Out of 18 people in a room, 2 have red hair. What is the probability that a person picked at random from the room does NOT have red hair?
Give an explanation plz:)​

Answers

Answer 1

Answer :

Total number of people in the room = 18

Number of people with red hair = 2

Number of people not with red hair = 18 - 2 = 16

Probability of picking a person who doesn't have red hair = [tex]\sf\dfrac{Number\:of\:favourable\:outcomes}{Total\:outcomes}[/tex]

Probability = 16/18

Reduce the fraction with 2

Probability = 8/9

Answer 2

Answer:

[tex]\implies\boxed{\red{\sf P( not \ having\ red\ hair)=\dfrac{ 8}{9}}}[/tex]

Step-by-step explanation:

Given :-

There are 18 people in the room .Two of them have Red hair.

And we need to find the probability that a person picked at random from the room does not have red hair . So for that firstly let us find how many people do not have red hair.

According to Question :-

[tex]\implies n_{(red)}+ n_{(not\ red)}= 18 \\\\\implies 2 + n_{(not\ red)}= 18 \\\\\implies n_{(not\ red)}= 18 -2 =\boxed{\red{16}}[/tex]

Hence the probability is :-

[tex]\implies P( not \ having\ red\ hair)=\dfrac{ n_{(favourable\ outcomes)}}{n_{(possible\ outcomes)}} \\\\\implies P( not \ having\ red\ hair)=\dfrac{ 16}{18} \\\\\implies\boxed{P( not \ having\ red\ hair)=\dfrac{ 8}{9}}[/tex]

Hence the required probability is 8/9 .


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What is the approximate area of a circle with a radius of 15 ft? Use your calculator button for it Enter your answer in the box. Round to four decimal places ft2​

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Answer:

706.8583

Step-by-step explanation:

[tex]Area = \pi r^2[/tex]

[tex]Area = \pi 15^2[/tex]

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[tex]Area = 706.85834625[/tex]

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Answer:

[tex]x = 6 \sqrt{3} [/tex]

Step-by-step explanation:

[tex]x = \sqrt{ {12 }^{2} - {6}^{2} } = 6 \sqrt{3} [/tex]

Pls solve this ill give you brainiest

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Answer:

-2

Step-by-step explanation:

by testing

PLEASE QUICK I ONLY HAVE 11 MINS I NEED THIS ONE QUICK!

WILL GIVE BRAINLY

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A business owner wants to have the front window of her store painted and is considering two
artists for the job. Tiana has quoted a flat rate of $292 for the job. Denise's quote is $39 per
hour, plus $19 to cover the cost of materials. Depending on how long it takes Denise to paint
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to take? How much would it cost?

Answers

denise would have to take seven hours to charge the same amount of money as tiana. furthermore, it would cost the same amount as that is what the prompt is asking for.

to get the answer:
i subtracted $19 from $292 to eliminate the
fee element because if you were to divide
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after subtracting i got $273

from there i divided $273 by $39 and got 7 (the amount of hours it would take)

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please show how you know!

Answers

Answer:

Second and last options are correct answers.

Step-by-step explanation:

Correct options are:

[tex] \huge \frac{(8^3)^2}{8^{-5}}= \purple {\bold {\frac{8^6}{8^{-5}}}} [/tex]

[tex]\huge \frac{(8^3)^2}{8^{-5}}= \frac{8^6}{8^{-5}}=\red{\bold {8^{11}}} [/tex]

Emma has a gift box in the shape of a cube. Each side of the box measures 9 centimeters. What is the volume of the gift box?

Answers

Answer:

729

Step-by-step explanation:

Each side of the cube measures 9cm

The volume of a cube is V^3

Therefore the volume can be calculated as follows

= 9^3

= 729

Hence the volume is 729

Plz answer quickly will mark brainless

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B is answer to this

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Answer:

sure I can help with that.....

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Please help! I will give Brainliest!
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Answers

Annie is correct, and I’ll tel u why you can make the same triangle but just flip it so it not going the same way see tell me if u got it correct.
Annie is the one who’s correct.

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Answers

Given:

A fruit salad recipe calls for [tex]\dfrac{3}{4}[/tex] pound of apples and [tex]\dfrac{2}{5}[/tex] pound of dates.

To find:

The least common denominator of the fractions.

Solution:

The given fractions are:

[tex]\dfrac{3}{4}[/tex] and [tex]\dfrac{2}{5}[/tex]

The denominators of these fractions are 4 and 5 respectively.

Factor form of 4 is 2×2.

5 is a prime number, so factor form of 5 is 5×1.

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[tex]LCD=20[/tex]

Therefore, the least common denominator of the fractions is 20.

The side lengths of a triangle are 5, 12, and 13, is this a right triangle?

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Answer:

D.

Step-by-step explanation:

Answer:

The answer is D

Step-by-step explanation:

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what kind of question is this lol ? i don’t even understand it

Tell me if its a function or not plz help its due today am giving brainliest ppppppppppllllllzzzzzz

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Answer:

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Step-by-step explanation:

A square based pyramid has a square base and ________ triangular sides.
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Answer:

4 triangular sides

Step-by-step explanation:

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Answer:

A

Step-by-step explanation:

[tex]d^2+16^2=25^2\\d^2+256=625\\d^2=368\\d=19.2[/tex]

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The answer is D. 47 meters.

Can someone please explain this question to me?
The image is attached.

Answers

Answer:

13

Step-by-step explanation:

Given the expression;

2 1/3 : 4 1/3 = 7 : x

Wea re to look for x;

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7/13 = 7/x

Cross multiply

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please answer correctly !!!!! Will mark Brianliest !!!!!!!!!!!!!!

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Answer:

angle measures to the.

Step-by-step explanation:

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Answers

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Answer:

-4a/-8 +-12a

Step-by-step explanation:

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Bob has a coin cup with four $1 tokens and two $5 tokens in it. He also has two $10 tokens and one $25 token in his pocket.
He randomly draws a token froin the cup, and then randomly draws a token from his pocket. What is the probability that he
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OB.
. В

Answers

We want to find the probability that Bob will randomly draw $30 in tokens. We will find that the probability is P = 1/6 = 0.167

Finding the probability.

The only case where he draws $30 randomly is when:

He takes one $5 token from the coin cupHe takes the $25 token from his pocket.

Then we need to find the probabilities for these two events.

For the first one, the probability will be equal to the quotient between the number of $5 tokens and the total number of tokens in the cup. There are 6 tokens in the cup and 2 of these are $5 tokens, then the probability is:

p = 2/6 = 1/3

For the second event the probability is computed in the same way, he has two tokens in his pocket and one of them is a $25 token, then the probability is:

q = 1/2

The joint probability, the probability that both of these events happen at the same time, is given by the product of the individual probabilities, so we get:

P = p*q = (1/3)*(1/2) = 1/6 = 0.167

So the probability that he draws $30 in tokens is P = 1/6 = 0.167.

If you want to learn more about probability, you can read:

https://brainly.com/question/251701

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4/9

Step-by-step explanation:

What is the surface area of this rectangular prism? 64 cm 35 cm 42 cm​

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bbbbbbbbbbbbbbbb

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24,000 milliliters

Step-by-step explanation:

Because

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Step-by-step explanation:

Given: x + 3.8 > -10.02.



Choose the solution set.

Answers

Answer:

x > -13.82

Step-by-step explanation:

The first step in finding the solution set is to subtract 3.8 from both sides of the given inequality:

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You and your friends go to the state fair. It costs $6 to get into the fair
and $2 each time you go on a ride. Consider the relationship between
number of rides and total cost.

Model the equation to show the linear relationship.

Answers

Answer:

[tex]let \: number \: of \: rides \: be \: \: n \\ let \: cost \: be \: \: c \\ n \: \alpha \: c \\ n = kc \\ k \: is \: a \: costant \: of \: proportionality \\ when \: n = 1. \: \: c = 2 \\ 1 = (k \times 2) \\ k = \frac{1}{2} \\ therefore : \\ n = 0.5c[/tex]

Answer:

[tex]\huge\boxed{\sf x = 6 + 2y}[/tex]

Step-by-step explanation:

Let the total cost be x and number of rides be y

It costs $2 on each ride. So, the rides' cost will be:

=> Number of rides * One rides' cost

=> y * 2

=> 2 y

So, The total cost will be:

Total cost = Entrance cost + Rides' cost

Total cost = $6 + $2(Number of rides)

x = 6 + 2y

[tex]\rule[225]{225}{2}[/tex]

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~AH1807

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Answers

Answer:

5x=0

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Answer:

5x=0

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What is the distance to the nearest tenth of a unit between point H ( -4,6 ) and point I ( 2,-3 )

Answers

Answer:

10.81 units

Step-by-step explanation:

Given data

point H ( -4,6 ) and point I ( 2,-3 )

x1= -4

y1=6

x2= 2

y2=-3

The formula for the distance between two points is

d=√((x_2-x_1)²+(y_2-y_1)²)

d=√((2-(-4))²+(-3-6)²)

d= √(2+4)²+(-9)²)

d= √(6)²+(-9)²)

d= √36+81

d=√117

d= 10.81 units

Hence the distance between the points is 10.81 units

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