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DochEvi [55]
3 years ago
6

Assume that there are 2 trials.

Mathematics
2 answers:
vampirchik [111]3 years ago
7 0
Answer: The p(success) = 0.6

Your question is a little unclear, but I believe you are asking about the probability that at least one of the trials in the experiment were successful.

If that is the case, you simply have to add the probability of 1 success with the probability of 2 successes.

That is 0.48 +  0.16 = 0.64

Rounding our answer to one decimal place gives us 0.6.
WINSTONCH [101]3 years ago
3 0

The correct answer on the test was

P(success)=0.4

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David drove 20 miles in 5 mins. Sean drove 45 miles in 9 mins. Who drove at a faster rate? Explain.
mars1129 [50]
Sean drove at a faster rate because if you divide each miles/minutes then it gives you how many miles per minute they drive. 20/5 is 4, and 45/9 is 5, and 5 is greater than 4.
6 0
3 years ago
12. Find a number t such that the line containing the points
yKpoI14uk [10]

Answer:

t= 11

Step-by-step explanation:

\boxed{gradient =  \frac{y1 - y2}{x1 - x2} }

Gradient of line that contains points (3, 7) & (5, 11)

=  \frac{11 - 7}{5 - 3}

=  \frac{4}{2}

= 2

The product of the gradients of two perpendicular lines is -1.

Gradient of the line that contains points (t, -2) & (-3, 5)

= -1 ÷2

=  -  \frac{1}{2}

\frac{ - 2 - 5}{t - ( -3 )}  =  -  \frac{1}{2}

\frac{ - 7}{t + 3}  =   \frac{ - 1}{2}

Cross multiply:

-(t +3)= -7(2)

Dividing by -1 on both sides:

t +3= 7(2)

t +3= 14

t= 14 -3

t= 11

4 0
3 years ago
Use these four expressions to make a hypothesis about the closure property of interfere under each operation.
12345 [234]

Answer: 1. Yes. 2. Yes. 3. Yes. 4. No

Step-by-step explanation:

5 0
3 years ago
I need help really bad please
Lana71 [14]

Answer:

I think the number is 26

Step-by-step explanation:

Because you need another whole number so you start with 15 then add on eleven to make it equel.

hope this helped.

8 0
3 years ago
in how many ways can 12 $1 coins be shared between Josh Frank and Susie if each of them received at least three coins
frutty [35]
12/3=4 so they can get more than 3 coins
8 0
3 years ago
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