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Lelu [443]
1 year ago
5

Can someone explain this to me?

Mathematics
1 answer:
Mars2501 [29]1 year ago
6 0

Answer:

1 only

Step-by-step explanation:

1 only, as the other points have defined values.

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If y varies inversely as the square of x, and y = 1/8 when x = 1, find y when x = 5.
Kisachek [45]
Y = k / x² ( y varies inversely as the square of x ) 
y = 1/8 when x = 1:
1/8 = k / 1²
8 k = 1
k = 1/8
For x = 5:
y = 1/8  / 5² = 1/8 : 25 = 1/8 · 1/25 = 1/200
Answer: A ) 1/200


6 0
3 years ago
A sample of 2,000 people yielded P(hat) = .52. What is the variance of the population proportion?
lys-0071 [83]

Answer:

d. .00012 or 0.00012

Step-by-step explanation:

The variance of the population proportion formula is given as:

p(1 - p)/n

Where n = sample size

p = population proportion or p(hat)

n = 2000 people

p = 0.52

Variance of the population proportion = 0.52(1 - 0.52)/ 2000

= 0.52 × 0.48 /2000

= 0.2496 /2000

= 0.0001248

Therefore the Variance of the population proportion is approximately = 0.00012

3 0
3 years ago
A quantity with an initial value of 980 decays exponentially at a rate of 0.3% every 6 decades. What is the value of the quantit
solong [7]

Answer:

956.73

Step-by-step explanation:

0.3% = 0.003

1-0.003 = 0.997

49/6 = 8 r1 (use 8 because decay is not continuous)

0.997^8 = 0.97625...

0.97625... x 980 ≈ 956.73

8 0
3 years ago
What are the answers please help!
Softa [21]

Answer: A, C, D

Step-by-step explanation:

A) Correct. They factored out 5.

C) Correct. They factored out 10.

D) Correct. They factored out -5.

6 0
1 year ago
A​ _______ variable is a variable that has a single numerical​ value, determined by​ chance, for each outcome of a procedure. A
Oxana [17]

Answer:

random variable

Step-by-step explanation:

Random variable also known as stochastic variables are variables that are used in statistics and probability, The value of a random variable must be determined by chance which remain uncertain and depends on the outcome of a random process or experiment.

Unlike algebra, when random variable is introduced into a mathematical model, it is represented by capital letter and it has a single numerical value.

6 0
3 years ago
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