The distance to the moon is 238,900 miles. How is this expressed in scientific notation?

a. .00238 X 10^5

b. 2.389 x 10^5

c. 2.3 X 105

d. 2.389 x 10-5

The mean of this probability distribution is 1.55.

To find the mean of a probability distribution, we need to multiply each possible value by its corresponding probability, and then add up these products. So, the mean is:

mean = (0)(0.19) + (1)(0.37) + (2)(0.16) + (3)(0.26) + (4)(0.02)
    = 0 + 0.37 + 0.32 + 0.78 + 0.08
    = 1.55

Therefore, the mean of this probability distribution is 1.55.

To learn more about probability here:

brainly.com/question/30034780#

#SPJ11

Answer:

2(x-10)+4=-6x+2

2x-20+4= -6x+2

2x-16=-6x+2

2x+6x=2+16

8x=18

x=18/8

x=9/4

The value of a home increases by 7%each year, by compounding the value of the home doubles approximately once each decade.

Compounding is a process where the interest is credited to the initial amount and interest, on the whole, is charged again. and this continues for t period of time.

It is given by the formula,

A=P(1+r)^t

where A is the value after t period of time,

P is the value of the asset at the beginning, and,

r is the rate of interest.

The value of the home doubles once each decade.

Given to us

The value of a home increases by 7% each year.

As it is given that the value of a home increases by 7% each year, therefore, the value of the home is compounding every year.

We know the formula of compounding,

A=P(1+r)^t

Why does the value doubles?

Now, let's assume a house whose value is 'P' today, therefore, substitute the value of the house in the formula of compounding,

A=P(1+r)^t

Substitute the rate at which the value is increasing,

A=P(1+0.07)^t

We know that in a decade there are 10 years,

A=P(1+0.07)^10=P(1.07)^10

=1.967P

Approximately

=2P

As we can see that the value of the home is almost 2 times the 'P' therefore, twice the value of the home at the beginning.

Hence, the value of the home doubles once each decade.

To Learn more about Compounding:

https//brainly.com/question/25857212

#SPJ1

Given expression is  \(x⁵/⁹\).

Recall to write the nth root of a number, we have to type root(n).

For example, to get\(³√4x\), type "\(root(3)(4x)\)".

We can write the expression x⁵/⁹ as follows:

\($$\frac{x^5}{9}$$\)

Let's rewrite the expression as:

\($$\frac{x}{\sqrt[9]{9}}^5$$\)

Let's write the nth root of a number by typing root(n).

Therefore, the final answer becomes:

\($$\frac{x}{root(9)(9)}^5$$\)

Therefore, the given expression in radical form is   \(\frac{x}{root(9)(9)}^5\)

To know more about expression visit :

https://brainly.com/question/28170201

#SPJ11

Answer:

No, correlation does not imply causation.

Causation cannot be proven because weight loss can occur for other reasons, such as exercise and eating healthy

Step-by-step explanation:

Even though the study shows a strong correlation between eating breakfast and weight loss, the study does not show a cause-and-effect relationship between those two variables.

Correlation indicates that the rates of weight loss and eating breakfast showed similar values over time, but, in this experiment, causation cannot be proven because weight loss can occur for other reasons, such as exercise and eating healthy.

Answer:

No. Causation cannot be proven because weight loss can occur for other reasons, such as exercise and eating healthy.

Step-by-step explanation:

Similar question on my exam, got it correct!

Hope this helps! ◎[▪‿▪]◎

Answer:

No solution

Step-by-step explanation:

2 - 14 - 7 = -4

-12 - 7 = -4

-19 = -4

a) Based on division operations, the number of ketchup bottles that the restaurant requires to make 40 pounds of ketchup in 32 ounces ketchup bottles is 21.

b) Using mathematical operations, the total weight of the bag of potatoes that weighs 5 pounds and a box of rice that weighs 32 ounces in ounces is 112 ounces.

c) If a slice of bread weighs 1 oz and there are 32 slices in a large loaf, the weight of 10 loaves in pounds is 20 lb.

d) If an average egg weighs about 2 oz, the weight of two dozen eggs in pounds will be 3 pounds.

The various numbers and weights are determined using the mathematical operations of addition, division, and multiplication.

a) The pounds of ketchup available = 40 pounds

The content of each ketchup bottle = 30 ounces

1 lb = 16 oz

40 pounds = 640 oz

The number of ketchup bottles required = 21 (640/30)

b) The total weight of a bag of potatoes = 5 pounds

The total weight of a box of rice = 32 ounces

1 lb = 16 oz

5 pounds = 80 oz (5 x 16)

The total weight of the potatoes and rice = 112 ounces (80 + 32)

c) The weight of a slice of bread = 1 oz

The number of slices in a large loaf = 32

The number of loaves = 10

The total weight of the 10 loaves = 320 ounces (1 x 32 x 10)

1 lb = 16 oz

Weight in pounds = 20 pounds (320/16)

d) The weight of an average egg = 2 oz

The number of two dozen eggs = 24 (2 x 12)

The weight of the two dozen eggs = 48 oz (2 x 24)

1 lb = 16 oz

Weight in pounds = 3 lb (48/16)

Learn more about mathematical operations at https://brainly.com/question/20628271

#SPJ1

Answer:

f(x) = x + 3

Step-by-step explanation:

If you have any questions about the way I solved it, don't hesitate to ask me in the comments ;)

And if you find this answer helpful, then consider marking it Brainliest

Answer:

its f(x) = x + 3

Step-by-step explanation:

i got a 100 on the quiz

Answer:

The ratio of the area of the rectangle to the area of the square is 0.75.

Step-by-step explanation:

The areas of the square and the rectangle are represented by following formulas:

\(A_{sq} = l^{2}\) (1)

\(A_{re} = (1.5\cdot l)\cdot (0.5\cdot l)\)  (2)

Where \(l\) is the side length of the square.

The ratio of the area of the rectangle to the area of the square is:

\(\frac{A_{re}}{A_{sq}} = \frac{(1.5\cdot l)\cdot (0.5\cdot l)}{l^{2}}\)

\(\frac{A_{re}}{A_{sq}} = 0.75\)

The ratio of the area of the rectangle to the area of the square is 0.75.

Answer:

Step-by-step explanation:

The loop will run an infinite number of times

Answer:

-51

Step-by-step explanation:

f(x) = -8x+20

5 - 2 * f(-1)

First find f(-1)

f(-1) = -8*-1+20 = 8+20 = 28

Then

5 - 2 * 28

5 - 56

-51

Answer: 50 km

Step-by-step explanation: So the map has a scale of 1 cm: 20 km. Next, you look at how far they are apart and see if the scale and the distance on the map are the same measurement. In this case, they are both centimeters so they stay the same. Then, all you do is multiple the real size, 20 km, by  

2.5 /1 . Then, 20 x 2.5=50. So the answer is 50 km

Answer:

1 hour

Because 3 - 2  = 1.

Therefore, 1 hour only.

Answer:

555.36

Step-by-step explanation:

5.34 times 104 = 555.36

Hope this helps! :D

Step-by-step explanation:

0.4+0.3=0.7

3-0.7

=2.3%

mark me brainliest pls!!

Answer:

2

General Formulas and Concepts:

Algebra I

Step-by-step explanation:

The leading coefficient will always be the number multiplied to the highest degree variable.

Our highest degree term is 2x. Our leading coefficient would then be 2.

Answer:

2

Step-by-step explanation:

because i am big brain

Answer:

x = 7

Step-by-step explanation:

The larger triangle is twice as big as the smaller triangle. Therefore, the length of the side EF is twice as large as the side YZ.

I multiplied 4.5 (the length of YZ) and 2 to get 9. The value of side EF is 3x-12 and should be equivalent to 9.

3x - 12 = 9

I solved this equation by adding 12 to both sides and dividing 3 on both sides.

The value of x is 7.

Answer:

explination...

Step-by-step explanation:

so from how i’m understanding it, it would be 12(90) + 20(121).

so 12 x 90 is 1080. so that’s already a good amt, but then 20 x 121 is 2420. now if we add those together,

2420

+1080

-————

3500

so instead of there being more money than she spent, she actually gets the same amount back. so just rearange what’s you out to make sense in a way that matches the problem and you should be good (that was saying it nicely sorry if that seemed rude haha)

Answer:

180*-90*=90*

Step-by-step explanation:

I think it would be 90*

Answer:

5x+4x=180(Being parallel lines)

9x=180

x=180/9

x=20

Approximately 11.5% of the racers did not complete the marathon.

Step-by-step explanation:

To find the percentage of racers who did not complete the marathon, we need to add the number of racers who gave up and were disqualified:

28 + 11 = 39

So, out of the 340 racers who started the marathon, 39 did not complete it.

To find the percentage, we can use the formula:

percentage = (part/whole) x 100

In this case, the "part" is 39 and the "whole" is 340.

percentage = (39/340) x 100

percentage = 11.5

Rounding to the nearest tenth of a percent, we get:

percentage = 11.5%

Therefore, approximately 11.5% of the racers did not complete the marathon.

To learn more about  approximately  visit:  https://brainly.com/question/30707441

#SPJ11

To summarize a metric variable, the most commonly used measures are mean, range, and standard deviation. The mean is the average value of all the observations in the dataset, while the range is the difference between the maximum and minimum values.

Standard deviation measures the amount of variation or dispersion from the mean. Alternatively, mode, range, and standard deviation can also be used to summarize metric variables. The mode is the value that occurs most frequently in the dataset. It is not always a suitable measure for metric variables as it only provides information on the most frequently occurring value. Range and standard deviation can be used to provide more information on the spread of the data. In summary, mean, range and standard deviation are the most commonly used measures to summarize metric variables.

To learn more about metric variable, visit:

https://brainly.com/question/31748164

#SPJ11

Step-by-step explanation:

Radius = 4 cm  then diameter = 8 cm

 circumference = pi * diameter = 8 pi = ~ 25.12 cm

Answer:

b. To find the probability a customer who ordered pancakes came to thediner late, we need to look at the intersection of the "pancakes" row and the "late" column. This gives us a probability of 0.1, or 10%

c. To determine whether breakfast choice and meal time are independent, we need to see if the probability of one event changes based on the occurrence of the other event. In this case, it seems that breakfast choice and meal time are not independent, as the probability of being late seems to differ based on what breakfast item the customer chose. For example, the probability of being late is higher for customers who ordered pancakes compared to those who ordered cereal. Therefore, the choice of breakfast item appears to be related to the probability of being late, and so breakfast choice and meal time are not independent.

Step-by-step explanation:

Answer:

$916.50

$3,783.50

Step-by-step explanation:

down payment:

4700 x .195 = $916.50

still owed:

4700 - 916.5 = $3,783.50

Answer:

3 pears each

Step-by-step explanation:

3 bags of pears

5 pears in each

1=5

2=5

3=5

thats 15 pears

15/4=3.75 (so its just 3)

The number of pears each friend get will be 3.75 pears for each friend.

The analysis of mathematical representations is algebra, and the handling of those symbols is logic.

It is also known as the product. If the object n is given to m times then we just simply multiply them.

Jen has 3 bags of pears. Each bag has 5 pears. Then the total number of the pears will be given by the multiplication of the numbers 3 and 5.

Total pears = 3 x 5

Total pears = 15 pears

If Jen gives the same number of pears to 4 friends.

Then the number of pears each friend gets will be

⇒ 15 / 4

⇒ 3.75 pears for each friend

Thus, the number of pears each friend get will be 3.75 pears for each friend.

More about the Algebra link is given below.

https://brainly.com/question/953809

#SPJ2

Answer:

y = 5x + 3

if:

x = 1, then y = 8

x = 2, then y = 13

x = 3, then y = 18

x = n, then y = 5n + 3

Step-by-step explanation:

if:

x = 1, then y = 8

x = 2, then y = 13

x = 3, then y = 18

x = n, then y = 5n + 3

Answer:

a

Step-by-step explanation:

Don't even need to complete the square, just look at what two numbers when foiling gives -16x. (x-8) (x-8)= -8x-8x= -16x. full equation is x^2-16x+64 but question didnt ask 4 that, wish it did.

In order to transform linear regression into polynomial regression, certain polynomial terms are added to it due to the non-linear relationship between the dependent and independent variables.

Let's say we have independent data X and dependent data Y. In the preprocessing stage, we turn the input variables into polynomial terms to some extent before feeding the data to a mode.

As a specific example of multiple linear regression, polynomial regression is a type of linear regression that estimates the connection as an nth degree polynomial. The performance can also be negatively impacted by the existence of one or two outliers since Polynomial Regression is sensitive to outliers.

The connection between the dependent and independent variables is best approximated by polynomial. It may be used for a wide range of functions. In general, polynomial suits a large range of curvature.

To learn more about this visit, polynomial regression  https://brainly.com/question/16277556

#SPJ9