Students conducted the following experiment 24 times. They drew one card from a box with some red cards and some black cards, pu
t the card back in the box, and then drew another card. The results are shown in the table below.
What is the experimental probability of drawing 1 red card and 1 black card?
A.
3 over 8
B.
3 over 5
C.
5 over 8
D.
3 over 4
What is the experimental probability of drawing 1 red card and 1 black card?
A.
3 over 8
B.
3 over 5
C.
5 over 8
D.
3 over 4
1 answer:
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Answer: 16) y=-0.5x+3 and 17) y=2x-3
Step-by-step explanation:
16: The slope-intercept form of a line is y=mx+b, where m is the slope, and b is the y-value at the y-intercept.
Since y=3 at x=0, the y-intercept is (0,3), and b=3.
Slope= where (
) and (
) are two points on the line. Choose (0,3) and (2,2):
Slope==-0.5
Plug m=-0.5 and b=3 into y=mx+b:
y=-0.5x+3
17: The slope-intercept form of a line is y=mx+b, where m is the slope, and b is the y-value at the y-intercept.
Because y=-3 at x=0, the y-intercept is (0,-3), and b=-3.
Slope= where (
) and (
) are two points on the line. Choose (0,-3) and (1,-1):
Slope==
=2
Plug m=2 and b=-3 into y=mx+b:
y=2x-3