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ryzh [129]
4 years ago
15

Carlos and Eddie went to a New

Mathematics
1 answer:
Masteriza [31]4 years ago
4 0
Answer: they left home at 8:38

Work:
8:45 + 20 mins = 9:05 (time they arrived)
9:05 - 27 mins = 8:38 (time they left)
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What are 2 ways to find out if a couple planning on having 3 children, WON'T have any boys?
expeople1 [14]
is why the heck what is weird lol
7 0
3 years ago
383.52 to the nearest tenth
ELEN [110]

Answer:

383.5

Step-by-step explanation:

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3 0
3 years ago
Two resistors, with resistances R1 and R2, are connected in series. R1 is normally distributed with mean 100 ohms and standard d
puteri [66]

Answer:

The probability that R2 is bigger than R1 is P=0.9633.

Step-by-step explanation:

We need to compute the probability that R2 is bigger than R1:

P(R_2>R_1)

To do this,  we define a new variable Das the difference between the two resistances:

D=R_2-R_1

Then,

P(R_2>R_1)=P(R_2-R_1>0)=P(D>0)

As R1 and R2 are normal random variables, the properties of D are:

\mu_D=\mu_{R2}-\mu_{R1}=120-100=20\\\\\sigma_D=\sqrt{\sigma_{R2}^2+\sigma_{R1}^2}=\sqrt{10^2+5^2}=\sqrt{100+25}=\sqrt{125}=11.18

Then, we can calculate the z-value for D=0

z=\frac{x-\mu}{\sigma} =\frac{0-20}{11.18}=\frac{-20}{11.18}=  -1.79

P(D>0)=P(z>-1.79)=0.9633

8 0
3 years ago
.The quantities xxx and yyy are proportional.
Evgen [1.6K]

Answer:

2.5

Step-by-step explanation

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8 0
3 years ago
If you can help that would be great!!!!
Mila [183]

Answer:

1 and four

Step-by-step explanation:

4 0
3 years ago
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