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Svetach [21]
3 years ago
15

*30 POINTS*

Mathematics
1 answer:
shepuryov [24]3 years ago
5 0

Answer:

Step 4

Step-by-step explanation:

Step 4 is incorrect because when you add the number from the right side, -34, you make it a positive coming to the left side, -17, which stays the same. so 34+-17, will give you 17.

This will make Step 4: Addition property of equality: -17x=40

Therefore Step 5 is also incorrect, and should look like: Step 5: Division Property of Equality: x= 40/-17

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Estimating π. Using random numbers can accomplish many tasks. For example, it is possible to estimate π using Monte Carlo method
velikii [3]

Answer:

Estimations of π/4:

100 points: 0.75

1,000 points: 0.768

10,000 points: 0.7819

Step-by-step explanation:

To get an estimate of π/4 you can place random points in the square [0, 1] × [0, 1] and estimate it as the ratio of the points that landed inside the unit circle to the total number of points (because the ratio of the area of the circle to the area of the square is π/4).

We do it for 100 xy points and we get:

Point inside the circle area = 75

Estimation of π/4 = 0.75

\pi/4\approx=\dfrac{\text{points inside circle area}}{\text{total points}}=\dfrac{75}{100}=0.75

We do it for 1,000 xy points and we get:

Point inside the circle area = 768

Estimation of π/4 = 0.768

\pi/4\approx=\dfrac{\text{points inside circle area}}{\text{total points}}=\dfrac{768}{1000}=0.768

If we do it fo 10,000 xy points, we get

Point inside the circle area = 768

Estimation of π/4 = 0.768

\pi/4\approx=\dfrac{\text{points inside circle area}}{\text{total points}}=\dfrac{7819}{10000}=0.7819

The value of π/4 (4 decimals) is 0.7854.

The simulation gets more precise with the increase in the number of points.

The spreadsheet and the graphs are attached.

3 0
4 years ago
Suzanne wants to put a fence around Her Square Garden. If the garden covers an area of 121m2, how many meters of fencing does sh
Delicious77 [7]
So, since it is square, we are going to take the square root of 121 which is 11. And since fencing goes around something, that means we have to find the perimeter. So since all four sides are the same length, we can just multiply 11 by 4 to get 44 meters of fencing
7 0
3 years ago
Determine whether the two questions are equivalent. If so, name the property that is applied. 54 - (30 - 8) and (54-30) - 8
Sphinxa [80]

Answer:

The two equations are not equivalent and no property is used.

Step-by-step explanation:

54 - (30 - 8) ... (i)

(54 - 30) - 8 ... (ii)

Solving (i) and applying PEMDAS:

We open the brackets first;

54 - 30 + 8 = 54 + 8 - 30 = 32

Solving (ii) and applying PEMDAS:

We open the brackets first;

54 - 30 = 24

24 - 8 = 16

3 0
3 years ago
Divide 360 in the ratio 5:7 :))
antoniya [11.8K]
<span>ratio 5:7
so 5 + 7 = 12
360 /12 = 30

5 x 30 = 150
7 x 30 = 210
answer
</span><span>360 in the ratio 5:7 = 150:210</span>
7 0
3 years ago
Read 2 more answers
B is the midpoint of AC, D is the midpoint of CE, and AE = 23. Find BD.
jasenka [17]
Total area AE=23
There are a total of 4 subintervals 
soo... Take 23 divide by 4
Answer is 5.75
5 0
4 years ago
Read 2 more answers
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