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saul85 [17]
3 years ago
8

PLEASE HELP!!! WORTH 10 POINTS:)

Mathematics
1 answer:
s2008m [1.1K]3 years ago
5 0
The\ slope-intercept\ form:\\\\y=mx+b\\\\m-the\ slope;\ b-the\ y-intercept\ form

the\ slope:\\\\m=\frac{5\ miles}{1.4\ hours}=\frac{50}{14}\ mph=\frac{25}{7}\ mph\\\\so,\ therefore:\\\\\boxed{y=\frac{25}{7}x}
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Find p[b] in each case: (a) events a and b are a partition and p[a] = 3p[b]. (b) for events a and b, p[a ∪ b] = p[a] and p[a ∩ b
nirvana33 [79]

Answer:

Case(a): p[b]=\frac{1}{3}p[a]

Case(b): p[b]=0

Case(c):  p[b]=\frac{1}{2}p[a\cap b]

Step-by-step explanation:

Given

(a) events a and b are a partition and p[a] = 3p[b].

(b) for events a and b, p[a ∪ b] = p[a] and p[a ∩ b] = 0.

(c) for events a and b, p[a ∪ b] = p[a]− p[b].

we have to find the p[b] in each case:

Case (a): events a and b are a partition and p[a] = 3p[b].

gives p[b]=\frac{1}{3}p[a]

Case (b):  for events a and b, p[a ∪ b] = p[a] and p[a ∩ b] = 0.

p[a\cup b]=p[a] ⇒p[a]+p[b]-p[a\cap b]=p(a) ⇒ p[b]=0  ∵  p[a ∩ b] = 0.

Case(3):  for events a and b, p[a ∪ b] = p[a]− p[b].

p[a ∪ b] = p[a]− p[b]

⇒ p[a]+p[b]-p[a\cap b]=p[a]-p[b]

⇒ 2p[b]=p[a\cap b]

⇒  p[b]=\frac{1}{2}p[a\cap b]

4 0
3 years ago
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Answer:

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Step-by-step explanation:

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y = 2(x + 1) + 3 ← substitute x = - 1

y = 2(- 1 + 1) + 3 = (2 × 0) + 3 = 0 + 3 = 3

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Answer:

It is <u><em>not </em></u>stay the same or get larger

Step-by-step explanation:

I'm sorry all i can do is eliminate options. I took the test twice and got it wrong both times. my next guess is that its impossible to tell but its a 50/'50 chance. I hope eliminating at least helps :(

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