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maxonik [38]
2 years ago
8

4.*

Mathematics
1 answer:
Rufina [12.5K]2 years ago
3 0

Answer:

9 units

Step-by-step explanation:

got it right on edg

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HURRRYY PLEASEE<br> Determine the surface área of the pyramids below
lakkis [162]

Step-by-step explanation:

EXAMPLE OF SURFACE AREA

1/2 × (30×4) × 39 + (30×30)

= 60 × 39 + 900

= 2340 + 900

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4 0
2 years ago
Five million divided by fivethousand
Phantasy [73]

Answer:

1000 (one thousand)

Step-by-step explanation:

4 0
3 years ago
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The n candidates for a job have been ranked 1, 2, 3,…, n. Let X 5 the rank of a randomly selected candidate, so that X has pmf p
Anon25 [30]

Answer:

A. E(x) = 1/n×n(n+1)/2

B. E(x²) = 1/n

Step-by-step explanation:

The n candidates for a job have been ranked 1,2,3....n. Let x be the rank of a randomly selected candidate. Therefore, the PMF of X is given as

P(x) = {1/n, x = 1,2...n}

Therefore,

Expectation of X

E(x) = summation {xP(×)}

= summation {X×1/n}

= 1/n summation{x}

= 1/n×n(n+1)/2

= n+1/2

Thus, E(x) = 1/n×n(n+1)/2

Value of E(x²)

E(x²) = summation {x²P(×)}

= summation{x²×1/n}

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3 0
3 years ago
To avoid a storm, a passenger-jet pilot descended 0.44 mile in 0.8 minutes. What was the planes average change of altitude per m
Tcecarenko [31]

The average change of altitude per minute would simply be the ratio of distance descended over time. That is:

average change of altitude = distance / time

average change of altitude = 0.44 mile / 0.8 minutes

<span>average change of altitude = 0.55 mile / minute</span>

6 0
3 years ago
Please please answer What is 4328 divided by 4
Lerok [7]
It is 1082. 

I hope it helps, you can do more on a calculator. :)))
6 0
3 years ago
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