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postnew [5]
3 years ago
11

Sarah rolls a die twice. What is the probability that she rolls a 3 and then an even number?

Mathematics
2 answers:
NISA [10]3 years ago
8 0

Answer:

a:1/12

Step-by-step explanation:

The odds of a 3 is 1/6. The odds of an even is 1/2. 1/2*1/6=1/12. The answer is a:1/12

vekshin13 years ago
6 0

Answer:

A) 1/12

Step-by-step explanation:

The sample space of rolling a die is { 1,2,3,4,5,6}

P (getting 3)= The number of "3"'s  in the sample space over the number of items in the sample space

P (getting a 3} = 1/6

P (getting  even)= The number of evens  in the sample space over the number of items in the sample space

P (getting an even} = 3/6= 1/2

Since these are independent events, we multiply the probabilities

P(3, even) = 1/6 * 1/2 = 1/12

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Pls owrk out the missing angle
Alik [6]

Answer:

125

Step-by-step explanation:

A full circle is 360°

80+85+70=235

360-235=125

4 0
2 years ago
Given the lengths of the sides which of the following would NOT be a right triangle?
zmey [24]
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5 0
2 years ago
PLEASE HELP!!!! 25 POINTS!!!!
Andrei [34K]

Answer:

0.9562

Step-by-step explanation:

Binomial probability is mathematically expressed as:

P(X=x)={n\choose x}p^x(1-p)^{n-x}

Given that p=0.18, n=5 ,  is calculated as:

P(X\leq 2)=P(0)+P(1)+P(2)\\\\={5\choose 0}0.18^0(1-0.18)^5+{5\choose 1}0.18^1(1-0.18)^4+{5\choose 2}0.18^2(1-0.18)^3\\\\=0.3707+0.4069+0.1786\\\\=0.9562

Hence, the probability of no more than 2 successes in 5 trials is 0.9562

4 0
3 years ago
One bag contains three white marbles and five black marbles, and a second bag contains four white marbles and six black marbles.
Troyanec [42]
It will be 21/40

probability getting both white marbles

3/8×4/10=12/80

probability getting both black marbles

5/8×6/10=30/80

12/80+30/80=42/80= 21/80
5 0
3 years ago
Read 2 more answers
What is 2 times 2 plus 2 divided by 2
egoroff_w [7]
The question says:
2×2+2÷2 
so first you should find 2 × 2 which is 4 and then 2 ÷ 2 which is 1 
now you have:
4 +1 = 5 so the answer is 5 :)))
i hope this is helpful 
have a nice day 
3 0
3 years ago
Read 2 more answers
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