All categories

2 years ago

Could anyone find the answer for this?

Mathematics

2 answers:

lakkis [162]2 years ago

8 0

Answer:

63cm

3 x 21 = 63

expeople1 [14]2 years ago

6 0

Answer: 63 cm

Step-by-step explanation: For every one cm deep, there is a further scale of 21 cm more. If the pond is 3 cm deep, then the scale would be 21 * 3, which is equivalent to 63.

You might be interested in

Explain how you can use model to find 6x17

Karo-lina-s [1.5K]

You can use lattice multiplication or long multiplication. for examples and/or visuals message me.

8 0

3 years ago

Read 2 more answers

A test score of 48.4 on a test having a mean of 66 and a standard deviation of 11. Find the z-score corresponding to the given

Mariulka [41]

Answer:

A. -1.6; not significant

Step-by-step explanation:

The z-score of a data set that is normally distributed with a mean of $\bar x$ and a standard deviation of $\sigma$ , is given by:

$z=\frac{x-\bar x}{\sigma}$ .

From the question, the test score is: $x=48.4$ , the mean is $\bar x=66$ , and the standard deviation is $\sigma =11$ .

We just have to plug these values into the above formula to obtain:

$z=\frac{48.4-66}{11}$ .

This simplifies to: $z=\frac{-17.6}{11}$ .

$z=-1.6$ .

We can see that the z-score falls within two standard deviations of the mean.

Since $-2\le-1.6\le2$ the value is not significant.

The correct answer is A. -1.6; not significant

3 0

3 years ago

According to of Plymouth plantation what was the pilgrim’s opinion of Cape Cod in the first weeks after landing

Makovka662 [10]

They thought it was depleted, fruitless and unfertile.

Hope it helps :)

6 0

3 years ago

The fastest time for completing an obstacle course is 218 seconds. Artest completed the first half of the course in 95 seconds.

Anon25 [30]

Answer:

219 Seconds ; He was 1 second faster

Step-by-step explanation:

Two halfs equal one whole, meaning both of the times added will equal the full time he took:

95+124=219

219 Seconds

He was 1 second faster because:

219-218=1

8 0

3 years ago

What is the equation of a line which includes points (-5, 5) and (2, 5)?

sveta [45]

<h2>Hello!</h2>

The answer is:

The equation of the line which includes the points (-5,5) and (2,5) is:

$y=5$

To find the line which includes the points (-5,5) and (2,5) we can use the following equation:

$y-y_1=\frac{y_2-y_1}{x_2-x_1}*(x-x_1)$

So, using the points (-5,5) and (2,5), we have:

$y-5=\frac{5-5}{2-(-5)}*(x-(-5))$

$y-5=\frac{0}{2+5}*(x-(-5))$

$y-5=0*(x+5)$

$y-5=0$

$y=5$

We have that the equation of the line which includes the points (-5,5) and (2,5) is:

$y=5$

Have a nice day!

Note: I have attached a picture for better understanding.

8 0

3 years ago