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3 years ago

A circular lawn has a row of bricks around the edge. The diameter of the lawn is about 40 feet.

Mathematics

2 answers:

Murrr4er [49]3 years ago

7 0

Answer:

1250

Step-by-step explanation:

please tell me if I am incorrect

sergeinik [125]3 years ago

4 0

1250 it is by my calculations

You might be interested in

Which statement is true about the function f(x)= Vx?

saveliy_v [14]

Answer:

The statement "the range of the graph is all real numbers greater than or equal to 0" is true.

Step-by-step explanation:

As the function is given by

As we know that the domain is the set of all possible input values or all x -values that a function passes through. In other words, domain consists of all the possible input values shown on the x-axis.

Range is the set of all y-values that a function passes through. In other words, range consists of all the possible output values shown on the y-axis.

For the given function

The domain of the given function

The domain of can also be written as: {x | x ≥ 0}

It means the domain of the graph of this function is all real number greater than or equal to 0.

The domain of the graph of this function can not be less than zero, because if we put any negative real number in this function, it would make the the function undefined.

Please check the attached graph as shown in figure a, to visualize the domain and range of

From the graph.

it is visible that the range of the given function

The range of can also be written as: {y | y ≥ 0}

In other words, for every input value in the domain of this function, the range of will be all real numbers greater than or equal to 0. Please see the attached graph as shown in figure a.

So, from the entire discussion, we can safely say that the statement "the range of the graph is all real numbers greater than or equal to 0" is true.

4 0

3 years ago

I need help with this one

artcher [175]

Answer:

r = I/P*t

Step-by-step explanation:

So I dont know how to explain it but to show you how to do it.

I = Prt

Divide both sides by Pt to get r alone

$\frac{I}{Pt} = r$

Therefore your answer is r = I/P*t

Hopes this help :)

8 0

3 years ago

50 pts!!!! Luciana's laptop has 3,000 pictures. The size of the pictures is skewed to the right, with a mean of 3.7MB and a stan

skelet666 [1.2K]

Answer:

Part A: No, you cannot.

Part B: 0.4491

Explanation:

Part A:

The mean of samples of symmetrical (bell shaped) distributions follow a normal distribution pattern.

Thus, for symmetrical distributions you can use the z-score tables to make calculations that permit calculate probabilities for particular values.

For skewed distributions, in general, the samples do not follow a normal distribution pattern, except that the samples are large.

Since a sample of 20 pictures is not large enough, the answer to this question is negative: you cannot accurately calculate the probability that the mean picture size is more than 3.8MB for an SRS (skewed right sample) of 20 pictures.

Part B.

For large samples, the Central Limit Theorem will let you work with samples from skewed distributions.

Although the distribution of a population is skewed, the Central Limit Theorem states that large samples follow a normal distribution shape.

It is accepted that samples of 30 data is large enough to use the Central Limit Theorem.

Hence, you can use the z-core tables for standard normal distributions to calculate the probabilities for a random sample of 60 pictures instead of 20.

The z-score is calculated with the formula:

z-score = (value - mean/ (standard deviation).

$z=(x-\mu )/\sigma$

Here, mean = 3.7MB, value = 3.8MB, and standard deviation = 0.78MB.

Thus:

$z=(3.7M-3.8MB)/(0.78MB)=-0.128$

Then, you must use the z-score table to find the probability that the z-score is greater than - 0.128.

There are tables that show the cumulative probability in the right end and tables that show the cumulative probability in the left end of a normal standard distribution .

The probability that a z-score is greater than -0.128 is taken directly from a table with the cumulative probability in the left end. It is 0.4491.

4 0

3 years ago

How do you figure out the ratio stars to squares when there are 11 squares 5 stars and two circles in the data?

dedylja [7]

Ignore the circles. The ratio of stars to squares is simply 5 to 11 .

6 0

3 years ago

What is the volume of this sphere? use 3.14 for pi and round to the nearest hundredth when necessary.

Harrizon [31]

The volume of the sphere is 900 cm³

Step-by-step explanation:

Step 1: Given the diameter of the ball = 12 cm. Find radius.

Radius = diameter/2 = 12/2 = 6cm

Use the formula for volume of a sphere to find the volume.

Volume of the ball = 4/3 πr³

= 4/3 × 3.14 × (6)³

= 904.32 cm³ ≈ 900 cm³ (nearest hundredth)

4 0

3 years ago