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2 years ago

HELP ASAP PLEASE! GIVING AWAY 30 POINTS AND BRAINLIEST!

Mathematics

2 answers:

Papessa [141]2 years ago

7 0

Answer:

DB!

Step-by-step explanation:

Question a: 3+3+2+2 = 10 dinners

Question b: 15-30 and 30-45, because most people choose that range.

Hope I helped!

mezya [45]2 years ago

7 0

Answer:

a) 10 b) 2-3 dollars

Step-by-step explanation:

a) 3+3+2+2

b) (2+2+3+3)/2 equal 2.5 mean, range between them is 2 to 3

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What is the simplified form of the following expression? Assume

HACTEHA [7]

Answer:

yes a

Step-by-step explanation:

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3 years ago

Write the number 3.7 as a mixed number let x

puteri [66]

3.7/1 = 3.7

multiply it through to make it a whole number.
x 10

37
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10

then see how mant times 10 goes into it.
3 times. so 3 is your whole number. 7/10 remains.
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2 years ago

X + 3 = -1 Prove x<br> Need help I need to see work. Don’t understand this problem.

raketka [301]

Answer:

x=-4

Step-by-step explanation:

X needs to be a number that when 3 is added to it, becomes -1. So, adding 3 to -4 gives you -1, therefore, x=-4. Hope this helped!

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2 years ago

Software to detect fraud in consumer phone cards tracks the number of metropolitan areas where calls originate each day. It is f

pashok25 [27]

Answer:

0.999987

Step-by-step explanation:

Given that

The user is a legitimate one = E₁

The user is a fraudulent one = E₂

The same user originates calls from two metropolitan areas = A

Use Bay's Theorem to solve the problem

P(E₁) = 0.0131% = 0.000131

P(E₂) = 1 - P(E₁) = 0.999869

P(A/E₁) = 3% = 0.03

P(A/E₂) = 30% = 0.3

Given a randomly chosen user originates calls from two or more metropolitan, The probability that the user is fraudulent user is :

$P(E_2/A)=\frac{P(E_2)\times P(A/E_2)}{P(E_1)\times P(A/E_1)+P(E_2)\times P(A/E_2)}$

$=\frac{(0.999869)(0.3)}{(0.000131)(0.03)+(0.999869)(0.3)}$

$\frac{0.2999607}{0.00000393+0.2999607}$

$\frac{0.2999607}{0.29996463}$

= 0.999986898 ≈ 0.999987

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2 years ago

Solve for x. What is the solution to the system of equations?<br> ( <br> , <br> )

labwork [276]

(3,-2) hope this helps Yall

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2 years ago