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3 years ago

Help me, and Marcus we need it

Mathematics

2 answers:

tia_tia [17]3 years ago

8 0

i think this is the answer

saw5 [17]3 years ago

6 0

This is not middle school work

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Which area of this sound wave represents a compression?

Karo-lina-s [1.5K]

Answer:

Step-by-step explanation:

idk but im think im sure

4 0

3 years ago

Read 2 more answers

www.g The physical plant at the main campus of a large state university recieves daily requests to replace fluorescent lightbulb

damaskus [11]

Answer:

$z=\frac{24-40}{8}=-2$

$z=\frac{40-40}{8}=0$

And then the percentage between 24 and 40 would be $\frac{95}{2}= 47.5 \%$

Step-by-step explanation:

For this problem we have the following parameters given:

$\mu = 40, \sigma =8$

And for this case we want to find the percentage of lightbulb replacement requests numbering between 24 and 40.

From the empirical rule we know that we have 68% of the values within one deviation from the mean, 95% of the values within 2 deviations and 99.7% within 3 deviations.

We can find the number of deviations from themean for the limits with the z score formula we got:

$z=\frac{X-\mu}{\sigma}$

And replacing we got:

$z=\frac{24-40}{8}=-2$

$z=\frac{40-40}{8}=0$

And then the percentage between 24 and 40 would be $\frac{95}{2}= 47.5 \%$

5 0

3 years ago

A flag in the shape of a right triangle is hung over the side of a building as shown below. The total weight of the flag is 250

liq [111]

B hope this helps thanks

8 0

3 years ago

Read 2 more answers

What describes the slope and y-intercept of the line for this equation<br> x - 5 = 0

DanielleElmas [232]

Isn’t it 5 or no cuz 5-5=0 that’s easy

3 0

3 years ago

In the game of roulette, a wheel consists of 54 slots numbered 00, 0, 1, 2,..., 54. To play the game, a metal ball is spun a

Gnesinka [82]

Step-by-step explanation:

Consider the provided information.

A wheel consists of 54 slots numbered 00, 0, 1, 2,..., 54

Part A:

The sample space is the slots on which the ball can fall.

Here wheel consists of 54 slots numbered. Thus the sample. So, there are total 56 slots and the sample space is {00, 0, 1, 2,..., 54}

Part B:

There are 56 slots and only one slot marked by 7. There is an equivalent likelihood that it will fall into any of these slots.

Thus, the probability of the metal ball falls into the slot marked 7 is:

P(A) = 1/56 = 0.0178

Hence, the probability of the metal ball falls into the slot marked 7 is 0.0178.

Part C:

The number of odd slots are 1, 3, 5...55.

There are total 27 odd numbers and 56 slots.

Thus, the probability of the ball lands in an “odd” slot is:

P(A) = 27/56 = 0.4821

Hence, the probability of the metal ball falls an “odd” slot is 0.4821.

Part D:

Interpret this probability: 27/56 = 0.4821 …

The probability of the ball will fall on odd slot is around 48.21% or we can say, if we spins the wheel 100 times then ball will land on odd place around 48 times.

5 0

3 years ago