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3 years ago

3 (h−9) + 2h = h − 27 + 4h

Mathematics

2 answers:

Sergeu [11.5K]3 years ago

6 0

$\\ \sf\longmapsto 3(h-9)+2h=h-27+4h$

$\\ \sf\longmapsto 3h-27+2h=5h-27$

$\\ \sf\longmapsto 5h-27=5h-27$

$\\ \sf\longmapsto 5h-5h=-27+27$

$\\ \sf\longmapsto 0=0$

The expression has no solutions

kenny6666 [7]3 years ago

5 0

Answer:

h - any real number

Step-by-step explanation:

3 (h−9) + 2h = h − 27 + 4h
3h - 27 + 2h = 5h - 27
5h - 27 = 5h - 27
0 = 0

h = any number

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3 years ago

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Answer:

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We are given that Southwest Air had the best rate with 80 % of its flights arriving on time.

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So, X ~ Binom(n = 18, p = 0.20)

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= $\binom{18}{13}\times 0.20^{13} \times 0.80^{5}+ \binom{18}{14}\times 0.20^{14} \times 0.80^{4}+ \binom{18}{15}\times 0.20^{15} \times 0.80^{3}+ \binom{18}{16}\times 0.20^{16} \times 0.80^{2}+ \binom{18}{17}\times 0.20^{17} \times 0.80^{1}+ \binom{18}{18}\times 0.20^{18} \times 0.80^{0}$

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