Answer:
Step-by-step explanation: for the mean, add up the list of numbers and divide by how many numbers there are, in this case its 7
Answer:
1) negative Slope: ( -4, 3 )
2) ( 0, -5 )
3) y= -4/3x - 5
Step-by-step explanation:
ANSWER: 32 five-dollar bills
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EXPLANATION:
Let x be number of $5 bills
Let y be number of $10 bills
Since we have total of 38 bills, we must have the sum of x and y be 38
x + y = 38 (I)
Since the total amount deposited is $220, we must have the sum of 5x and 10y be 220 (x and y are just the "number of" their respective bills, so we multiply them by their value to get the total value):
5x + 10y = 220 (II)
System of equations:
Divide both sides of equation (II) by 5 so our numbers become smaller
Rearrange (I) to solve for y so that we can substitute into (II)
Substituting this into equation (II) for the y:
We have 32 five-dollar bills
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If we want to finish off the question, use y = 38 - x to figure out number of $10 bills
32 five-dollar bills and 6 ten-dollar bills
Answer:
Radians
Step-by-step explanation:
If you use degrees, you have to put an annoying 2π/360 every time you try to simplify. This is why in calculus, we work with radians for all functions of derivatives, since its much easier to work with, and you dont have to write that annoying constant.
A chord is any line that touches two ends on a circle. Line segment AC is a chord.
A tangent is a line that only touches one point on the circle. The purple line on top of the circle is a tangent line.
A radius is a line from the center to any point on the circle. The red line is a radius.
A secant is like a chord, except it is a line and keeps going. The cyan (sky blue) line is a secant line.
A point of tangency is the point that the tangent line touches. The yellow point on the purple line is the point of tangency.
A diameter is a straight line that crosses the center and two points on the circle. You can say it’s two radii put together. Line segment BD (green) is a diameter.
Hope this helps!
