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Bezzdna [24]
3 years ago
12

Find the indicated probability. In one town, 71% of adults have health insurance. What is the probability that 4 adults selected

at random from the town all have health insurance
Mathematics
1 answer:
quester [9]3 years ago
7 0

Answer:

0.254

Step-by-step explanation:

Given that:

Percentage of those having health insurance = 71%

p = 71 / 100 = 0.71

Number of adults selected at random, n = 4

Probability that 4 selected have health insurance :

p^n = 0.71^4 = 0.25411681

= 0.254

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Please help me I don't understand this at all
saveliy_v [14]

Answer:

a) θ = \frac{4}{3}\pi     b) r = 31.27 inch

Step-by-step explanation:

(a)

area of sector: \frac{1}{2} * r² * θ

384 = \frac{1}{2} * r² * θ

384 = \frac{1}{2} * (24)² * θ

θ = 384/288

θ = \frac{4}{3}\pi

(b)

384 = \frac{1}{2} * r² * \frac{\pi }{4}

r² = 384 * 2 * \frac{4}{\pi }

r² = 977.848

r = √977.848

r = 31.27 inch

6 0
2 years ago
A sports magazine prints 12 issues per year, and a technology magazine prints 10 issues per year. The total number of pages in a
Evgesh-ka [11]

Answer:

s=t-18...(1)

12*s=10*t+32...(2)

Step-by-step explanation:

Let s be the number of pages in each issue of the sports magazine, and t be the number of pages in each issue of the technology magazine.

We have been given that Each issue of the sports magazine has 18 fewer pages than each issue of the technology magazine. We can represent this information in an equation as:

s=t-18...(1)

We are also given that sports magazine prints 12 issues per year, so the total number of pages in all the issues of sports magazine will be 12*s.

We are given that a technology magazine prints 10 issues per year, so the total number of pages in all the issues of technology magazine will be 10*s.

Further, the total number of pages in all the issues of the sports magazine for one year is 32 more than the total number of pages in all the issues of the technology magazine for one year.

We can represent this information in an equation as:

12*s=10*t+32...(2)

Therefore, our desired system of equations will be:

s=t-18...(1)

12*s=10*t+32...(2)

8 0
3 years ago
If the circumference of a circle is 3/4pi cm what is the area of the circle in terms of pi
Vinil7 [7]

Answer:

Area = π×(3/8)²

Step-by-step explanation:

Let p represent the circumference and r the radius

then

p = 3/4π = 2×π×r ⇒ 3/4 = 2r

then r = (3/4)/2 = 3/8

Area = π×r² = π×(3/8)²

:)

5 0
2 years ago
A rectangular garden measures 26ft by 37ft. Surrounding (and bordering) the garden is a path 2ft wide. Find the area of this pat
Bess [88]
26*37=962sqft
Add 4 ft to both numbers (2ft per side)
30*41=1230sqft
Subtract out the garden area
1230-962=268sqft
The path is 268 sq ft
7 0
3 years ago
Solve for x: 3|x − 3| + 2 = 14
sammy [17]
\left\{\begin{array}{ccc}a&for& a\geq0\\-a&for&a \ \textless \  0\end{array}\right \\\\3|x-3|+2=14\ \ \ |subtract\ 2\ from\ both\ sides\\\\3|x-3|=12\ \ \ \ |divide\ both\ sides\ by\ 3\\\\|x-3|=4\iff x-3=4\ or\ x-3=-4\ \ \ |add\ 3\ to\ both\ sides\\\\\boxed{x=7\ or\ x=-1}
8 0
3 years ago
Read 2 more answers
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