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Assoli18 [71]
3 years ago
14

PLZ HELP QUIK PLZ HELP PLZ

Mathematics
1 answer:
aleksandrvk [35]3 years ago
7 0

Answer:

(x,y) = (-2,7)

Step-by-step explanation:

7x+2y=0

9x+4y=10

y = -9x/4 + 5/2

7x+2 (-9x/4 + 5/2) = 0

5x/2 = -5

5x = -10

x = -2

use x and substitute to get y

y = -(9/4) (-2) +5/2 = 7

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GarryVolchara [31]

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i think that this is wrong and your asswer 56b x56i +78 t

7 0
3 years ago
What is the result when the number 17 is decreased by 4.9%?
Fiesta28 [93]

Answer:

16.167

Step-by-step explanation:

17×0.049= 0.833

17-0.833= 16.167

4 0
4 years ago
Read 2 more answers
Using π = 3.14, find the area of a circle with a radius of 12. Round your answer to the nearest hundredth.
VMariaS [17]

Answer:

no idea

Step-by-step explanation:

8 0
3 years ago
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Airline Fatalities One study showed that in a certain year, airline fatalities occur at the rate of 0.011 deaths per 100 million
Lelu [443]

Answer:

P(X = 0) = 0.9891

Step-by-step explanation:

Given

\lambda = 0.011

Required [This completes the question]

The probability of exactly 0 deaths

This probability follows a Poisson distribution, and it is given by:

P(X = x) = \frac{e^{-\lambda}\lambda^{x}}{x!}

For 0 deaths;

x = 0

So, the expression becomes

P(X = 0) = \frac{e^{-\lambda}\lambda^{0}}{0!}

P(X = 0) = \frac{e^{-\lambda}\lambda^{0}}{1}

P(X = 0) = \frac{e^{-\lambda}*1}{1}

P(X = 0) = e^{-\lambda}

Substitute 0.011 for \lambda

P(X = 0) = e^{-0.011}

P(X = 0) = 0.9891

<em>The probability of having exactly death is 0.9891</em>

8 0
3 years ago
Fractions and properties of addition
Softa [21]

Answer:

Associative Property

Commutative Property

Distributive Property

Identity Property

Step-by-step EXPLANATION

ASSOCIATIVE PROPERTY

In this property, irrespective of the regrouping between a number and the addent within a bracket, the sum, value does not change.

For example:

(A + B) + C = A + ( B + C)

COMMUTATIVE PROPERTY

In commutative Property, you will always get thesame results after changing the order or position of the addent.

For example:

A + B = A + B

Also,

A + B = B + A

DISTRIBUTIVE PROPERTY

Basically here, please note that, the sum (addition) of two numbers times a Third one is always equal to the sum of these numbers times the third one.

For Example:

A x (B + C) = AB + AC

IDENTITY PROPERTY

This property is the easiest of all, it simply says that "Add a number to Zero must always be that number".

For example:

A + 0 = A

B + 0 = B

C + 0 = C

HOPE THIS HELPED!

3 0
3 years ago
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