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3 years ago

1. 8 x (-7)

Mathematics

1 answer:

iogann1982 [59]3 years ago

5 0

Is x a variable in these problems or is x acting as a multiplication sign?

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Find the equation in the line shown please<br> Is for today

Olegator [25]

Step-by-step explanation:

i hope i have been useful buddy.

good luck ♥️♥️♥️♥️♥️.

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3 years ago

What is the do.ain and range of (1,9), (2,7), (5,4), (7,12) (3,9)

inysia [295]

Domain: {1,2,3,5,7}
Range: {4,9,7,12}

6 0

3 years 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

strojnjashka [21]

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

5 0

3 years ago

What is (1. 6x 7. 3) (–0. 6x 2) – (7. 8 – 3. 4x), simplified? (1. 6x 7. 3) (–0. 6x 2) – (7. 8 – 3. 4x) 1. 6x 7. 3 – 0. 6x 2 – 7.

bekas [8.4K]

The simplified form of the equation is 4.4x + 1.5.

Given

Equation; (1.6x + 7.3) + (–0.6x + 2) – (7.8 – 3.4x)

<h3>Addition</h3>

The addition is the process of adding things together.

To simplify the equation follow all the steps given below.

First, open the brackets combine like terms, and simplify.

Then,

The equation in simplified form is;

$\rm (1.6x + 7.3) + (-0.6x + 2) - (7.8 -3.4x)\\\\1.6x+7.3-0.6x+2-7.8+3.4x\\\\1.6x-0.6+3.4x+7.3-7.8\\\\4.4x+1.5$

Hence, the simplified form of the equation is 4.4x + 1.5.

To know more about addition click the link given below.

brainly.com/question/15892196

7 0

2 years ago

Solve for p.<br><br> 8p-4p=2p+6

seraphim [82]

Answer:

p=3

Step-by-step explanation:

8p-4p-2p=6

2p=6

p=3

plz make me braunliest

4 0

2 years ago

Read 2 more answers