HELP PLEASE I DON´T UNDERSTAND RATIOS!

Answer:

You could solve this by taking the y value and adding it to the multiplied rate.

For example: For Jill's 6 year mark, the equation would be 11(6) + 15.

Hope this makes sense, don't hesitate to ask for clarification on a certain part of the answer.

Answer:

5 unit

Step-by-step explanation:

please mark me as brainlest

Answer:

D.   6 units

Step-by-step explanation:

Answer:

Step-by-step explanation:

lets solve by elimination

first lets multiply the bottom equation by 2 so it can cancel out with 4

2(-2x+5y=-9)

-4x+10y=-18

now we cancel out

4x-10y=18

-4x+10y=-18

everything cancels out so there is no solution

Answer:

28

Step-by-step explanation:

divide 869 by the number of days in January

Neither student is correct and Venus is closer to the correct answer.

What is the proper fraction?

A proper fraction is a fraction where the numerator is smaller than the denominator. In other words, it represents a value that is less than one. Proper fractions are usually expressed in the form of a/b, where a is the numerator and b is the denominator.

Neither student is correct. The fraction 7/8 is a proper fraction, which means that it represents a value that is less than 1. It cannot be equivalent to a percentage that is greater than 100.

To convert a fraction to a percentage, we multiply the fraction by 100. So, to find the equivalent percentage for 7/8, we can calculate:

7/8 x 100 = 87.5%

Therefore, Venus is closer to the correct answer with her estimate of about 88%. Keyshawn may have made the mistake of multiplying 7/8 by 100 and getting 114% instead of dividing 7 by 8 to get the decimal equivalent of 0.875, and then multiplying by 100 to get the percentage equivalent of 87.5%.

Hence, neither student is correct and Venus is closer to the correct answer.

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Answer:

524 m³

Step-by-step explanation:

Volume of a sphere:

\(V=\frac{4}{3} \pi r^{3}\)

Since r is the radius, we plug that in.

\(V=\frac{4}{3}\pi (5m)^{3} \\V=\frac{4}{3}\pi (125m^{3})\\V=\frac{4\pi *125m^{3}}{3}\\V=\frac{500\pi m^{3}}{3}\\V=\frac{1570.796327 m^{3}}{3}\\V=523.5987756 m^{3}\\\)

Rounded up to the nearest square meter, the volume is 524 m³.

Using algebra tiles to represent the polynomial x² + 18x + 80 would be problematic due to the large number of tiles required.

Algebra tiles are mathematical manipulatives that help students better understand algebraic thinking patterns and concepts. These tiles have shown to be useful as physical examples

Using algebra tiles to represent the polynomial x² + 18x + 80 would be problematic due to the large number of tiles required.

Due to a large number of tiles. Hence algebra tiles not be a good tool to use to give a factor.

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Answer:

Sample response: Algebra tiles would not be a good tool to use to factor the trinomial because you would need to drag an x-squared tile, 18 x-tiles, and 80 plus tiles. That is a total of 99 tiles. It would take a lot of time to drag that many tiles on the board and there might not be enough space to hold all of them. You would also need to determine how to arrange all those tiles to make a rectangle. Since 80 is a multiple of 10, you might recognize that 10 and 8 are the factors that add to 18, which would give you the values to use in the X method.

Step-by-step explanation:

The length of the straw is 3.74 inches.

A rectangle is a two dimension figure with 4 sides, 4 corners and 4 right angles. The opposite sides of the rectangle are equal and parallel to each other.

Given that;

In rectangular box,

Length (l) = 2 inches

Width (w) = 1 inches

Height (h) = 3 inches

Here, The straw is said to fit into the box diagonally from the bottom.

So, the length (s) of the straw is calculated as:

⇒ s = √ l² + w² + h²

⇒ s = √ 2² + 1² + 3²

⇒ s = √ 4 + 1 + 9

⇒ s = √ 14

⇒ s = 3.74 inches

Thus, The length of straw = 3.74 inches

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The length of the straw will be 3.7416  inches long in radical form.

If a cuboid has length = l units, breadth = b units, and height = h units, then we can evaluate the length of the diagonal of a cuboid using the formula : X²=l²+b²+h²

Here,

As per the question the length of the straw is equal to length of the diagonal of Rectangular box.

l= 3 inch , b= 2 inch , h= 1 inch

Let us consider the length of the straw be 'x'.

As, Diagonal of Cuboid is,

X²=14

X=√14

i.e. X=3.7416

We get, X= 3.7416 (in radical form)

Hence, the length of the straw will be  5.91607 inches.

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Answer:

Need the other part of the problem

Step-by-step explanation:

Maybe...2(4+6)=2(10)

The expected value of m is the mean of the distribution of sample means. The correct option for the question is c) it is the mean of the distribution of sample means.

The expected value, also known as the mean or expectation, is a measure of the central tendency of a random variable. In other words, it refers to the theoretical mean of the distribution of a random variable. It is obtained by multiplying each possible outcome of a random variable by its probability of occurrence and then summing up all the products. The result is the expected value.

A sample mean is the arithmetic mean of a random sample of n observations drawn from a population. It is an unbiased estimate of the population mean. It is calculated by adding up all the observations in the sample and then dividing the sum by the sample size.

Sample standard deviation, also known as s, is a measure of the variability or dispersion of a random sample. It is the square root of the variance of the sample. It is calculated by taking the square root of the sum of the squared deviations from the sample mean divided by the sample size minus 1.

Therefore, option a) and option b) are incorrect as the expected value of m is not the sample mean or sample standard deviation. Option d) is also incorrect as the expected value of m is not the standard deviation of the distribution of sample means.

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75% of the beads are green in color.

percentage, a relative value indicating hundredth parts of any quantity.

Given that Chase ordered a set of beads

He received 4,000 beads in all.

3,000 of the beads were green.

We need to find the  percentage of the beads were green of 4000.

x/100×4000=3000

40x=3000

Divide both sides by 40

x=75%

Hence, 75% of the beads are green in color.

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Rounding the 14th partial sum to the thousandths place, we get A. 1333.252. Therefore, the correct answer is A. 1,333.252.

To find the 14th partial sum of the given series, we need to evaluate the sum of the first 14 terms.

The series alternates between adding and subtracting values, starting with 2000 as the first term, and each subsequent term being half of the previous term.

Let's break down the series:

Term 1: 2000

Term 2: -1000

Term 3: 500

Term 4: -250

We can see that each term alternates signs, and the magnitude of each term is halved compared to the previous term.

To find the 14th partial sum, we can start by calculating the sum of the first few terms to identify a pattern:

First term: 2000

Second term: 2000 - 1000 = 1000

Third term: 1000 + 500 = 1500

Fourth term: 1500 - 250 = 1250

Fifth term: 1250 + 125 = 1375

Sixth term: 1375 - 62.5 = 1312.5

We observe that the magnitude of the terms is converging towards a value, but the alternating signs continue.

To find the 14th partial sum, we can continue this pattern until the 14th term:

Term 7: 1312.5 + 31.25 = 1343.75

Term 8: 1343.75 - 15.625 = 1328.125

Term 9: 1328.125 + 7.8125 = 1335.9375

Term 10: 1335.9375 - 3.90625 = 1332.03125

Term 11: 1332.03125 + 1.953125 = 1333.984375

Term 12: 1333.984375 - 0.9765625 = 1333.0078125

Term 13: 1333.0078125 + 0.48828125 = 1333.49609375

Term 14: 1333.49609375 - 0.244140625 = 1333.251953125

Rounding the 14th partial sum to the thousandths place, we get 1333.252.

Therefore, the correct answer is A. 1,333.252.

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The molecular formula of the molecule is C4H10O. The molecule has an oxygen atom in it, so we can assume that the molecule is an alcohol.

The alcohol has four carbon atoms which suggest that it is butanol. Since there are four carbon atoms, we must determine the position of the hydroxyl group. The alcohol must be placed on the second carbon atom since it is numbered from the end of the carbon chain that is nearest to the hydroxyl group. The complete and correct name of the molecule is 2-butanol.The molecular formula of the molecule is C5H12. The molecule has no functional group in it, so it is an alkane. The alkane has five carbon atoms, and it is named pentane. Since there is no functional group to indicate stereochemistry, we assume that the molecule is a straight-chain pentane. molecule is n-pentane.

The molecular formula of the molecule is C5H10. The molecule has no functional group in it, so it is an alkene. The alkene has five carbon atoms, and it is named pentene. Since there is no functional group to indicate stereochemistry, we assume that the molecule is a straight-chain pentene. The double bond is located between the second and third carbon atoms.

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Answer:

8-16x.

Step-by-step explanation:

You switch around the numbers using the commutative property.

The result of the boolean expression is false

The values are given as

x = 5, y = 3, and z= 8

The expression is given as

not (x < y or z > x) and y < z

Substitute the given values

So, we have:

not (5 < 3 or 8 > 5) and 3 < 8

5 is less than 3 and 8 is greater than 5.

So, we have:

not (True) and 3 < 8

3 is less than 8

So, we have:

not (True) and true

Not true means false.

So, we have

false and true

This gives false

Hence, the result of the boolean expression is false

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Answer:

B Next, set the string length to be more than half of AB.

Step-by-step explanation:

Use a compass to draw a circle of any radius less than, with vertex B as the center.

Steps for drawing angle bisector of ∠ ABC.

Step 1. Draw any angle ABC

Step 2. Draw a circle using a compass of any radius less than AB, with vertex B as the center. Then the arc will cut on AB and BC such that say point P on AB and point Q on BC.

Step 3. Now take measure more than AP or BQ

Step 4. Cut the arcs using a compass on point P and point Q. You will get the intersection point.

Step 5. From that point say S draw a line to B. You will have SB, that is the angle bisector of angle ABC

A triangle has 3 medians and 3 altitudes. The outer angle of a triangle is equal to the sum of the opposite angles inside it. ∠ACD = ∠A + ∠B. Total Angle Properties: The sum of the three angles of the triangle is 180 °.

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The range of the given function is [-2,∞).

the range is the complete set of all possible values of the dependent variable say 'y'.

given function is:  f(x)=  |x – 12| – 2

f(x) = x-14  ∀ x≥12

f(x) = -x+10 ∀ x < 12

value of the above function at x=12 will be -2 means the minimum value of the function will be -2.

now, from the graph, we can see that f(x) is leading to infinity

so the range will be [-2,∞).

therefore, The range of the given function is [-2,∞).

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The range of the function is all real number of input value (y-value) grater than or equal to -2.

Range of a function is the set of all the possible output values which are valid for that function.

The function given in the problem is,

\(g(x) = |x - 12| - 2\)

Lets, compare the above function with the vertex form of the absolute function. The vertex form of the absolute function with vertex (h, k) can be given as,

\(y=a|x-h|+k\)

On comparing the vertex form with the given equation, we get,

\(h=12\\k=-2\)

Now, as the tange of a function is the set of all the possible output values which are valid for that function.

Here, the function does not take the value which are less than -2. Hence, the range of the function is all real number of input value (y-value) grater than or equal to -2.

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Answer: 2/3

Step-by-step explanation:

Answer:

6/10

Step-by-step explanation:

0.6 is not a repeating fraction.

Step 1:

0.6 = 6/10

Answer:

6/10

Hope This Helps :)

Answer:

y = -3x

Step-by-step explanation:

Answer:

the slope is 3

Step-by-step explanation:

find two points on the graph then do rise/run

Answer:

B. 5/18

Step-by-step explanation:

We have to digits taking the 0, they are as follows:

1, 2, 3, 4, 5, 6, 7, 8, 9

In other words, there are 9 in total.

Odd are 5 (1, 3, 5, 7, 9)

Pairs are 4 (2, 4, 6, 8)

Now, we have that the probability of drawing an odd one would be: 5/9

and that also, already selected that number, there would be 8 in total.

Therefore, drawing another number that is even the probability would be: 4/8

So the final probability is:

(5/9) * (4/8) = 20/72, we simplify (divide by 4) and we have 5/18 left

In other words, the answer is B. 5/18

Answer:

b

Step-by-step explanation:

Ben Collins plans to buy a house for $184,000, and if the real estate in his area is expected to increase in value by 3 percent each year, its approximate value will be around $208,943.95 six years from now.

To calculate the approximate value of the house six years from now, we can use the formula for compound interest: \(\(A = P(1 + r/n)^{nt}\), where \(A\)\) is the future value, \(\(P\\)) is the principal amount, \(\(r\)\) is the annual interest rate (expressed as a decimal), \(\(n\)\) is the number of times that interest is compounded per year, and \(\(t\)\) is the number of years.

In this case, the principal amount is $184,000, the annual interest rate is 3 percent (or 0.03 as a decimal), the compounding is done annually \((so \(n = 1\))\), and the time period is 6 years. Plugging these values into the formula, we get:

\(\(A = 184,000(1 + 0.03/1)^{(1)(6)}\)\)

Simplifying the equation, we have:

\(\(A = 184,000(1.03)^6\)\)

Evaluating this expression, we find:

\(\(A \approx 208,943.95\)\)

Therefore, the approximate value of the house six years from now would be around $208,943.95, assuming a 3 percent annual increase in real estate value.

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Answer:

XZ = 2.5 BD

Step-by-step explanation:

Comparing the two triangles,

\(\frac{BD}{BC}\) = \(\frac{XZ}{XY}\)

\(\frac{6}{8}\) = \(\frac{XZ}{20}\)

⇒ XZ = \(\frac{20*6}{8}\)

         = 15

XZ = 15

So that,

BD:XZ = 6:15

           = 1:2.5

Therefore, the relationship between BD and XZ is XZ = 2.5 BD.

At the age of 89, Roy has outlived the life expectancy for black men in the united states by 17.2 years

The current age of Roy = 89 years old

The life expectancy for black men = 71.8 years

The life expectancy average number of years that a person lives. Usually they calculate the life expectancy in a group of people living in a particular area like district, states and countries

The difference = The current age of Roy - The life expectancy for black men

Substitute the values in the equation

The difference = 89 - 71.8

Subtract the terms

= 17.2 years

Therefore, the Roy has outlived the life expectancy for black men by 17.2 years

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Pascal's triangle can be used to expand the binomial (d-3)^6. The expansion involves applying the binomial theorem and using the coefficients from the corresponding row of Pascal's triangle.

In this case, the sixth row of Pascal's triangle is 1 6 15 20 15 6 1, which represents the coefficients for each term in the expansion of (d-3)^6.

The binomial theorem states that for any binomial expression (a+b)^n, the expansion can be represented as the sum of terms of form C(n, k) * a^(n-k) * b^k, where C(n, k) is the binomial coefficient obtained from Pascal's triangle.

In this case, we have (d-3)^6, so the expansion will have seven terms corresponding to the powers of d from 6 to 0. Using the coefficients from the sixth row of Pascal's triangle, we can write the expanded form as:

(d-3)^6 = 1d^6 + 6d^5*(-3) + 15d^4(-3)^2 + 20d^3(-3)^3 + 15d^2(-3)^4 + 6d(-3)^5 + 1*(-3)^6.

Simplifying the terms and raising -3 to different powers, we can obtain the expanded form of (d-3)^6.

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The measure of central tendency best suited for the given situation are mode (a), median (b) and mean (c) respectively.

a. The measure of central tendency best suited for this situation is the mode, because it would provide the most representative score of the favorite season. The mode is the most commonly occurring value in a set of data, so it would be useful for determining the most popular season among the sample of 50 adults.

b. The measure of central tendency best suited for this situation is the median, because it would provide the most representative score of the length of stay in the hospital after a routine appendectomy. The median is the middle value in a set of data when the values are arranged in numerical order, and it is not affected by very high or very low values (as the mean is). Therefore, it would be the most useful for determining the average length of stay in the hospital for this particular sample.

c. The measure of central tendency best suited for this situation is the mean, because it would provide the most representative score of the standardized reading test scores. The mean is the average of all the values in a data set, so it would be useful for determining the average score of the sample of children from the middle-class, suburban elementary school.

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Answer:

x = 9

Step-by-step explanation:

When sum of two angles is 90, then they are known as complementary angles.

4x + 9  + 2x + 27 = 90

4x + 2x + 9 + 27 = 90

Combine like terms

6x + 36 = 90

Subtract 36 from both sides

6x = 90 - 36

6x = 54

Divide both sides by 6

x = 54/6

x = 9

Answer:

the answer is 1

Step-by-step explanation:

because I did 127+53=180

then you have to subtract 53 from each other 180-53=127

then you have to divide 127 and 127

then you go to gave you last answer is 1

True. In 2016, the percentage of the ageing population (55 years or older) in state prisons surpassed the percentage of people aged 18-24 for the first time.

This trend reflects the overall growth of the ageing population within the United States and is a result of various factors such as longer life expectancy, harsher sentencing laws, and an increase in older individuals being convicted of crimes.
As the ageing population in state prisons continues to grow, it poses several challenges for the correctional system. These challenges include providing appropriate healthcare and accommodations for older inmates and addressing the specific needs of this population, such as mobility assistance and specialized medical care.
In conclusion, the shift in the age demographics of state prisons has significant implications for the management and administration of correctional facilities. It is crucial to address the unique needs of the ageing population within these institutions and adapt policies and practices accordingly to ensure the well-being and fair treatment of all inmates, regardless of their age.

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Answer:

2(x+2)^2 -5

Step-by-step explanation:

2x^2+8x+3

Factor out a 2 from the first two terms.

2(x^2+4x)+3

Complete the square.

4/2 = 2

Square it

2^2 = 4

We are adding 2*4  so we need to subtract 8.

2(x^2+4x + 4)+3-8

Simplify

2(x+2)^2 -5

Answer:

The answer is B.

I think I answered the wrong answer.