The probability of obtaining a head when a certain coin is flipped is about 0.65 Whi ch of the following is closest to the probability that heads would be obtained 15 or fewer times when this coin is flipped 25 times? A. 0.14 B. 0.37 0.39 0.60 0.65

Answer:

a)     H(-x) = 4x⁴ + 5x³ +2x² + x + 5

b)     0 sign changes

c)      0 negative real solutions

d)     4 imaginary solutions

Step-by-step explanation:

a) Replace every x with (-x) and rewrite the function below

    H(x) = 4x⁴ - 5x³ + 2x² - x + 5

    H(-x) = 4(-x)⁴ - 5(-x)³ + 2(-x)² - (-x) + 5

    H(-x) = 4x⁴ + 5x³ +2x² + x + 5

b) How many sign changes are there in this new function?

0 (zero) sign changes in the new function (terms 5x³ and x)

c) How many negative real roots are possible?

0 (zero) negative real solutions possible.

d) How many possible complex roots are there?

There are 4 or 2 or 0 positive roots for the function and 4 total roots for this function; Given the degree of the function is also 4, there can be 0 or 2 or 4 complex roots for the function. If you were to graph H(x), you would see that the function never touches or crosses the x-axis. Therefore, the function has 4 imaginary roots and no real roots.

Answer:

n<6

Step-by-step explanation:

Answer:

(5)(8)(14)

Step-by-step explanation:

Answer:

69x+11

Step-by-step explanation:

Answer: D

Step-by-step explanation:

The answer is (i) and (ii). In the first graph, as x approaches very large values such as infinity, the y-value will also approach infinity. In the second graph, as x approaches infinity, the y-value again approaches infinity.

On the contrary, the third graph approaches large negative values as x increases. It approaches negative infinity.

The functions have the same end behavior as x increases will be Graph first and second , so the correct option is D

The end behavior of a function refers to the behavior of the function as x approaches positive or negative infinity.

To determine which functions have the same end behavior as x increases, we need to analyze the behavior of each function as x approaches positive infinity.

we can see that the first graph, as x approaches very large values such as infinity, the y-value will also approach infinity.

Also the second graph shows that as x approaches infinity, the y-value again approaches infinity.

Then the third graph approaches large negative values as x increases. It approaches negative infinity.

Therefore, the answer is (i) and (ii).

Learn more about graphing functions here:

https://brainly.com/question/14455421

#SPJ3

Answer:

8 - (2/x

hope it is helpful

Answer:

721 hours

Step-by-step explanation:

Skills needed: Multiplication, Logical Reasoning

1) First, we need to gather information:

--> November has 30 days

--> There are 24 hours in each day

2) This means that there are:

\(24 * 30\)  = 720 days in November without counting daylight savings.

3) With daylight savings:

--> We add one extra hour, since we go one hour back. So that day, 1:59 would go back to 1:00, with an extra hour.  So we add one to the total. \(720 + 1 = 721\) is your answer

Hope this helps and have a nice day! :) :}

Answer:

y=3*(-2)                                      

y=--(3*2)

y=-6

 y=-6

y=0x-6

y=0x+(-6)

y=0x+(-6),m=0

y=0x+(-6),m=0,b=-6

m=0,b=-6

  y=3x(-2)

Let x be the domain values.

Let x = -1

y = 3(-1) - 2

y = -6 - 2

y = -8...range

Our first ordered pair is (-1, -8).

Let x = 2

y = 3(2) - 2

y = 6 - 2

y = 4...range

Our second ordered pair is (2, 4).

Let x = 4

y = 3(4) - 2

y = 12 - 2

y = 10...range

Our third ordered pair is (4, 10).

Done.

We're given:

To find the area of the garden alone, we can subtract the area of the garden from the combined area of the garden and walkway:

\(4.5(8x + 4)-4(5.5x + 1.5)\)

Open up the parentheses:

\(= 36x +18 -22x - 6\)

Combine like terms:

\(= 36x +18 -22x - 6\\= 14x +18 - 6\\= 14x +12\)

The area of the walkway around the garden is 14x + 12.

Answer:

vertical asymptote X=-1

horizontal asymptote Y=2

Step-by-step explanation:

The vertical and the horizontal asymptotes of the function \(f(x) = \frac{2x^2 +7x - 4}{x^2 + 5x + 4}\) are x = -1, and y = 2

The function is given as:

\(f(x) = \frac{2x^2 +7x - 4}{x^2 + 5x + 4}\)

To start with, we plot the graph of f(x)

The asymptotes are the lines that pass through the points that appears to be on the curve because of their nearness to the curve, but they are actually not on the curve of the function.

From the graph (see attachment), we can see that:

The vertical and the horizontal asymptotes are x = -1, and y = 2

Read more about asymptotes at:

https://brainly.com/question/8493280

Answer:

Supplementary Angles

x = 62

Step-by-step explanation:

Supplementary angles equal 180.

180 - 118 = 62

I hope this helps!

Answer:

5 Gallons of paint

Step-by-step explanation:

840 square ft one Gallons covers 190 square ft

Answer:

Step-by-step explanation:

(x - 5)(x + 6) = x *(x + 6) - 5*(x + 6)

                   =x * x + 6 *x + x*(-5) + 6*(-5)

                    = x² + 6x - 5x - 30    {Combine like terms}

                    = x²  + x - 30

Answer:

36.897

Step-by-step explanation:

Answer:

Month 5

Step-by-step explanation:

Given:

The value of x = 2.

Solution:

F ( x ) = 2x⁴ - x³ + 5x - 9

=> 2 ( 2 )⁴ - ( 2 )³ + 5 × 2 - 9

=> 2 × 16 - 8 + 10 - 9

=> 32 - 8 + 10 - 9

=> 24 + 1

=> 25

A. 25

Answer:

true

Step-by-step explanation:

The answer to the question is "a. Qualitative-Nominal". The musical instrument played by a music student is a nominal type of data. Nominal data is used to label variables without providing any quantitative value, thus the name.

The musical instrument played by a music student is a nominal type of data. Nominal data is used to label variables without providing any quantitative value, thus the name. Nominal data is different from ordinal data and quantitative data in that nominal data does not have a quantitative value or order. The term nominal comes from the Latin word nomen which means name. It is used to categorize and differentiate between different things, but it does not provide any quantitative value. The answer to the question is "a. Qualitative-Nominal". Musical instruments are not measured or counted. Instead, they are simply identified by their name. As a result, they are nominal data types. An instrument can be any object that is used to create music. A musical instrument is a type of instrument that is used to create sound, usually by manipulating strings, blowing air, or striking an object. These instruments include pianos, guitars, violins, drums, and so on. To conclude, the musical instrument played by a music student is nominal data. Nominal data is used to label variables without providing any quantitative value.

To know more about musical instrument visit: https://brainly.com/question/16191430

#SPJ11

Answer:

k < 9/8

Step-by-step explanation:

let me know if you want an explanation :))

(a) Is this an observational study or an experiment?

ans=Observational study – no treatment was imposed

(b) What are the explanatory and response variables?

ans=explanatory – time spent in child care from birth to age 4 response – adult rating of children’s behavior

d) Does this study show that child care causes children to be more aggressive? Explain.

No. Observational studies cannot show cause-and-effect

Researchers=someone whose job is to study a subject carefully, especially in order to discover new information or understand the subject better: She is a leading researcher in the field.

learn more about researcher here

https://brainly.com/question/25257437

#SPJ4

The total materials cost before sales tax is $297.21.

The total materials cost is the result of the addition of the total cost of posts, wire mesh, gate, and staples, as follows.

The length of the rectangular space = 6 meters

The width of the space = 10.5 meters'

The perimeter of the space = 33 meters [2(6 + 10.5)]

The space between posts = 1.5 meters

The number of posts = 22 (33 ÷ 1.5)

The cost per post = $2.69

a) The cost of the posts = $59.18 ($2.69 x 22)

The cost of wire mesh:

Cost per meter = $5.96

The number of meters of wire mesh = 33 meters

b) Total cost of the wire mesh = $196.68 ($5.96 x 33)

c) Cost of the gate = $25.39

Cost of Staples:

The number of staples per post = 7

The total number of staples required = 154 (22 x 7)

The number of boxes of staples = 4

The cost per box = $3.99

d) The total cost of staples = $15.96 (4 x $3.99)

The total cost of materials = $297.21 ($59.18 + $196.68 + $25.39 + $15.96)

Learn more about determining the total costs at https://brainly.com/question/25109150.

#SPJ4

a) The variance of the population is equal to the square of the standard deviation. So, the variance of the population is (39)^2 = 1521.

b) The variance of Xtot is equal to the product of the variance of the population and the sample size. Since the sample size is 30, the variance of Xtot is 1521 * 30 = 45,630.

c) The standard deviation of Xtot is the square root of its variance. So, the standard deviation of Xtot is √(45,630) ≈ 213.869.

d) The variance of Xbar is equal to the variance of the population divided by the sample size. So, the variance of Xbar is 1521/30 ≈ 50.7.

e) The standard deviation of Xbar is the square root of its variance. So, the standard deviation of Xbar is √(50.7) ≈ 7.120.

f) To make the standard deviation of Xtot at least 900, we need to solve the following inequality:

45,630 ≥ 810,000

Since this inequality is not satisfied, there is no sample size that will make the standard deviation of Xtot at least 900.

g) To make the variance of Xtot at least 90,000, we need to solve the following inequality:

Variance of Xtot ≥ 90,000

45,630 ≥ 90,000

Since this inequality is not satisfied, there is no sample size that will make the variance of Xtot at least 90,000.

learn more about variance here:

https://brainly.com/question/31432390

#SPJ11

The price elasticity of demand at any point on a demand curve with a slope equal to negative 1 is C greater than 1, but less than infinite. This is because price elasticity of demand measures the percentage change in quantity demanded in response to a percentage change in price.

The price elasticity of demand at any point on a demand curve with a slope equal to negative 1 would be C) greater than 1, but less than infinite. This is because a slope of negative 1 indicates that for every one unit increase in price, there is a one unit decrease in quantity demanded. This means that the demand curve is relatively steep, indicating that small changes in price will result in larger changes in quantity demanded. Therefore, the price elasticity of demand would be greater than 1, but not infinite, as there is still some level of responsiveness to price changes.

When the elasticity is greater than 1, it indicates elastic demand, where the quantity demanded is highly responsive to price changes.

To know more about price elasticity visit:-

https://brainly.com/question/13691796

#SPJ11

Answer:

it is your test we can't help you sorry

Answer; the  Negative of 12 is -12

Step-by-step explanation: first of all the reciprocal of 12 is 1 over 12. so that's not it. The absolute value of 12 is still 12 so that's not it. So the only thing that it can be is the Negative of 12 is -12  

Answer:

A

Step-by-step explanation:

It's A because she subtracted a negative and that only make a bigger negative where she should have added

Answer:

36 meters

Step-by-step explanation:

False. The statement is incorrect. Unlike the z distribution, the t-distribution is not symmetric around 0, and its tails do not approach the horizontal axis and cross it.

The t-distribution is similar to the normal (z) distribution in the sense that it is bell-shaped. However, there are important differences. The t-distribution is not symmetric around 0 but is centered at 0. It has a shape that depends on its degrees of freedom (df). As the degrees of freedom increase, the t-distribution approaches the shape of the standard normal distribution (z-distribution).

The tails of the t-distribution are thicker than the tails of the z-distribution. The t-distribution has more probability in the tails, which means it has more extreme values compared to the z-distribution. As the degrees of freedom increase, the t-distribution approaches the normal distribution, and its tails become closer to the horizontal axis, but they do not cross it.

It's important to note that the shape and characteristics of the t-distribution are determined by the degrees of freedom. As the degrees of freedom increase, the t-distribution becomes more similar to the z-distribution. However, even with large degrees of freedom, the t-distribution will always have slightly thicker tails than the z-distribution.

know more about distribution :brainly.com/question/29332830

#SPJ11

The required sample size to achieve a margin of error of 0.047 is approximately 155 (rounded up to the nearest whole number).

To construct a confidence interval for the proportion of respondents who believe that economic conditions are getting better, we can use the formula for calculating the margin of error:

The margin of Error (ME) = \(z * \sqrt{((p * (1 - p)) / n)}\)

Given information:

Sample proportion (p) = 0.10039 (10.039%)

The margin of Error (ME) = 0.047

We need to find the required sample size (n) to achieve the desired margin of error.

Rearranging the formula, we have:

\(n = (z^2 * p * (1 - p)) / ME^2\)

Now, we need to find the value of z corresponding to the desired confidence level. Let's assume a 95% confidence level, which corresponds to a z-value of approximately 1.96.

Using these values, we can calculate the required sample size:

\(n = (1.96^2 * 0.10039 * (1 - 0.10039)) / 0.047^2\)

= 3.8416 * 0.10039 * 0.89961 / 0.002209

= 0.3434 / 0.002209

= 155.447

Therefore, the required sample size to achieve a margin of error of 0.047 is approximately 155 (rounded up to the nearest whole number).

Learn more about the margin of error at:

https://brainly.com/question/29328438

#SPJ4