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Julli [10]
3 years ago
7

Alex surveyed his classmates to determine who has been surfing and who has gone snowboarding let a be the event that a classmate

has snowboard it and let be be the event that a classmate has served if alex picked a classmate at random what is p(b|a)
Mathematics
1 answer:
strojnjashka [21]3 years ago
8 0

Answer: 3/4

Step-by-step explanation: Given that B is the event occurring and A is the event that has happened, we will use 36/48 as our probability. Once simplifying the numbers, you will get .75 or 3/4.

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Pls help me for brainliest answer
Ket [755]

Answer with Step-by-step explanation:

a)3n + 4 \\  \\n = 1 \\ 3 \times 1 + 4 \\ 3 + 4 \\  =7 \\  \\ n = 2 \\ 3 \times 2 + 4 \\ 6 + 4 \\  = 10 \\  \\ n = 3 \\ 3 \times 3 + 4 \\ 9 + 4 \\  = 13 \\  \\ n = 4 \\ 3 \times 4 + 4 \\ 12 + 4 \\  = 16 \\  \\ n = 10 \\ 3 \times 10 + 4 \\ 30 + 4 \\  = 34 \\

So in this sequence,

1st term = 7

2nd term = 10

3rd term = 13

4th term = 16

10th term = 34

b)4n - 5 \\  \\ n = 1 \\ 4 \times 1 - 5 \\ 4 - 5 \\  =  - 1 \\  \\ n = 2 \\ 4 \times 2 - 5 \\ 8 - 5 \\ =  3 \\  \\ n = 3 \\ 4 \times 3 - 5 \\ 12 - 5 \\  = 7 \\  \\ n = 4 \\ 4 \times 4 - 5 \\ 16- 5 \\  = 11 \\  \\ n = 10 \\ 4 \times 10 - 5 \\ 40 - 5 \\  = 35

In this sequence,

1st term = -1

2nd term = 3

3rd term = 7

4th term = 11

10th term =35

5 0
3 years ago
Hi im lazy so can someone help me with this<br> how many factors does 2000 have thx
viva [34]

Answer:

19

Step-by-step explanation:

I just googled it lol

6 0
3 years ago
Read 2 more answers
Evaluate the expression 8 power of 2+3.8-10 times 2
Nitella [24]

Use PEMDAS:

P Parentheses first

E Exponents (ie Powers and Square Roots, etc.)

MD Multiplication and Division (left-to-right)

AS Addition and Subtraction (left-to-right)

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

8^2+3.8-10\cdot2=64+3.8-20=67.8-20=47.8

6 0
3 years ago
Write the proportion.<br> 6.5 hours is to 5.2 hours as<br> 8.0 hours is to 6.4 hours
love history [14]

Step-by-step explanation:

6,5:5,2=8:6,4 hope it helps

5 0
3 years ago
Help please! Thanks! :)
solniwko [45]

Answer:

57

Step-by-step explanation:

7 0
3 years ago
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