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Answer:

SOLUTION: Explain why the square root of 25 belongs to 4 subsets of the real numbers , but the square root of 5 only belongs to 1 . tell which subsets each belong to and why .

Step-by-step explanation:

The square root of 25 is 5, which  

1. A rational number, since 5 is the ratio of the two integers 5 and 1.

2. An integer since 5 is an element of {...,-3,-2,-1,0,1,2,3,.}  

3. A whole number, since 5 is an element of {0,1,2,3.}

4. A counting number, since 5 is an element of {1,2,3,}

The square root of 5 is only  

1. An irrational number, since it is not the ratio of any two integers.

[It can only be approximated by

this nonrepeating infinite decimal, it goes on forever:

2.2360679774997896964091736687312762354406183596115257...]

Answer:

Step-by-step explanation:

you find r by the nearest integer of the slope to find the answer

Answer: Perimeter of given square:40,Area of given square:100

Perimeter of Dilated square:200

Area of Dilated square: 2500

Step-by-step explanation:

Based on the graph given, the sunflower's growth can be described as being fast in the early growth stage. It then slowed down in the middle growth stage and then levelled out in the late growth stage.

In the early stage of growth, the sunflower grew very fast. This stage can be seen between the time the sunflower was planted and 6 weeks later.

The average growth rate was:

= 200 cm / 6 weeks

= 33.3 cm/week

In the middle stage, the growth rate decreased and this happened between the 6th and 10th weeks. The average growth rate was:

= (250 - 200) / (10 - 6)

= 12.5 cm / week

This growth then levelled out from the 10th week onwards.

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The increase in price (8.20%) is less than the interest she would have paid (12 payments of $7125), it seems that postponing her purchase and saving money was a good trade-off for Dorothy.

The APR (Annual Percentage Rate) for Dave's loan can be calculated

using the formula:

APR = ((Total interest + Service charge) / Principal) * 100

In this case, the total interest is $44.90 and the service charge is $6.40.

The principal is $600. Plugging these values into the formula:

APR = (($44.90 + $6.40) / $600) * 100

Simplifying the equation:

APR = ($51.30 / $600) * 100

APR = 8.55%

For Dorothy, if she bought the dishwasher on credit, the total cost would

be $855.00 after making 12 monthly payments of $7125.

However, if she saved $70.00 a month for one year, she would have

$898.80 in deposits plus interest.

When she goes back to the store, the dishwasher now costs $908.88,

which is an increase of 8.20%.

Since the increase in price (8.20%) is less than the interest she would

have paid (12 payments of $7125), it seems that postponing her purchase

and saving money was a good trade-off for Dorothy.

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Answer:

Step-by-step explanation:

3*7*10*10*10*10*10*10*10

(5+2=7)(since is multiplication you add)

21*\(10^{7}\)=B

2*10*10*10*10*10

4*10*10

(5-2=3)(since is division you subtract)

0.5*\(10^{3}\)=c

Answer:

4

Step-by-step explanation:

lol

Answer:

-42

Step-by-step explanation:

Hope it helps!

Answer:

882-28282=9191

Step-by-step explanation:

The function f(x) = xe^x is concave up on the interval (-∞, -1) and concave down on the interval (-1, ∞).

To determine the intervals on which the function f(x) = xe^x is concave up and concave down, we need to analyze the second derivative of the function.

First, let's find the first and second derivatives of f(x). The first derivative is f'(x) = e^x + xe^x, and the second derivative is f''(x) = 2e^x + xe^x.

To find the intervals of concavity, we need to examine the sign of the second derivative. When f''(x) > 0, the function is concave up, and when f''(x) < 0, the function is concave down.

Analyzing f''(x), we can see that 2e^x is always positive, so the concavity of f(x) depends on the sign of xe^x. When x < -1, xe^x < 0, making the function concave up. When x > -1, xe^x > 0, making the function concave down.

Therefore, f(x) is concave up on the interval (-∞, -1) and concave down on the interval (-1, ∞).

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Each side of cube is 100 cm.

In Maths or in Geometry, a Cube is a solid three-dimensional figure, which has 6 square faces, 8 vertices and 12 edges. It is also said to be a regular hexahedron.

Given that,

Volume of cube = 1 cubic meter

We know that,

1 m = 100 cm

Also  volume of cube = \(a^{3}\)

Then,

Volume of cube = 1000000 cm

                   \(a^{3}\)  = \(100^{3}\)

                   a = 100 cm

Hence, Each side of cube is 100 cm.

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Answer:

A

Step-by-step explanation:

Answer:

Dependent clause

Step-by-step explanation:

Look at the sentence ----> "When you want the report."

Heres a trick that you can use whenever a sentence starts with before, if, since, that, until, what, when, where, who, which, and why etc.

This means that its a dependent clause.

Also another way of why it is a dependent clause is because it doesn't express a complete thought.

In this case you want to know what happens next (curiosity)

Hope this helps!

Answer:

(y+x)+8

it is expressed like that i think

Answer:

(Y+x)+8

Step-by-step explanation:

The graph of g(x) = f(-5x+10) is given in the figure.

A diagram showing the relation between two variable quantities,each measured along one of a pair of axes at right angles.

It is given that f(x) = x^2

and g(x ) = f(-5x+10)

Now putting the value of f(x) in g(x) we get,

g(x)  = f(-5x+10)  = (-5x+10)^2

So, g(x) = (-5x+10)^2

now, making the table for g(x),

x g(x)

0 100

1 81

2 0

3 25

4 100

5 225

Hence,the graph of g(x) = f(-5x+10) is given in the figure.

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Answer:

B) 1/2 - 5d

Step-by-step explanation:

-4d+1/2-d

Rearrange the expression

1/2-4d-d

1/2-5d

3 km is equivalent to 1.86 miles.both are unit of measurement of distance.

To convert kilometers (km) to miles (m), you can use the conversion factor 1 mile = 1.609 kilometers. To convert 3 kilometers to miles, you would multiply 3 by 0.621371, which would give you the answer of 1.86 miles. As the kilometers is commonly used in metric system, while the miles is used in imperial system and is commonly used in the United States,

it's important to always make sure you are using the appropriate unit of measurement for your needs and to convert between units if necessary. Additionally, it's always good to double check your conversions by using a calculator or online conversion tool to ensure accuracy.

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Answer:

63 boquets were sold in the afternoon.

Step-by-step explanation:

Divide 90 by 10 to get 9. Then multiply 9 by 3.

Answer:

23.1 pounds.

Step-by-step explanation:

Multiply 140 by 0.165.

24 is a possible output value if the number of students who perform community service is less than the total number of students in the club.

In this scenario, the total dollar amount earned, E, is a function of the number of members who perform community service, n. It is stated that for each student who does community service, the club earns $5.

1. Is 5 a possible input value?

No, 5 is not a possible input value. The input value, n, represents the number of members who perform community service. In this case, there are 12 students in the club. The possible input values would be 0, 1, 2, 3, ..., up to 12, representing the number of students who participate in community service. Since 5 is not within this range, it is not a possible input value.

2. Is 24 a possible output value?

Yes, 24 is a possible output value. The output value, E, represents the total dollar amount earned by the club. Since each student who performs community service earns $5 for the club, the total dollar amount earned will depend on the number of students who participate. If all 12 students in the club perform community service, the total amount earned would be:

E = $5 * 12 = $60

Therefore, 24 is a possible output value if the number of students who perform community service is less than the total number of students in the club. For example, if only 4 students perform community service, the total amount earned would be:

E = $5 * 4 = $20

In summary, 5 is not a possible input value because it is not within the range of valid inputs representing the number of students who perform community service. However, 24 is a possible output value depending on the number of students who participate, as it is within the range of possible total dollar amounts earned.

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Answer:

b

Step-by-step explanation:

Answer:

c

Step-by-step explanation:

Answer:

6.2

Step-by-step explanation:

ahmm recommend answer lang

Answer:

6.8

Step-by-step explanation:

hope this helped! :)

We can then use the first or second derivative test to determine whether each value represents a local maximum or a local minimum. We can also use the sign of the derivative to determine intervals of increase or decrease.

Find approximate x values for any local maximum or local minimum points. The graph of the function f(x) = x³ - x shows a local maximum point at (-1, 0) and a local minimum point at (0, -1). ii. Set up a table showing intervals of increase or decrease and the slope of the tangent on those intervals. Find approximate x values for any local maximum or local minimum points. The graph of the function f(x) = -(x-3)(x+1)(1-x) shows a local maximum point at (1, 0) and local minimum points at (-1, -4) and (2, -2).ii. Set up a table showing intervals of increase or decrease and the slope of the tangent on those intervals Here is the table showing the intervals of increase or decrease and the slope of the tangent on those intervals

The approximate x values for any local maximum or local minimum points for the given function have been calculated and the table showing intervals of increase or decrease and the slope of the tangent on those intervals has been set up. The table of values showing "x" and its corresponding "slope of tangent" for at least 7 points has been set up. The graph of the derivative using the table of values has also been sketched. To find the local maximum or local minimum points, we calculate the derivative of the function and set it equal to zero. For the given function, the derivative is 3x² - 1. Setting it equal to zero, we get x = ±√(1/3). We can then use the first or second derivative test to determine whether each value represents a local maximum or a local minimum. We can also use the sign of the derivative to determine intervals of increase or decrease.

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Treatment Group:

$\mu = 22, \sigma = 2.30$

Placebo Group:

$\mu = 22, \sigma= 0.77$

Answer:

C

Step-by-step explanation:

Since the denominators are the same, you just need to add 3 + 1. This gives you 4, combining with the denominator, will give you 4/4, which equals 1.  

Answer:

y=1/2x+0

Step-by-step explanation:

Since the slope is 1/2 and it starts at the origin, the b value is 0.

Answer:

1/2x

Step-by-step explanation:

We want to find what we need to mix to get 10 cups of lemonade.

We need to use 2 cups of lemon juice and 8 cups of water to get a total of 10 cups of lemonade.

We know that the lemonade recipe is:

1 cup of lemon juice and 4 cups of water.

This gives us a total of:

1 cup + 4 cups =  5 cups of lemonade.

Then if we want 10 cups of lemonade, we just need to use the double of each one of the ingredients.

this is:

2*(1 cup) = 2 cups of lemon juice

2*(4 cups) = 8 cups of water.

We need to use 2 cups of lemon juice and 8 cups of water to get a total of 10 cups of lemonade.

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Answer:

We need to use 2 cups of lemon juice and 8 cups of water to get a total of 10 cups of lemonade.

The probability that there will be exactly 4 flaws in 1400 feet of cable is 2.39 x 10^-6.

Given that a company produces optical-fiber cable with a mean of 0.7 flaws per 100 feet. To find the probability that there will be exactly 4 flaws in 1400 feet of cable, we have to use the Poisson probability distribution formula.Poisson Probability Distribution Formula:

The probability of x successes in a Poisson experiment is given by:

P(x; λ) = (e-λ λx)/x!

Where,

λ = mean rate of success per unit time or unit area or unit volume.In the given question,

λ = 0.7 flaws per 100 feet = 0.7/100 = 0.007 flaws per feet

Total distance of cable = 1400 feet

Let x = number of flaws in 1400 feet of cable

To find:

P (x = 4), λ = 0.007 and x = 4

Putting the values in the Poisson probability distribution formula:

\(P(x = 4; 0.007) = (e^-0.007 × 0.007^4)/4! = (0.00005736)/24 = 2.39 x 10^-6\)

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The first four terms of the Taylor series for the function (2x) about the point (a=1) are (2x + 2x - 2).

To find the first four terms of the Taylor series for the function (2x) about the point (a = 1), we can use the general formula for the Taylor series expansion:

\(\[f(x) = f(a) + f'(a)(x-a) + \frac{f''(a)}{2!}(x-a)^2 + \frac{f'''(a)}{3!}(x-a)^3 + \ldots\]\)

Let's calculate the first four terms:

Starting with the first term, we substitute

\(\(f(a) = f(1) = 2(1) = 2x\)\)

For the second term, we differentiate (2x) with respect to (x) to get (2), and multiply it by (x-1) to obtain (2(x-1)=2x-2).

\(\(f'(a) = \frac{d}{dx}(2x) = 2\)\)

\(\(f'(a)(x-a) = 2(x-1) = 2x - 2\)\)

Third term: \(\(f''(a) = \frac{d^2}{dx^2}(2x) = 0\)\)

Since the second derivative is zero, the third term is zero.

Fourth term:\(\(f'''(a) = \frac{d^3}{dx^3}(2x) = 0\)\)

Similarly, the fourth term is also zero.

Therefore, the first four terms of the Taylor series for the function (2x) about the point (a = 1) are:

(2x + 2x - 2)

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Answer:

a

Step-by-step explanation:

Marilyn sold approximately 28 raffle tickets this week, representing a 75% increase from the previous week's sales.

To find out how many tickets Marilyn sold this week, we first need to determine the 75% increase from last week's sales. Since Marilyn sold 16 tickets last week, we can calculate the increase by multiplying 16 by 0.75 (75% expressed as a decimal). The result is 12, indicating that Marilyn's ticket sales increased by 12 tickets.

To determine the total number of tickets sold this week, we add the increase of 12 to last week's sales of 16 tickets. This gives us a total of 28 tickets sold this week. Therefore, Marilyn sold approximately 28 raffle tickets this week, representing a 75% increase from the previous week's sales of 16 tickets.

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Answer:

Step-by-step explanation:

Speed = change in distance/change in time

S= Δd/Δt

let d1 = 139.5miles

d2 = 395miles

t1 = 1.5 hrs

t2 = 5hrs

Δd = d2-d1

Δd  = 395-139.5

Δd  = 255.5miles

Δt = 5-1.5

Δt = 3.5hrs

Speed = 255.5/3.5

Speed = 73miles/hr

Hence Kayla's speed is 73miles/hour

Answer:

I guess it's

3(4x+9)

Step-by-step explanation:

for more information watch a video about how to factor binomial