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3 years ago

9

Un terreno cuadrangular mide 1/4 km de un lado y 1/6 km del otro lado. El area es 1/24.

1 answer:

Radda [10]3 years ago

7 0

The answer to this message was because I had to

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The wildlife department has been feeding a special food to rainbow trout fingerlings in a pond. based on a large number of obser

Liono4ka [1.6K]

The normal distribution curve for the problem is shown below

We need to standardise the value X=405.5 by using the formula

$z-score= \frac{X-Mean}{Standard Deviation}$
$z-score= \frac{405.5-402.7}{8.8} =0.32$

We now need to find the probability of z=0.32 by reading the z-table

Note that z-table would give the reading to the left of z-score, so if your aim is to work out the area to the right of a z-score, then you'd need to do:

$P(Z\ \textgreater \ z)=1 - P(Z\ \textless \ z)$

from the z-table, the reading $P(Z\ \textless \ 0.32)$ gives 0.6255

hence,
$P(Z\ \textgreater \ 0.32)=1-0.6255=0.3475$

The probability that the mean weight for a sample of 40 trout exceeds 405.5 gram is 0.3475 = 34.75%

7 0

3 years ago

I need to find the image coordinates of the pre-image using reflection, and it has to be reflected over the line x=2. How do I s

Sladkaya [172]

The answer would be ( x+1, y+4)...... Hope this helps

5 0

3 years ago

What’s the correct answer

s344n2d4d5 [400]

Substituting m for 9

h(9) = 9^2 - 3*9

h(9) = 81 -27

h(9) = 54

Third option!

4 0

4 years ago

Read 2 more answers

Question 7 <br> Show the work please

Katena32 [7]

To acquire a given product. Insofar as the amount people are prepared to pay for a product represents its value, price is also a measure of value.

5 0

3 years ago

Read 2 more answers

In 1 1/2 hours, Sebastian can walk 4 1/2 miles.<br> What is his average speed in hours per mile?

jeka94

Answer:

The average speed of Sebastian is 3 miles per hour.

<u>Solution:</u>

Given, In $1 \frac{1}{2}$ hours, Sebastian can walk 4 1/2 miles.

we have to find What is his average speed in hours per mile

We know that, average speed $=\frac{\text {total distance walked}}{\text {total time taken}}$

In our problem, total distance travelled = $4 \frac{1}{2} \text { miles }=\frac{4 \times 2+1}{2} \text { miles }=\frac{9}{2} \text { miles. }$

$\text { And, total time taken }=1 \frac{1}{2} \text { hours }=\frac{1 \times 2+1}{2} \text { hours }=\frac{3}{2} \text { miles. }$

Now, average speed of Sebastian $=\frac{\frac{9}{2}}{\frac{3}{2}}=\frac{9}{2} \times \frac{2}{3}=\frac{9}{3}=3$

Hence, the average speed of Sebastian is 3 miles per hour.

4 0

4 years ago