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3 years ago

How can i solve this using distributive method ?

Mathematics

1 answer:

Liono4ka [1.6K]3 years ago

6 0

No idea ......... I’m just dumb

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Triangle ABC is rotated to form △A'B'C' .

Ludmilka [50]

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3 years ago

Read 2 more answers

Choose a number that will produce an irrational answer when added to 7/8. PLEASE HELP ITS DUE AT MIDNIGHT.

yawa3891 [41]

Answer:

√7

Step-by-step explanation:

2/5, 0.404040 and 0.286 are all rational as they all can be expressed in fraction form (0.4040 can be expressed as 40/99 and 0.286 as 286/1000 (can simplify but I didn't)) sqrt7 is the only irrational number.

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3 years ago

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Alex73 [517]

Answer:

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Step-by-step explanation:

4 0

3 years ago

The population standard deviation of the numbers 3, 8, 12, 17, and 25 is 7.563 correct to 3 decimal places. what happens if each

user100 [1]

Let's figure this out as though we have no idea what the answer would be.

Step One
Find the new five numbers.
3*3, 8*3, 12*3, 17*3, 25*3
9 , 24 , 36, 51, 75

Step 2
Find the average
(9 + 24 + 36 + 51 + 75)/5 = 195/5 = 39

Step 3
Subtract the individual numbers from the average
(39 - 9) = 30
(39 -24) = 15
(39 - 36) = 3
(39 - 51) = - 12
(39 - 75) = -36

Step 4
Square the results from Step 3
30^2 = 900
15^2 = 225
3^2 = 9
(-12)^2 = 144
(-36)^2 = 1296

Step 5
Take the average of the results from step 4
(900 + 225 + 9 + 144 + 1296)/5
2574 / 5 = 514.8

Step 6
Take the square root of the result from step 5
deviation = sqrt(514.8)
deviation = 22.689

Step seven
Compare the two standard deviations.
s2/s1 = 22.689 / 7.563 = 3

Conclusion
If you are given 1 set of numbers to find a population standard deviation and you multiply each member by a, then the result will be a * the standard population deviation of the first set of numbers.

Note
Your calculator will do this as well, but you have to know how to enter the data into your calculator. That requires that you follow the directions carefully.

7 0

3 years ago

Let the sample space beUpper S equals StartSet 1 comma 2 comma 3 comma 4 comma 5 comma 6 comma 7 comma 8 comma 9 comma 10 EndSet

AleksAgata [21]

Answer:

The probability would be 0.40

Step-by-step explanation:

Given,

The elements in set S are,

1, 2, 3, 4, 5, 6, 7, 9, 10,

Number of elements = 10,

Since, the outcomes are equally likely,

And, we know that,

$\text{Probability}=\frac{\text{Favourable outcomes}}{\text{Total outcomes}}$

So, the probability of getting 1, 2, 4, or 6 = $\frac{4}{10}=0.40$

Hence, the probability of the event E = {1, 2, 4, 6} is 0.40.

7 0

3 years ago