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3 years ago

(hw#41 q#10) help asap

Mathematics

1 answer:

dusya [7]3 years ago

6 0

Answer:

14x+49z+7

Step-by-step explanation:

im smart

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A typist can type 4800 words per hour. How many words can she type in 1 minute?

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Answer: 80

1 hour= 60mins

So to know how many words can she type in 1 min, we do the math "4800 : 60"

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3 years ago

Which statement reveals Kamkwamba’s ability to overcome obstacles? He didn’t care about getting an education and chose to leave

Pani-rosa [81]

Answer:

Step-by-step explanation:

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3 years ago

Read 2 more answers

The average diameter of sand dollars on a certain island is 4.00 centimeters with a standard deviation of 0.60 centimeters. If 1

blagie [28]

Answer:

0.8413 is the required probability.

Step-by-step explanation:

We are given the following information in the question:

Mean, μ = 4.00 centimeters

Standard Deviation, σ = 0.60 centimeters

Sample size, n = 16

We are given that the distribution of average diameter is a bell shaped distribution that is a normal distribution.

Formula:

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

Standard error due to sampling =

$=\dfrac{\sigma}{\sqrt{n}} = \dfrac{0.60}{\sqrt{16}} = 0.15$

P(diameter of sample is more than 3.85 centimeter)

P(x > 3.85)

$P( x > 3.85) = P( z > \displaystyle\frac{3.85 - 4}{0.15}) = P(z > -1)$

$= 1 - P(z \leq -1)$

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

$P(x > 3.85) = 1 -0.1587 = 0.8413$

0.8413 is the probability that the the average diameter of sample of 16 sand dollars is more than 3.85 centimeters.

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3 years ago

Y=3x+22 <br> x is equal to 225

Svetach [21]

9514 1404 393

Answer:

y = 697

Step-by-step explanation:

Put the value of x into the equation and do the arithmetic.

y = 3·225 +22 = 675 +22

y = 697

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3 years ago

(08.07A LC)

shtirl [24]

Answer:

Step-by-step explanation:

you would do the total which is 45-20

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3 years ago