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1 year ago

Plz help ASAP, tysm! Plz show ur work!

Mathematics

2 answers:

insens350 [35]1 year ago

7 0

Answer:

Step-by-step explanation:

Given 3x - 2y = 0, which can be re-written as 3x = 2y, find the intercepts.

y-intercept: let x = 0 and find y. y = 0. So the y-intercept is (0, 0).

x-intercept: let y = 0 and find x. The x-intercept is (0, 0) also.

Read more on Brainly.com - brainly.com/question/12681291#readmore

anygoal [31]1 year ago

4 0

Answer:

Step-by-step explanation:

Given 3x - 2y = 0, which can be re-written as 3x = 2y, find the intercepts.

y-intercept: let x = 0 and find y. y = 0. So the y-intercept is (0, 0).

x-intercept: let y = 0 and find x. The x-intercept is (0, 0) also.

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<span>Let x = # of rides

Plan A: 10 + 3x

Plan B: 20 + x

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if x > 5 then plan B is the best buy

Prove:
x = 6 (rides)

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plan B: 20 + x = 20 + 6 = $26

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1 year ago

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2 years ago

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Sinister Stan stole 3 3/4oz of slime from messy Molly, but His evil plans required 6 3/8oz of slime. He stole another 2 3/5 oz o

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Answer:

Sinister Stan needs 1/40 oz more slime for his evil plan.

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1 year ago

The album The Best of Radiohead, by Radiohead, has a list price of $13.83, and the album The King of Limbs, by Radiohead, has a

neonofarm [45]

Answer:

206 albums The King of Limbs and 34 albums The Best of Radiohead sold

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Let x be the no. of The album The Best of Radiohead sold .

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So, number of albums The King of Limbs = 240 -x

Cost of 1 album The Best of Radiohead by Radiohead is $13.83

Cost of x album The Best of Radiohead by Radiohead = 13.83x

Cost of 1 album The King of Limbs, by Radiohead= $7.83

Cost of (240-x) album The King of Limbs, by Radiohead=7.83(240-x)

The total cost revenue of both albums in that week is 2083.20

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13.83x+1879.2-7.83x=2083.20

13.83x-7.83x=2083.20-1879.2

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1 year ago

A lake contains 4 distinct types of fish. Suppose that each fish caught is equally likely to be any one of these types. Let Y de

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Answer:

a) P(μ-k*σ≤ Y ≤ μ+k*σ ) ≥ 0.90

a= μ-3.16*σ , b= μ+3.16*σ

b) P(Y≥ μ+3*σ ) ≥ 0.90

b= μ+3*σ

Step-by-step explanation:

from Chebyshev's inequality for Y

P(| Y - μ|≤ k*σ ) ≥ 1-1/k²

where

Y = the number of fish that need be caught to obtain at least one of each type

μ = expected value of Y

σ = standard deviation of Y

P(| Y - μ|≤ k*σ ) = probability that Y is within k standard deviations from the mean

k= parameter

thus for

P(| Y - μ|≤ k*σ ) ≥ 1-1/k²

P{a≤Y≤b} ≥ 0.90 → 1-1/k² = 0.90 → k = 3.16

then

P(μ-k*σ≤ Y ≤ μ+k*σ ) ≥ 0.90

using one-sided Chebyshev inequality (Cantelli's inequality)

P(Y- μ≥ λ) ≥ 1- σ²/(σ²+λ²)

P{Y≥b} ≥ 0.90 → 1- σ²/(σ²+λ²)= 1- 1/(1+(λ/σ)²)=0.90 → 3= λ/σ → λ= 3*σ

then for

P(Y≥ μ+3*σ ) ≥ 0.90

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