There are 30 boys and 35 girls that try out for a chorus. The choir director will select 10 girls and 10 boys from the children
1 answer:
Answer:
5.52 * 10^15 ways
Step-by-step explanation:
Given that there are 30 boys and 35 girls. The director will select 10 girls and 10 boys,
We use combinations when the question is on the number of ways of selecting objects and the order of selection is not to be counted. Therefore, for this selection, the number of ways
= ³⁰C₁₀ × ³⁵C₁₀
=
=
= 30045015 * 183,579,396
= 5.51565 * 10^15
≈ 5.52 * 10^15 ways
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Part A
The graph is shown below as an attached image.
The diagram shows a straight line that goes through the two points (0,-3) and (1, -5)
I'm using GeoGebra to graph the line.
side note: (0, -3) is the y intercept which is where the graph crosses the y axis.
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Part B
Answer is choice 2
The graph can be written in the form y = mx+b, so it is linear
In this case, m = -2 is the slope and b = -3 is the y intercept
We can write the slope as m = -2 = -2/1. This tells us that we can move down 2 units and then over to the right 1 units to get from point to point. This process of "down 2, over to the right 1" happens when moving from point A to point B in the diagram below.
