2 years ago

Brainiest to whoever is correct

Mathematics

1 answer:

olchik [2.2K]2 years ago

8 0

Answer:

algebra

angle in a triangle is 180degree so you do 20+8=180degree and you do y+x+v+w+z+b

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An urn contains 12 balls, of which 4 are white.

wel

Answer:

a) $\frac{1}{3}$

b) $\frac{4}{12}\,,\,\frac{4}{11}\,,\,\frac{4}{10}\,,...$

Step-by-step explanation:

Number of balls in the urn = 12

Number of white balls in the urn = 4

So, number of balls which are not white = 12 - 4 = 8

We know that probability = No. of outcomes/Total number of outcomes

Let $A_i\,,\,B_i\,,\,C_i$ denotes the event of getting white ball by A, B and C

a) each ball is replaced after being drawn.

Probability = Number of white balls/Total number of balls

Solution: $P(A_i)=P(B_i)=P(C_i)=\frac{4}{12}=\frac{1}{3}$

b)the balls that are withdrawn are not replaced.

Solution:

If A wins: $P(A_1)=\frac{4}{12}=\frac{1}{3}$

If A lost and B wins: $P\left ( B_1|A_1^{c} \right )=\frac{4}{11}$

If A and B lost and C wins: $P\left ( C_1|A_1^{c}\,B_1^{c} \right )=\frac{4}{10}$

and so on....

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3 years ago

Erick paid a $75 registration fee to join the gym. He pays $15 each month.

liraira [26]

Answer:

$150

Step-by-step explanation:

Erick has to pay $15 per month so for 5 months he will have to pay $75 because 15 times 5 is 75. So $75 for registration fee + $75 for 5 months to use the gym give us $150

7 0

2 years ago

In the 2001-2002 season Susan bird the WNBA team the Seattle storm made 27% of her 3 point shots write this percent as a decimal

Ronch [10]

Answer: 0.27

Step-by-step explanation:

Move the decimal two places to the left

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3 years ago

HELP WITH THE QUESTIONS

tatuchka [14]

1 is 10 dimes that is what I’ll do

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2 years ago

What is -15 2/3 + (-5 2/3)

solniwko [45]

Answer is -21 1/3

-15 2/3

+ -5 2/3

-------------

Answer is 21 1/3

7 0

3 years ago

Read 2 more answers