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katrin2010 [14]
3 years ago
14

if two different people are randomly selected, what is the probability that they are both heavy smokers

Mathematics
1 answer:
KatRina [158]3 years ago
4 0

Answer:

1 out of 7 (1/7)

Step-by-step explanation:

Do some research. Studies show that an entire 1 billion people smoke. There are about 7 billion people i the world, right? so, the answer of picking a non-smoker is 6/7, and picking a smoker is 1/7. The average (or the probability of them both being smokers) is about 1/ 14 (I think, I hope, I pray)

Hope this helps!

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Need help for this please
Ksju [112]

Answer:

The area of the circle is approximately <u>154</u> square meters

Step-by-step explanation:

Area of a circle formula: A = \pi r^{2}

given:

- diameter = 14m

- pi = 22/7

radius (r) = diameter/2 = 14/2 = 7\\A = 22/7*(7)^2\\A = 22/7*(49)\\A = 154

8 0
2 years ago
Find the axis of symmetry of the graph of the function. (5 points) f(x) = 3x2 + 12x + 9
Kryger [21]

Considering the definition of axis of symmetry, the axis of symmetry of the graph of the function f(x) = 3x²+ 12x+ 9 is x=-2.

<h3>Axis of symmetry</h3>

An axis of symmetry is an imaginary reference line that, when dividing any shape into two parts, its opposite points are equidistant from each other, that is, they are symmetrical.

In other words, the axis of symmetry is a vertical line that divides the parabola into two congruent halves.

The axis of symmetry is the line perpendicular to the "x" axis that contains the vertex of the function, that is, it always passes through the vertex of the parabola. So the x-coordinate of the vertex is the equation of the axis of symmetry.

That is, in a quadratic function that has the form:

f(x)= ax² + bx + c

the axis of symmetry is a vertical line and it is defined as x=\frac{-b}{2a}.

<h3>Axis of symmetry of f(x) = 3x² + 12x + 9</h3>

In this case, you know:

  • a= 3
  • b=12
  • c=9

Replacing in the definition of axis of symmetry:

x=\frac{-12}{2x3}

Solving:

x=\frac{-12}{6}

<u><em>x= -2</em></u>

Finally, the axis of symmetry of the graph of the function f(x) = 3x²+ 12x+ 9 is x=-2.

Learn more about axis of symmetry:

brainly.com/question/24737967

brainly.com/question/10473291

#SPJ1

3 0
2 years ago
Why is tesla stock increasing/decreasing in value
Phantasy [73]

Answer:

elon musk

Step-by-step explanation:

elon sends out random, uncalled for tweets, which mess with the stock value.

For example, when the stock was very high, he tweeted,"Tesla stock too high"

7 0
3 years ago
Read 2 more answers
What is3\8 +5/2 need help
scoray [572]
3/8 + 5/2
=3/8 + 20/8
= 23/8
or
= 2 7/8
6 0
3 years ago
What is the asymptote of this function?<br><br> A) x=3<br> B) y=3<br> C) x=4<br> D) y=4
max2010maxim [7]

Answer:

b

Step-by-step explanation

look at the way the way the line curves and cross over into the positive across the dotted line. the curw = y

5 0
2 years ago
Read 2 more answers
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