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-BARSIC- [3]
2 years ago
7

N

Mathematics
1 answer:
Vaselesa [24]2 years ago
6 0

Answer:

75(1/3)^(n-1).

Step-by-step explanation:

This is a Geometric sequence whose common ratio is  15/75 3/15 = 1/3.

so the nth term  an = a1 r^(n-1)

= 75(1/3)^(n-1).

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g Nationwide, a certain disease occurs only a small proportion of people (.000215). A certain town has 74,000 residents. Use the
Andrei [34K]

Answer:

The probability that the town has 30 or fewer residents with the illness = 0.00052.

Step-by-step explanation:

So, we have the following set of data or information or parameters given from the question above and they are; the number of people living in that particular society/community/town = 74,000 residents and the proportion of people that the diseases affected = .000215.

The first step to do is to determine the expected number of people with disease. Thus, the expected number of people with disease = 74,000 × .000215 = 15.91.

Hence, the probability that the town has 30 or fewer residents with the illness = 1.23 × 10^-7 × 15.91^30/ 2.65253 × 10^-32 = 0.00052.

Note the formula used in the calculating the probability that the town has 30 or fewer residents with the illness =  e^-λ × λ^x/ x!

8 0
2 years ago
A pan for baking French bread is shaped like half a cylinder. It is 12 inches long and 3.5 inches in diameter. What is the volum
Lerok [7]

Step-by-step explanation:

5 0
3 years ago
Read 2 more answers
Pls help this question bamboozles me and I am now sitting here confused
UkoKoshka [18]

Answer:

10+3pi

Step-by-step explanation:

The perimeter of of the shaded region is

AC+CT+marcSBT+SA

*Finding AC

The diagonals of a rectangle are equal is measurement. Since RB is a radius of the circle, then RB is 6. Since AC and RB are both diagonals of the rectangle, then AC is also 6.

*Finding CT

CT=RT-RC where RC is the width of the rectangle

Also RT is a radius so we have that

CT=6-RC

*Finding marcSBT

The circumference of a whole circle is 2pi*r.

We have a quarter of this with r=6.

1/4*2pi(6)

1/4*12pi

3pi

*Finding SA

SA=RS-AR

RS is a radius of the circle and AR is the length of the rectangle.

So we have that this can be rewritten as

SA=6-AR

Let's put these parts together:

6+6-RC+3pi+6-AR

Simplifying:

18-RC-AR+3pi

18-(RC+AR)+3pi

18-8+3pi (Remember length plus width equal 8)

10+3pi

4 0
3 years ago
X is from a to b translates to a≤x≤b<br><br> A. True<br> B. False
JulsSmile [24]

Answer:

True

Step-by-step explanation:

mark brainliest

3 0
3 years ago
Read 2 more answers
Lily owed Megan $129.42. So far, she has paid Megan $32.56.
anzhelika [568]

Answer:

She still owes her $96.86

Step-by-step explanation:

Subtract 32.56 from 129.42

7 0
3 years ago
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