Esteban has a big jar f change in his room, he has 600 coins total, and 240 of them are pennies.
What percent of the coins are pennies?

Answer:

1/5 + 3/5 = 45 = 0.8

Step-by-step explanation:

Spelled result in words is four fifths.

The correct description of the function f: Z → Z, given by f(x) = x + 3, is "Neither one-to-one nor onto."

To determine if the function f is one-to-one, we need to check if each input value (x) has a unique output value (f(x)). In this case, for any integer x, f(x) = x + 3. Since the value of f(x) depends solely on the input value x, different input values can yield the same output value. For example, f(1) = 4 and f(2) = 5, indicating that the function is not one-to-one.

To determine if the function f is onto, we need to check if every possible output value has a corresponding input value. In this case, since f(x) = x + 3, any integer y can be obtained as an output value by choosing x = y - 3. Therefore, every possible integer output has a corresponding input value, making the function onto.

As a result, the function f: Z → Z, defined by f(x) = x + 3, is neither one-to-one nor onto.

Learn more about integer here:

https://brainly.com/question/490943

#SPJ11

f:Z→Z.f(x)=x+3f:Z→Z.f(x)=x+3

Select the correct description of the function f.

One-to-one and onto

One-to-one but not onto

Onto but not one-to-one

Step-by-step explanation:

In traingle ABC

\(\\ \sf\longmapsto 40+90+<B=180\)

\(\\ \sf\longmapsto <B+130=180\)

\(\\ \sf\longmapsto <B=50°\)

Now

\(\\ \sf\longmapsto x+100+50=180\)

\(\\ \sf\longmapsto x=30°\)

Answer:

Step-by-step explanation:

In ΔABC ,

∠A + ∠ACB + ∠B = 180 {Angle sum property of triangle}

40 + 90 + ∠B = 180

     130  + ∠B = 180

               ∠B = 180 - 130

              ∠B = 50

In ΔBFD ,

∠D + ∠B + ∠BFD = 180

x + 50 + 100 = 180

       x + 150 = 180

                x = 180 - 150

x = 30°

Answer:

53

Step-by-step explanation:

The uncertain digit in the measurement 127.4 mL is the last digit, which is 4.

In the given measurement of 127.4 mL, the implied uncertainty can be determined by considering the precision of the measurement.

The presence of one decimal place, after the digit 4, suggests that the measurement has a precision of 0.1 mL.

This means that the measurement is accurate to the nearest tenth of a milliliter.

The uncertain digit is the digit that represents the estimated or uncertain value. In this case, the uncertain digit is the last digit, which is 4.

It signifies that there is some level of uncertainty in the exact value of the measurement and that it could vary by ±0.1 mL.

To learn more about decimal place click here

brainly.com/question/29089858

#SPJ11

The range of values that we are permitted to enter into our function is known as the domain of a function. The x values for a function like f make up this set (x). A function's range is the collection of values it can take as input.

The collection of all potential inputs for a function is its domain. For instance, the domain of f(x)=x2 and g(x)=1/x are all real integers with the exception of x=0.

Think about the function y = f. (x). The range of the function is the range of all the y values, from least to maximum. Substitute all possible values of x into the provided expression of y to see whether it is positive, negative, or equal to other values.

To know more about function visit:-

brainly.com/question/12431044

#SPJ1

7 number of  students chose all three activities.

To find out how many students chose all three activities, we need to subtract the number of students who chose two activities from the total number of students. There are 76 students who chose sport, 64 students who chose music, and 40 students who chose drama. 12 students chose both music and sport, 7 chose both sport and drama, and 21 chose both music and drama. We can subtract these two-activity choosers from the total number of students to find out how many chose all three activities: 145 - (12 + 7 + 21) = 105. Therefore, 7 students chose all three activities.

learn more about number here

https://brainly.com/question/10547079

#SPJ4

Zack and his sister start watching the movie at 4 hours and 25 minutes before 6:19 P.M. i.e. 1:54 P.M.

In the given question, we have to find time when Zack and his sister start watching the movie.

As given that;

Zack and his sister watched an action movie that was 2 hours and 42 minutes long.

Converting the minute in hours by dividing by the 60

So time=2+ 42/60

Time=(120+42)/60

Time=162/60

After the movie, they played soccer in the backyard for 1 hour and 33 minutes.

Converting the minute in hours by dividing by the 60.

So time=1+ 33/60

Time=(60+33)/60

Time=93/60

So the total time they spend is

Total Time=Time in Movie+Time in Play Scoccer

Total Time=162/60+93/60

Total Time=(162+93)/60

Total Time=255/60

Total Time=4 hours 25 minutes

When they came in from playing soccer, it was 6:19 P.M.

Means the time when they start watching movies is 4 hours and 25 minutes before 6:19 P.M. i.e. 1:54 P.M.

To learn more about conversion of minute in hours link is here

brainly.com/question/28844335

#SPJ1

Milliliters can be converted into milligrams by a specific formula: Milliliters x Density = Milligrams. Density of a substance vary with different temperature and other factors.

Milliliters and milligrams are two different units of measurement used for different types of substances. Milliliters measure volume, while milligrams measure weight. To convert milliliters to milligrams, you need to know the density of the substance in question. The formula for this conversion is as follows:

Milliliters x Density = Milligrams

It is important to note that the density of a substance can vary depending on its temperature and other factors, so it is always best to double-check the density before making any conversions.

For example, if you have 10 milliliters of a substance with a density of 2 grams per milliliter, the calculation would be:

10 ml x 2 g/ml = 20 mg

In other words, the conversion of  10 milliliters of this substance would weigh 20 milligrams.

To know more about conversion:

https://brainly.com/question/19420601

#SPJ4

Answer:

-14x + 6

Step-by-step explanation:

Distribute:

-12x + 6 - 2x

Simplify:

-14x + 6

Answer:

  none.

  (a) is the closest

Step-by-step explanation:

A histogram is a sorting of the data values into bins. It tells you how many values fall in each bin.

Here the boundary values of the bins are labeled with integers. Comparison of the data to the graphs indicates the limits on a bin exclude the upper end. That is, for the bin labeled 20–24, we include only values 20 ≤ x < 24.

__

None of the offered choices is a correct histogram of the given data set.

__

Sorting the data into increasing order can help you create or check the histogram. The attachment shows the 25 data values sorted and properly binned into 5 bins of width 4.

A: only 24 data values are shown. The right-most bin is one short. Otherwise this is the best choice of answer.

B: only 24 data values are shown. They do not match the given data set. Too many (4) are put into the first bin.

C: 25 data values are shown. They do not match the given data set. Too few (2) are put in the first bin.

D: 25 data values are shown. They do not match the given data set. Too many (5) are put in the first bin.

_____

Additional comment

Usually, we want bin definitions so that there is no ambiguity regarding where a data value goes.

Answer:

It is false because the example shown is using conduction as the transfer of heat since it's using direct contact.

Answer:

8100

Step-by-step explanation:

Answer:

1.  -10x+36

2.  24x+121

3.  2x-8xy+32y

4.  50x-10xy+y^2

Step-by-step explanation:

i think dis right

Answer:

see explanation

Step-by-step explanation:

using the following expansions

a² + 2ab + b² = (a + b)²

a² - 2ab + b² = (a - b)²

1

x² - 12x + 36

with a = x and b = 6 , then

x² - 12x + 36 = x² - 2(x)(6) + 6² = (x - 6)²

2

x² + 22x + 121

with a = x and b = 11 , then

x² + 22x + 121 = x² + 2(x)(11) + 11² = (x + 11)²

3

x² - 8xy + 16y²

with a = x and b = 4y , then

x² - 8xy + 16y² = x² - 2(x)(4y) + 16y² = (x - 4y)²

4

25x² - 10xy + y²

with a = 5x and b = y , then

25x² - 10xy + y² = 25x² - 2(5x)(y) + y² = (5x - y)²

Answer:

Look at the lightest loaf of bread. It weighs 22 1/3 oz. The heavist loaf weighs 24 1/2. Subtract 24 1/2 and 22 1/3. Then, if the answer to that is 1 1/2 ounces then you agree. If it is not, then disagree. Then, add up all of the weights of the bread and find the answer.

The expected standard deviation of stock A's returns, based on the information presented in the table, is approximately 23.57%.

To calculate the expected standard deviation of stock A's returns, we first need to calculate the variance. The variance is the average of the squared deviations from the expected return, weighted by the probabilities of each outcome.

Given the information provided:

Outcome Probability Stock A Return

Good 16% 65.00%

Medium 51% 17.00%

Let's calculate the expected return first:

Expected Return = (Probability of Good × Stock A Return in Good) + (Probability of Medium × Stock A Return in Medium)

= (0.16 × 65.00%) + (0.51 × 17.00%)

= 10.40% + 8.67%

= 19.07%

Next, we calculate the squared deviations from the expected return for each outcome:

Deviation from Expected Return in Good = Stock A Return in Good - Expected Return

= 65.00% - 19.07%

= 45.93%

Deviation from Expected Return in Medium = Stock A Return in Medium - Expected Return

= 17.00% - 19.07%

= -2.07%

Now, we calculate the variance:

Variance = (Probability of Good × Squared Deviation in Good) + (Probability of Medium × Squared Deviation in Medium)

= (0.16 × (45.93%^2)) + (0.51 × (-2.07%^2))

= (0.16 × 0.2110) + (0.51 × 0.0428)

= 0.0338 + 0.0218

= 0.0556

Finally, we calculate the standard deviation, which is the square root of the variance:

Standard Deviation = √Variance

= √0.0556

= 0.2357 or approximately 23.57%

Therefore, the expected standard deviation of stock A's returns, based on the information presented in the table, is approximately 23.57%.

To learn more about standard deviation,

https://brainly.com/question/24298037

#SPJ4

Answer:

Your question does not make sense

Step-by-step explanation:

The width of the walkaway is given as follows:

43.3 feet.

The area of a rectangle of length l and width w is given by the multiplication of these dimensions, as follows:

A = lw

The parameters for this problem are given as follows:

The area is of 575 square feet, hence the width of the walkaway is obtained as follows:

11(w + 9) = 575

w = (575 - 11 x 9)/11

w = 43.3 feet.

More can be learned about the area of a rectangle at brainly.com/question/25292087

#SPJ1

The simplified expression is j^-4k^-12

From the question, we have the following parameters that can be used in our computation:

j^-5k^-5 x jk^-7

Rewrite as

j^-5k^-5 x jk^-7 = j^-5 * j * k^-5k^-7

Apply the law of indices in the products

j^-5k^-5 x jk^-7 = j^-4 * k^-12

So, we have

j^-5k^-5 x jk^-7 = j^-4k^-12

Hence, the expression is j^-4k^-12

Read more about expression at

https://brainly.com/question/15775046

#SPJ1

Answer:

The slope is 8

Step-by-step explanation:

In this situation, the probability that the researcher is making a Type I error is less than 1%.

Type I error refers to the rejection of a true null hypothesis, while Type II error refers to the failure to reject a false null hypothesis.

In this situation, since the alpha level is set to .01, the probability of making a Type I error (i.e., rejecting a true null hypothesis) is less than 1%, while the probability of making a Type II error (i.e., failing to reject a false null hypothesis) cannot be determined without knowing the effect size, sample size, and power of the study.

When a researcher reports a significant correlation using an alpha level of .01, it means that the probability of obtaining such a result by chance is less than 1%. However, this does not guarantee that the correlation is necessarily true or meaningful. There is always a possibility that the result is due to chance or other extraneous factors.

Therefore, the probability that the researcher is making a Type I error is less than 1%.

Learn more bout researcher here:

brainly.com/question/24174276

#SPJ4

The expression is simplified to give 2(9x + 2√3x - 5)

First, we need to know that surds are mathematical forms that can no longer be simplified to smaller forms

From the information given, we have that;

(2√3x - 2)(3√3x + 5)

expand the bracket, we get;

6√9x² + 5(2√3x) - 6√3x - 10

Find the square root factor

6(3x)  + 10√3x - 6√3x - 10

collect the like terms, we have;

18x + 4√3x - 10

Factorize the expression, we have;

2(9x + 2√3x - 5)

Learn more about surds at: https://brainly.com/question/840021

#SPJ1

Answer:

9.2 times greater

Step-by-step explanation:

Given that :

Half life :

Helium - 9 = 7x10^-21 seconds

Helium - 5 = 7.6x10^-22 seconds

To obtain the number of tunes helium - 9 half life is greater than helium - 5 ; we divide the half life of helium-9 by the half life of helium 5

7x10^-21 seconds / 7.6x10^-22 seconds

0.9210526 x 10^(-21 - (-22))

0.9210526 * 10^1

= 0.9210526 * 10

= 9.2105

About 9.2 times greater

To fill nine 1-lb tins with a snack mix containing twice as much nuts as raisins by weight using almonds for $2.45/lb. , peanuts for 1.85/lb., and raisins for 80 /lb. , you should buy 1.58 pounds of almonds, 3.16 pounds of peanuts, and 4.74 pounds of raisins.

You can use the following method to fill nine 1-lb tins with a snack mix:

Let x be the quantity of almonds in pounds.

Then 2x is the quantity of peanuts.

And 3x is the quantity of raisins.

To have twice as much nuts as raisins by weight, you must have 6 pounds of nuts and 3 pounds of raisins.

The cost of almonds is $2.45/lb, peanuts are 1.85/lb,andraisinsare.80/lb.

We can set up a system of equations to represent this problem:

2.45x + 1.85(2x) + .80(3x) = 15

Simplifying this equation gives:

7.95x = 12.6

Therefore, x = 1.58.

So you should buy 1.58 pounds of almonds, 3.16 pounds of peanuts, and 4.74 pounds of raisins.

To represent this system using a matrix equation, we can use the following matrix:

[2.45 3.70 .80] [x]   [15]

[2x]

[3x]

This can be written as Ax = b, where A is the coefficient matrix, x is the variable matrix, and b is the constant matrix.

To fill nine 1-lb tins with a snack mix containing twice as much nuts as raisins by weight using almonds for $2.45/lb. , peanuts for 1.85/lb., and raisins for 80 /lb. , you should buy 1.58 pounds of almonds, 3.16 pounds of peanuts, and 4.74 pounds of raisins1. We can represent this system using a matrix equation Ax = b where A is the coefficient matrix [2.45 3.70 .80], x is the variable matrix [x;2x;3x], and b is the constant matrix [15]. Solving this equation gives us x = [1.58;3.16;4.74]

LEARN MORE ABOUT weight here: brainly.com/question/19053239

#SPJ11

Answer:

4261

Step-by-step explanation:

Answer: 4378

Step-by-step explanation:

The correct answer is 4378

Answer:

A. y=-5/3x+1

Step-by-step explanation:

The celebrity spends $2,000,000 on a vacation home in Hawaii, she would spend $7,600 on property taxes, whereas if she buys a vacation home in New Jersey, she would spend $47,600 on property taxes.

To find out how much the celebrity would spend on property taxes in Hawaii, we need to multiply the property tax rate of 0.38% by the value of the vacation home:

Property tax in Hawaii = 0.38% × $2,000,000 = $7,600

To find out how much the celebrity would spend on property taxes in New Jersey, we need to multiply the property tax rate of 2.38% by the value of the vacation home:

Property tax in New Jersey = 2.38% × $2,000,000 = $47,600

Therefore, if the celebrity spends $2,000,000 on a vacation home in Hawaii, she would spend $7,600 on property taxes, whereas if she buys a vacation home in New Jersey, she would spend $47,600 on property taxes.

Learn more about property taxes here

https://brainly.com/question/25844719

#SPJ11

The correct statement is three fourths raised to the fourteenth power.

The Power rule for exponents: (am)n = am*n. To raise a number with an exponent to a power, multiply the exponent times the power. Negative exponent rule: x–n = 1/xn. Invert the base to change a negative exponent into a positive.

The important laws of exponents are :

Given:

(((3/4)^4 * (3/4)^3)^2

Now,

((3/4)^ ( 4+3))^2

=((3/4)^7)^2

=(3/4) ^(7*2)

=(3/4)^14

Learn more about exponent rules here:

brainly.com/question/28324398

#SPJ1

The option are:

nine sixteenths raised to the twenty fourth power

nine sixteenths raised to the fourteenth power

three fourths raised to the twenty fourth power

three fourths raised to the fourteenth power

1 1/2 = 1 5/10

2/5 = 4/10

1 5/10 - 4/10 = 1 1/10

1 1/10 + 2 = 3 1/10

3 1/10 gallons of paint left

Answer: 31/10 gallons of paint.

Step-by-step explanation:

Find common denominators.

3/2 = 15/10

2/5 = 4/10

15/10 - 4/10 = 11/10

2 + 11/10 = 31/10

Angles complementary to ∠BEA are ∠BED and ∠ABE.

Angles supplementary to ∠BFC are ∠AFB and ∠EFC.

Angle supplementary to ∠CAE is ∠FCD.

Complementary angles are defined as two angles whose sum is 90 degrees.

Complementary angles sum up to 90 degrees.

Supplementary angles are those angles that sum up to 180 degrees.

Therefore, the sum of the angles is 180 degrees.

Let's find the angles that are supplementary or complementary to the highlighted angles.

Therefore,

Angles complementary to ∠BEA are ∠BED and ∠ABE.

Angles supplementary to ∠BFC are ∠AFB and ∠EFC.

Angle supplementary to ∠CAE is ∠FCD.

learn more on angles here: https://brainly.com/question/29093545

#SPJ1