Henry has 3 black shirts and 7 blue shirts in his wardrobe. Two shirts are drawn without replacement from the wardrobe. What is the probability that both of the shirts are black?

Answers

Answer 1

Answer:

Answer:

The probability that both of the shirts are black is $(1)/(15)$

Step-by-step explanation:

Given : Henry has 3 black shirts and 7 blue shirts in his wardrobe. Two shirts are drawn without replacement from the wardrobe.

To find : What is the probability that both of the shirts are black?

Solution :

Number of black shirts = 3

Number of blue shirt = 7

Total number shirts = 3+7=10

The probability that first shirts is black is $(3)/(10)$

Two shirts are drawn without replacement from the wardrobe.

Number of black shirt left = 2

Total shirts = 9

The probability that second shirts is black is $(2)/(9)$

So, The probability that both of the shirts are black is

$P=(3)/(10)*(2)/(9)$

$P=(6)/(90)$

$P=(1)/(15)$

Answer 2

Answer: Since there are three black shirts and 7 blue shirts, he has a 3/10 chance of picking a black.

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Answers

$Hi \n \n 3x\²-7x+4 ~~--\ \textgreater \ \boxed{(-b\pm √(b\²-2ac) )/(2a) } \n a=3 \n b=-7 \n c=4 \n \n x= (7\pm √((-7)\²-2.3.4 ) )/(2.(3)) \n \n x= (7\pm5)/(6) \begin{cases}x_1= (7+5)/(6)=2 \n \n x_2= (7-5)/(6)= (1)/(3) \end{cases} \n \n \therefore~(2; (1)/(3)) \n \n \n$

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What is the quotient written in scientific notation? 2x10^21 -------- 8x10^3 A)2.5x10^17 B)2.5x10^6 C)0.25x10^18 D)0.25x10^7

Answers

Have a good day :).......

The area of a square piece of cardboard is 81 square inches. What is the length of the cardboard?

Answers

By definition, the area of a square is given by:

Where,

L: length of the sides of the square.

Substituting values we have:

From here, we clear the value of L.

We have then:

Answer:

the length of the cardboard is:

$L = 9 in$

The square root of 81 is 9. 9*9=81. The length is 9 inches.

Line segment AB measures 18 units. A number line with no numbers. A closed circle above the line is labeled A. A closed circle nine notches down the line is labeled B. The space between point A and the next notch is labeled d. What is d, the distance between tick marks on the number line? 1 unit 2 units 3 units 9 units

Answers

Answer: 2 units

Step-by-step explanation:

Given that :

Length of of line segment (AB) = 18 Units

d = distance between point A and successive notch

Number of notches between point A and B = 9

If the length of line AB = 18 units and the number of notches between point A and B = 9

Then distance d, between successive tick marks :

Length of Line segment / number of notches or tick marks between A and B

= 18 units / 9

= 2 units.

Hence distance between tick marks on the number line is 2 units.

Answer:

its b

Step-by-step explanation:

b on edu 2020

Find the slope and y-intercept of the line.
14x + 4y = 24

Answers

14x+4y=24
4y=-14x+24
y=-7/2x+6
The slope is -7/2 and the y-intercept is 6.

y= 14/4x + 6 is the slope.. the slope itslef being 14/4 and the y intercept is 6

Can someone help me fast