3 years ago

HELP ASAP!! HELP FAST!!

Mathematics

1 answer:

erma4kov [3.2K]3 years ago

8 0

The perfect square is answer A

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Evaluate the expression when x = 3 and y = 5 6y/x

kondaur [170]

If x=3 and y=5 then you just substitute.
6(5)/3
30/3
=10
10 is your answer.

5 0

3 years ago

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PLEASE HELP IT IS 3:30 AM

Nataly_w [17]

Answer:

The answer is y = -1/3x + 5 !

Step-by-step explanation:

If you observe the line, the y-intercept is 5, from the point in the graph (0,5). From that point, we can see that the rise over run is -1/3. Thus, y = -1/3x + 5.

8 0

3 years ago

Please take a look at the picture

Debora [2.8K]

$\tiny \text{yes \: looked}$

7 0

3 years ago

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Plzz help and no wrong answer need to be done asap

Ann [662]

Answer:

1/500

Step-by-step explanation:

7 0

2 years ago

How much difference do a couple of weeks make for birth weight? Late-preterm babies are born with 34 to 36 completed weeks of ge

stiks02 [169]

Answer:

a) 0.3277

b) 0.0128

Step-by-step explanation:

We are given the following information in the question:

N(2750, 560).

Mean, μ = 2750

Standard Deviation, σ = 560

We are given that the distribution of distribution of birth weights is a bell shaped distribution that is a normal distribution.

Formula:

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

a) P (less than 2500 grams)

P(x < 2500)

$P( x < 2500) = P( z < \displaystyle\frac{2500 - 2750}{560}) = P(z < -0.4464)$

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

$P(x < 2500) = P(z < -0.4464) = 0.3277 = 32.77\%$

b) P ((less than 1500 grams)

P(x < 1500)

$P( x < 1500) = P( z < \displaystyle\frac{1500 - 2750}{560}) = P(z < -2.2321)$

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

$P(x < 1500) = P(z < -2.2321) = 0.0128 = 1.28\%$

3 0

3 years ago