Charlie's age is 3 years less than twice Rylie's age. The sum of their ages is 30. Find their ages.​

Step-by-step explanation:

(4x-6)+(8x+18) = 180°

12x+12 = 180

12x=168

x=14°........ ..(1)

8x+18=y+3.. (putting the value of x from equation1)

72+18-3=y

y= 87°

hope this helps you.

It is important to center the x value before squaring because squaring the x values without centering them first reduces the effects of multicollinearity.

Multicollinearity is a term used in statistics to describe the relationship between two or more predictor variables in a multiple regression model. When two or more predictor variables in a multiple regression model are highly correlated, this is referred to as "multicollinearity."

It is important to center the x value before squaring because squaring the x values without centering them first reduces the effects of multicollinearity. When squaring the original x values, the resulting values can become very large. This can cause problems in a regression analysis, as the large squared values can dominate the model and make it difficult to interpret the relationship between the variables.

Centering the x values (i.e., subtracting the mean from each value) before squaring them reduces the risk of multicollinearity by minimizing the correlation between the squared x values and the original x values.

The other options mentioned in the question (strong correlation with y-squared, residual plot pattern, and straightening the scatterplot curve) do not explain why centering the x value before squaring is important.

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Answer: 3.4 x 10^-4 (aka 10 to the negative 4th power)

Step-by-step explanation:

In a fictional alphabet with 20 letters, there are 8,000 different 3-letter words possible.

To solve this problem, we can use the formula for permutations, which is n!/(n-r)!, where n is the number of letters in the alphabet and r is the number of letters in the word.

In this case, n = 20 and r = 3, so the formula would be 20!/(20-3)!. Simplifying the equation, we get:

P = 20!/(17!)

P = (20*19*18)/(1*1*1)

P = 8,000

Therefore, there are 8,000 different 3-letter words possible in a fictional alphabet with 20 letters.

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The best answer regarding the effects of carbon monoxide is option c, CO results in less oxygen loading hemoglobin but unloading is not changed.

Carbon monoxide binds up more tightly to the hemoglobin as compared to the oxygen molecules. This reduces the oxygen-carrying capacity of the blood and results in less oxygen loading onto hemoglobin.

However, once oxygen is already bound to hemoglobin, CO does not significantly affect its release or unloading. Therefore, option c is the most accurate statement among the given choices.

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Answer:

I believe its an obtuse triangle

Step-by-step explanation:

its greater than 90 degrees

The purpose of using prefix in the metric system is to properly sale the basis of the unit so large numeric values can be used effectively.

If the metric system is not properly prefixed it can lead to various inconsistencies in the the numeric values. for example if you go to a computer store and you do not know the scale like (kb, mb, gb, tb) you will get quite confused about what is the sales representative saying

Consider you went to a store to get sugar and you do not know the metric system say(gram, kg, mg) you would not know how much sugar you need directly by taking it in your hands.

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The nature of a graph, which has an even degree and a positive leading coefficient will be up left, up right position

The nature of the graphical representation of a quadratic equation with an even degree and a positive leading coefficient will give a parabola curve.

Given that we have a function f(x) = an even degree and a positive leading coefficient. i.e.

The domain of this function varies from -∞ < x < ∞ and the parabolic curve will be positioned on the upward left and upward right x-axis.

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Answer:

510.82 dollars

Step-by-step explanation:

Answer:

1807.81

Step-by-step explanation:

multiply 1952.42 by 3=5857.26

add the rest of the numbers=11995.65

subtract 10187.84=1807.81

Answer:

Step-by-step explanation:

Given:

Angles A and C are equal. This makes triangles similar:

Ratio of corresponding sides is same:

Side measures are:

Sophie needs approximately 14.82 ounces of flour to bake her cake .

To convert grams to ounces, we can use the conversion factor that 1 ounce is approximately equal to 28.35 grams . The mass m in grams (g) is equal to the mass m in ounces (oz) times 28.34952

1 ounces = 28.35 gram

So, to find the number of ounces of flour Sophie needs, we can divide the weight in grams by the conversion factor .

420 g × 1 ounces / 28.35 g

420 g / 28.35 g = 14.82 ounces

Therefore, Sophie needs approximately 14.82 ounces of flour to bake her cake .

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The value of x in the chord intersection is 16 units.

The intersecting chord theorem  states that the products of the lengths of the line segments on each chord are equal. In other words, If two chords intersect in a circle , then the products of the measures of the segments of the chords are equal.

Therefore, lets find the value of x in the intersecting chords as follows:

15 × x = 24 × 10

15x = 240

divide both sides of the equation by 15

x = 240 / 15

x = 16

Therefore,

x = 16 units

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The solution of each part of the question is given below:

a. Let C be the event that a person smokes cigars, and let S be the event that a person smokes cigarettes. The percentage of Americans who smoke either cigars, cigarettes, or both can be calculated as P(C U S), where U represents the union of two events. From the given information, P(C) = 15% and P(S) = 35%. The probability that a person smokes both cigars and cigarettes is 7%, so P(C ∩ S) = 7%.

P(C U S) = P(C) + P(S) - P(C ∩ S)

P(C U S) = 15% + 35% - 7% = 43%

So, 43% of Americans smoke either cigars, cigarettes, or both.

b. The percentage of Americans who smoke neither cigars nor cigarettes can be calculated as P(C' ∩ S'), where C' represents the complement of event C (not smoking cigars) and S' represents the complement of event S (not smoking cigarettes).

P(C' ∩ S') = 100% - P(C U S)

P(C' ∩ S') = 100% - 43% = 57%

So, 57% of Americans smoke neither cigars nor cigarettes.

c. The percentage of Americans who smoke cigars but not cigarettes can be calculated as P(C ∩ S').

P(C ∩ S') = P(C) - P(C ∩ S)

P(C ∩ S') = 15% - 7% = 8%

So, 8% of Americans smoke cigars but not cigarettes.

d. The conditional probability that a person smokes cigarettes given that he smokes cigars can be calculated as P(S | C), where S represents the event that a person smokes cigarettes and C represents the event that a person smokes cigars.

P(S | C) = P(S ∩ C) / P(C)

P(S | C) = 7% / 15% = 0.47

So, the conditional probability that a randomly selected person smokes cigarettes given that he smokes cigars is 0.47, or 47%.

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Marina's gross earnings for the week of 5/12 were $517.

Gross earnings refers to total amount of income earned over a period of time by an individual or household or a company.

Data given:

Marina's base salary = $487 per week

Commission $15,000 up to $25,000 = 0.5%

Commission rate on sales in excess of $25,000 = 1.4%

Sales for the week of 5/12 = $21,000

Commission on sales above $15,000 up to $25,000:

= 0.5% * ($21,000 - $15,000)

= 0.005 * $6,000

= $30

Commission on sales in excess of $25,000:

= 1.4% * ($21,000 - $25,000)

= 0.014 * $0 as no sales

= $0

Total earnings for the week of 5/12:

= Base salary + Commission

= $487 + $30 + $0

= $517.

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Check the picture below.

Answer:

-300

Step-by-step explanation:

Step 1:  Find the amount Elmer's funds decreased after purchasing the rabbits:

Let x represent Elmer's funds.

Since Elmer bought five rabbits for $10 each, he lost $10 5 times.

x - (10 * 5)

x - 50

Thus, Elmer lost (spent) $50 for the 5 rabbits.

Step 2:  Find the amount Elmer's funds decreased after purchasing the  cupboards:

Since Elmer bought four cupboards for $70 each, he lost $70 4 times:

x - (50 + (70 * 4))

x - (50 + 280)

x - 330

Thus, after purchasing the rabbits and cupboards, Elmer lost $330.

Step 3:  Find the amount Elmer's funds increased after finding the twenty-dollar bill:

Since Elmer found a twenty-dollar bill, he gained $20

x - (330 + 20)

x - 310

Step 4:  Find the amount Elmer's funds increased after returning one rabbit:

Since Elmer returned one rabbit, he gained $10:

x - (310 + 10)

x - 300

Thus, Elmer's funds changed totally by -$300.

Putting all the information together, we have:

x - 10 - 10 - 10 - 10 - 10 - 70 - 70 - 70 - 70 + 20 + 10

x - 50 - 280 + 30

x - 330 + 30

x - $300

Answer:

Gordo's weight = 15 pounds

It is outside the healthy weight range and is in the top 5% of weights of cats.

Gordo's weight makes Gordo unhealthy.

Step-by-step explanation:

μ = mean weight = 9.5 pounds

σ = standard deviation = 1.5 pounds

This is a normal distribution problem

We first calculate the limit of the bottom 5% of weights

Let the z-score for this limit be z'

P(z < z') = 0.05

From the normal distribution table,

z' = -1.645

And the limit for the top 5% which is z" = 1.645.

The weight that corresponds to these scores are then calculated.

Standardized scores are given as

z = (x - μ)/σ

So,

z' = (limit for the bottom 5% - μ)/σ

-1.645 = (limit for the bottom 5% - 9.5)/1.5

limit of the bottom 5% = (-1.645)(1.5) + 9.5 = 7.033 pounds

z" = ( (limit for the top 5% - μ)/σ

1.645 = (limit for the top 5% - 9.5)/1.5

limit of the bottom 5% = (1.645)(1.5) + 9.5 = 11.968 pounds

Therefore the healthy weight range for cats is (7.033 < x < 9.968)

Gordo's weight = 15 pounds

It is outside the healthy weight range and is in the top 5% of weights of cats.

Gordo's weight makes the cat unhealthy.

Flaco's weight = 8 pounds

Flaco's weight lies in the healthy weight range for cats. Hence, Flaco is a healthy cat.

a) The monthly payment for this fully amortising mortgage is approximately $10,331.25.
b) The monthly payment for this interest-only mortgage is approximately $14,360.33.

c) The new monthly payment after the interest rate increase is approximately $9,090.70.

d) The remaining loan balance is approximately $625,014.72.

A) To calculate the monthly payment of a fully amortising mortgage, we can use the formula:

M = P * (r * (1+r)^n) / ((1+r)^n - 1)

Where:
M = Monthly payment
P = Loan amount
r = Monthly interest rate
n = Total number of payments

For the given question, the loan amount is 81% of $1,175,378, which is $952,622.38. The annual interest rate is 11.6%, so the monthly interest rate would be 11.6% / 12 = 0.9667%. The mortgage term is 21 years, which means a total of 21 * 12 = 252 payments.

Plugging these values into the formula, we can calculate the monthly payment:

M = 952,622.38 * (0.009667 * (1+0.009667)^252) / ((1+0.009667)^252 - 1)

The monthly payment for this fully amortising mortgage is approximately $10,331.25.

B) To calculate the monthly payment of an interest-only mortgage, we can use the formula:

M = P * r

Where:
M = Monthly payment
P = Loan amount
r = Monthly interest rate

For the given question, the loan amount is 80% of $1,495,863, which is $1,196,690.40. The annual interest rate is 14.4%, so the monthly interest rate would be 14.4% / 12 = 1.2%.

Plugging these values into the formula, we can calculate the monthly payment:

M = 1,196,690.40 * 0.012

The monthly payment for this interest-only mortgage is approximately $14,360.33.

C) To calculate the new monthly payment after an interest rate increase, we can use the same formula as in part A:

M = P * (r * (1+r)^n) / ((1+r)^n - 1)

For the given question, the remaining loan balance is $700,134. The current interest rate is 14.5% per annum, and the loan term is 12 years.

To calculate the new interest rate, we need to add 1% to the current interest rate, which gives us 15.5% per annum, or 15.5% / 12 = 1.2917% as the monthly interest rate.

Plugging these values into the formula, we can calculate the new monthly payment:

M = 700,134 * (0.012917 * (1+0.012917)^144) / ((1+0.012917)^144 - 1)

The new monthly payment after the interest rate increase is approximately $9,090.70.

D) To calculate the remaining loan balance, we can use the formula:

B = P * ((1+r)^n - (1+r)^p) / ((1+r)^n - 1)

Where:
B = Remaining loan balance
P = Loan amount
r = Monthly interest rate
n = Total number of payments
p = Number of payments made

For the given question, the monthly payment is $8,364. The annual interest rate is 12.4%, so the monthly interest rate would be 12.4% / 12 = 1.0333%. The remaining loan term is 10 years, which means a total of 10 * 12 = 120 payments have been made.

Plugging these values into the formula, we can calculate the remaining loan balance:

B = P * ((1+0.010333)^120 - (1+0.010333)^360) / ((1+0.010333)^360 - 1)

The remaining loan balance is approximately $625,014.72.

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Answer:  y=1/2x+-4

(You cant give a certain number of points btw)

The length of Crust of around the larger pizza is 199.39 cm.

The distance between the centre of the sphere and any plane passing through it is known as the circumference. Any large circle that passes through a point known as a pole is called a meridian.

Given:

Restaurant 1:

One large 12-inch pizza for $18.99

Restaurant 2:

One large 31.75-centimeter pizza for $18.99

Converting 12 inch to centimeters

= 12 x 2.54 cm

= 30.48 cm

Now, the length of crust around larger pizza

= 2πr

= 2 x 3.14 x 31.75

=  199.39 cm

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To find the surface area (S) and volume (V) of the larger solid, we need to use the scale factor and the given surface area and volume of the smaller solid. Let's denote the scale factor as k, the surface area of the smaller solid as S1, the surface area of the larger solid as S2, the volume of the smaller solid as V1, and the volume of the larger solid as V2.

1. Surface Area: Since the two solids are similar, their surface areas are proportional to the square of their scale factor. Therefore, we can use the following formula to find the surface area of the larger solid:
\(S2 = S1 * k^2\)

2. Volume: Since the two solids are similar, their volumes are proportional to the cube of their scale factor. Therefore, we can use the following formula to find the volume of the larger solid:
\(V2 = V1 * k^3\)

To find the surface area (S) and volume (V) of the larger solid, plug in the given values for the surface area and volume of the smaller solid (S1 and V1) and the scale factor (k) into the formulas mentioned above. After calculating, you will obtain the surface area (S2) and volume (V2) of the larger solid.

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To determine the 90% confidence interval for the mean repair cost of VCRs, we need to find the critical value for constructing the interval. The sample data consists of 1414 randomly selected VCRs, with a sample mean repair cost of $55.95 and a sample standard deviation of $18.89.

The critical value is determined based on the desired confidence level and the sample size. In this case, we want a 90% confidence interval, which means we need to find the critical value that leaves 5% in the tails of the distribution (since the remaining 90% will be in the interval).

Using a standard normal distribution table or a calculator, the critical value for a 90% confidence level is approximately 1.645 (rounded to three decimal places). This value represents the number of standard deviations away from the mean that includes 90% of the distribution.

In the next step, we will use this critical value along with the sample mean, standard deviation, and sample size to calculate the confidence interval for the mean repair cost of the VCRs.

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Answer:

2(2n² + 2n) + 1

Step-by-step explanation:

(2n + 1)² can also written as

(2n + 1) × (2n + 1)

= 4n² + 2n + 2n + 1

= 4n² + 4n + 1

= 2(2n² + 2n) + 1

= an odd

Hence Proved!

-TheUnknownScientist 72

There are 17280 ways 5 letter words can be made from "math is fun" if each word must have 2 consonants and 3 vowels.

Permutation and Combination:

In mathematics, permutation refers to the process of putting all members of a set into a particular order or order. In other words, if the set is already ordered, the permutation of its elements is called permutation. Substitutions occur in more or less noticeable ways in almost every field of mathematics. They often occur when different orders are considered in a particular finite set.

Combining is a way of selecting items from a collection, and (unlike permutation) the order of selection does not matter. In smaller cases you can count the number of combinations. Combining refers to combining n things, taken k times at once, without repetition.

In the word " MATH IS FUN"

The number of Vowels = 03

The number of Consonant = 06

Total Number of words = 09

and, total number of words in even place = 04

The Number of ways = ⁴C₃ = 4 × 3 × 2 ×1/ 3×2×1

                                             = 4

Now,

The vowels can be arranged among themselves in 3! = 6 ways and 5 consonants can fill the remaining 6 places in 5! ,

i.e., 6× 5 × 4× 3× 2× 1 = 720

Therefore,

Total Number of ways = 4 × 6× 720

                                     = 17280 ways

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The function f(x) = \(\sqrt{x}\) is translated using the rule (x, y) → (x – 6, y+ 9) to create a(x), then the expression that describes the range of a(x) is y > 9. So, the correct answer is fourth option.

When the function f(x) = \(\sqrt{x}\)  is translated by shifting the original function horizontally by a constant value (x - 6) and vertically by a constant value (y + 9), the range of the function remains the same. The vertical shift of +9 units does not affect the range of the function.

Therefore, the range of the translated function a(x) is the same as the original function f(x), which can be expressed as y > 9, indicating that the y-values are greater than 9. So, fourth option is the correct answer.

The question should be:

The function f(x) = \(\sqrt{x}\) is translated using the rule (x, y) → (x – 6, y+ 9) to create a(x). which expression describes the range of a(x)? y > –9 y > –6 y > 6 y > 9

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Answer:

A

Step-by-step explanation:

I'm assuming this is in terms or the x axis so:

-1, -5

They are both pieces of the coordinates that are used to find the point in terms of the x axis

A (the first one)

Answer:

aaaaaaaaaa

Step-by-step explanation:

So to calculate 5 with an exponent of 3, you can write 5, 3 times with a multiplication symbol between them like so: 5 · 5 · 5 When we multiply them together, we get the answer to 5 with an exponent of 3.

The rejection region is not given in the question, so we cannot determine the type of error that can occur when the true survival rate is 50%.

However, we can calculate the probability of making a Type I error (rejecting the null hypothesis when it is actually true) and a Type II error (failing to reject the null hypothesis when it is actually false) for a given rejection region.

Assuming a significance level of 0.05, the rejection region for a one-tailed test of whether the true survival rate is greater than 40% is  with 19 degrees of freedom.

If the true survival rate is actually 50%, the probability of making a Type I error (rejecting the null hypothesis that the true survival rate is 40%) is 0.05, which is the significance level.

The probability of making a Type II error (failing to reject the null hypothesis that the true survival rate is 40% when it is actually 50%) depends on the true survival rate and the sample size. A larger sample size would decrease the probability of making a Type II error.

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The correct value is 720 ft of fencing.

Answer:

Max Area = 64800 sq.ft

Step-by-step explanation:

A square will always give us the maximum area.

Thus, one side would be;

720/4 = 180 feet

So, we want a square 180 ft by 180 ft

however, from the question, we are to use the creek as one side. So, we'll take the 180 ft that we don't need because of the creek and then add it to the opposite side to get 180 + 180 = 360 ft.

Thus,we now have a rectangle with dimensions: 180 ft by 360 ft

Area is given by;

area = length × width

Maximum Area = 180 × 360

Max Area = 64800 sq.ft