All categories

3 years ago

Can anybody help me?

Mathematics

1 answer:

MakcuM [25]3 years ago

8 0

Im not really sure but i need the same

You might be interested in

Haresh is writing a coordinate proof involving an isosceles triangle. Haresh places his triangle on the coordinate plane such th

kupik [55]

(a/2,b)

Hope this helps!

7 0

3 years ago

Read 2 more answers

A boiler has five identical relief valves. the probability that any particular valve will open on demand is .95. assuming indepe

Marysya12 [62]

To calculate P(at least one valve opens), we can find 1 - p(no valves open).
This is equal to 1 - (0.05)^5, or 0.9999996875.
P(at least one valve fails to open) is equal to 1 - p(all valves open and none fail). This is 1 - (0.95)^5, or 0.2262190625.

7 0

3 years ago

Read 2 more answers

Andrea and Ashley are middle distance runner's for the schools traffic and FaceTime in the 500 m race are approximately normally

swat32

Answer:

0.006 is the probability that the record will be broken in next year.

Step-by-step explanation:

We are given the following information in the question:

Mean, μ = 62 seconds

Standard Deviation, σ = 0.8 seconds

We are given that the distribution of face time is a bell shaped distribution that is a normal distribution.

Formula:

$z_{score} = \displaystyle\frac{x-\mu}{\sigma}$

The record will be broken if the time is less than 60 seconds.

P(time is less than 60 seconds)

P(x < 60)

$P( x < 60) = P( z < \displaystyle\frac{60 - 62}{0.8}) = P(z < -2.5)$

Calculation the value from standard normal z table, we have,

$P(x < 60) =0.006 = 0.6\%$

Thus, 0.006 is the probability that the record will be broken in next year.

6 0

3 years ago

Please help. Thank you in advance.

ivolga24 [154]

Answer:

The second choice is the same so it is the last one

7 0

3 years ago

Select all the correct answers. <br> will mark brainliest for correct answer <br> pls take ur time

Daniel [21]

Answer:

I think it's B, C, E

4 0

3 years ago

Read 2 more answers