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just olya [345]
3 years ago
13

Write a rule to describe the function shown.

Mathematics
1 answer:
I am Lyosha [343]3 years ago
6 0

Answer:

y = -3x  

Step-by-step explanation:

(a) Slope

y = mx + b

Choose points (-3, 9) and (3, -9)

m = (-9 - 9)/(3 – (-3))

m = -18/(3 + 3)

m = -18/6

m = -3

=====

(b) y-intercept

y = mx +b

Choose point (0,0).

0 = 0 + b

b = 0

=====

(c) Equation of line

y = mx + b

y = -3x

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A container holds 9 red markers, 13 blue markers, and 17 green markers. You will randomly select two markers without replacement
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Answer:

a.

                         R-------8/38--------RR

R------9/39--------B-------13/38-------RB

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                          R-------9/38--------BR

B--------13/39------B-------12/38-------BB

                           G-------17/38-------BG

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G---------17/39-------B------13/38-------GB

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b).

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RB=9/39 × 13/38=3/38

BR= 13/39 × 9/38 =3/38

BG= 13/39 × 17/38=17/114

GB= 17/39 × 13/38=17/114

=3/38 +3/38+17/114+ 17/114 =26/57

  • Probability of selecting 2 red markers= RR = 9/39 × 8/38 =12/247

  • Probability of selecting a green marker and then a red marker= GR= 17/39×9/38 =51/494

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\text{The scientific notation:}\\\\a\cdot10^k\ \text{where}\ 1\leq a

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