept - in this case, 10.
Slope intercept form is y = mx + b where m is the slope and b is the y-intercept. We are told the slope is 9 and we found the y-intercept, 10. 9 goes in for m, 10 goes in for b.
Thus the line (in slope intercept form) is y = 9x + 10.
