someone please help answer the question in the picture

Answer:

Lauren's percent error = 13.95% Approx

Step-by-step explanation:

Given:

Number of photos predict = 129

Number of photos actual = 111

Find:

Lauren's percent error

Computation:

Lauren's percent error = [(Number of photos predict - Number of photos actual)/(Number of photos predict)]100

Lauren's percent error = [(129 - 111)/129]100

Lauren's percent error = [(129 - 111)/129]100

Lauren's percent error = [(18)/129]100

Lauren's percent error = 13.95% Approx

Answer:

The angle would be 123°.

We have

First we will multiply 3x by 4x, then 3x by 7, then -8 by 4x and then -8 by 7

then we sum similar terms and we obtain the answer

Answer: B

Step-by-step explanation:

B

The bottom is a line (no ends), notice how it has 2 arrows.

The (relatively) vertical one is a segment. Notice how it has 2 dots.

For reference:

2 arrows=line (no ends)

1 arrow, 1 dot=a ray (one end)

2 dots=a segment (2 ends)

Answer:

4.5

Step-by-step explanation:

Use sin64=x/5 and simplify to

5sin64 and plug it into a calculator to get 4.49 which is 4.5

The probability the mean age at heart attack after using cocaine is greater than 42 is 0.9192. Hence, the correct option is D. 0.9192.

The standard deviation of the age of people who suffered heart attacks soon after using cocaine was 10 years. In a random sample of size 49, what is the probability the mean age at heart attack after using cocaine is greater than 42?We are given the following details:

The mean age of people in the study who suffered heart attacks soon after using cocaine was only 44.

Standard deviation = 10

Sample size = 49

Now we need to find the z-score using the formula:

z = (x - μ) / (σ / √n)

wherez is the z-score

x is the value to be standardized

μ is the mean

σ is the standard deviation

n is the sample size.

Substitute the values in the formula as given,

z = (42 - 44) / (10 / √49)z = -2 / (10/7)

z = -1.4

Probability of z > -1.4 can be found using the standard normal distribution table or calculator.

P(z > -1.4) = 0.9192

Therefore, the probability the mean age at heart attack after using cocaine is greater than 42 is 0.9192. Hence, the correct option is D. 0.9192.

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The statement that is NOT correct about hypothesis testing is: "We cannot eliminate both type l error and type II error at the same time."

In hypothesis testing, we aim to make a decision about a population parameter based on sample data. Type I error refers to rejecting a true null hypothesis, while Type II error refers to failing to reject a false null hypothesis. While it is not possible to completely eliminate both types of errors simultaneously, we can minimize the chances of committing either of them by choosing an appropriate significance level and conducting a power analysis.

Therefore, the statement that we cannot eliminate both Type I and Type II errors at the same time is incorrect.

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Equivalent ratios are the ratios that are the same when we compare them. Three equivalent ratios are 1/2, 4/8, 3/6 in digits from 1 to 9.

A ratio is an ordered pair of numbers a and b, written a / b where b does not equal 0. A proportion is an equation in which two ratios are set equal to each other

Equivalent ratios are the ratios that are the same when we compare them.

The digits from 1 to 9 include 1,2,3,4,5,6,7,8,9.

Ratios are nothing but fractions.

Let 1/2 (one by two) is the first ratio.

Now 3/6 (three by six) is the second ratio

4/8 (four by eight) is the third ratio.

If we calculate the value of 1/2 = 0.5

The value of  3/6=1/2=0.5

The value of 4/8= 1/2=0.5

we get the same answer for all the ratios 1/2, 4/8 and 3/6 that is 0.5

That is 0.5 or 1/2.

Hence the three equivalent ratios are 1/2, 4/8, 3/6.

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The Blu-ray movie will cost approximately $36.42 in 5 years with an inflation rate of 12% and continuous compounding.

To calculate the future cost of the Blu-ray movie in 5 years with an inflation rate of 12% and continuous compounding, we can use the formula for continuous compound interest:

A = P * e^(rt)

Where:

A = Future value

P = Present value

e = Euler's number (approximately 2.71828)

r = Annual interest rate (in decimal form)

t = Time period in years

In this case, the present value (P) is $19.99, the inflation rate (r) is 12% or 0.12, and the time period (t) is 5 years. Substituting these values into the formula, we get:

A = 19.99 * e^(0.12 * 5)

Calculating the exponent first:

0.12 * 5 = 0.6

Then:

e^0.6 ≈ 1.82212

Finally:

A = 19.99 * 1.82212 ≈ 36.42

Using the formula for continuous compound interest, we calculated that a Blu-ray movie that costs $19.99 today will cost approximately $36.42 in 5 years, assuming an inflation rate of 12% and continuous compounding.

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Answer: You have the correct answer. It's choice C.

=========================================================

Work Shown:

\(3n^2+5 = -46\\\\3n^2 = -46-5\\\\3n^2 = -51\\\\n^2 = -51/3\\\\n^2 = -17\\\\n = \pm\sqrt{-17}\\\\n = \sqrt{-17} \ \text{ or } \ n = -\sqrt{-17}\\\\n = \sqrt{-1*17} \ \text{ or } \ n = -\sqrt{-1*17}\\\\n = \sqrt{-1}*\sqrt{17} \ \text{ or } \ n = -\sqrt{-1}*\sqrt{17}\\\\n = i\sqrt{17} \ \text{ or } \ n = -i\sqrt{17}\\\\\)

where \(i= \sqrt{-1}\) is the imaginary number.

The quadratic formula is another option you could do and you should get the same answers as above.

Answer:

C is the correct answer hope it helps

The cube's surface area inaccuracy can go up to a maximum of Δs=9 in²

What is a surface area?

The surface area is the sum of the areas of an object's face.  Surface is mainly used in real-life.

The surface area can be of two types in geometry:

1. Lateral surface area (It is also known as curved surface area)

2. Total surface area

Surface area is mainly used in chemical kinetics. Here is the question, the concept of the surface area is used.

The surface area of a cube=6a²

Let the surface area is s

s(x)= 6a²

Here, given x=6 feet

Δx=1.5/1.2

=0.125

Differentiating with respect to a,

ds=12a da

Δs=12(6)(0.125)

Δs=9  in²

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Answer:

i think the answer is

17m+10c=x

Step-by-step explanation:

True, The objective function in linear programming is formulated to either maximize or minimize a specific value or quantity.

The goal of linear programming is to optimize this objective function by finding the optimal values for the decision variables within the given constraints. Whether it is maximizing profit, minimizing cost, maximizing production, or minimizing waste, the objective function is designed to achieve the desired optimization outcome.

The objective function in linear programming serves as the goal or target to be achieved. It can involve maximizing profits, minimizing costs, maximizing efficiency, minimizing waste, or any other measurable quantity. The objective function guides the optimization process by defining the objective to be pursued in the linear programming problem.

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Given:

The first 10 GB of data costs $3 per GB.

After exceeds 10 GB, the company charges $15 for each GB.

Required:

We need to find the function for the given situation.

Explanation:

Let x be the number of GB that "Demetrius' used.

Let f(x) be the cost.

The first 10 GB of data costs $3 per GB.

After exceeding 10 GB, the company charges $15 for each GB

Final answer:

The shopkeeper buys 15 shirts for $240.

The difference in price between the item's purchase price and par value is the discount. The cost price of a product can be reduced or subtracted in the form of a discount. When customers receive discounts on various goods through consumer transactions, it is primarily used. Using percentages, the discount rate is provided.

Given that a store has a sale where all shirts are sold at a discount of 20%. If the regular price of the shirts is $20.

We have to determine the number of shirts purchased for $240.

The regular price of a shirt = 20

If 20% discount is given then

20 x (20/100)

= 20 x (1/5)

= 20/5

= 4

Discount = 4

After giving a discount the price of the shirt is

20 – 4

= 16

The cost price of each shirt is 16

1 shirt = $16

? = $240

= 240/16

= 15

Therefore the shopkeeper buys 15 shirts for $240

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If a 12-ft-by-15-gt rectangular swimming pool has a 3-ft-wide no-slip surface around it. The outer perimeter of the no-slip surface around the rectangular swimming pool is 78 feet.

The key idea in this problem is to recognize that the no-slip surface around the pool consists of a rectangular strip of uniform width that runs parallel to the edges of the pool. To find the outer perimeter of this strip, we need to add up the lengths of all four sides of the rectangle formed by the outermost edges of the no-slip surface.

Let's start by finding the length of the no-slip surface that runs along the length of the pool. Since the pool is 12 feet long and the no-slip surface extends 3 feet beyond each end of the pool, the total length of the no-slip surface is:

12 + 2(3) = 18 feet

The "2(3)" term in this equation represents the 3-foot-wide extension on each end of the pool. Next, we need to find the length of the no-slip surface that runs along the width of the pool. Since the pool is 15 feet wide and the no-slip surface extends 3 feet beyond each side of the pool, the total width of the no-slip surface is:

15 + 2(3) = 21 feet

Now we have the lengths of the two parallel sides of the rectangle formed by the outermost edges of the no-slip surface. To find the lengths of the other two sides, we simply add up the lengths of the corresponding sides of the pool.

Therefore, the length of the rectangle is 12 + 2(3) = 18 feet, and the width of the rectangle is 15 + 2(3) = 21 feet.

Finally, we can add up the lengths of all four sides of the rectangle to find the outer perimeter of the no-slip surface:

2(18) + 2(21) = 36 + 42 = 78 feet.

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Pua will use 13, 1/4 cups of oatmeal.

The division in mathematics is one kind of operation. In this process, we split the expressions or numbers into the same number of parts.

Given:

Pua needs 3\(\frac{1}{4}\) cups of oatmeal.

The number of 1/4 cups of oatmeal,

she will use,

= 13/4 ÷ 1/4

= 13

Therefore, she will use 13 cups.

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If the pattern continues, the value of y when x is 5 would be 35.

Based on the given pattern, we need to determine the value of y when x is 5.

Let's analyze the relationship between x and y:

When x = 0, y = 15

When x = 1, y = 19

When x = 2, y = 23

When x = 3, y = 27

By observing the pattern, we can see that the value of y increases by 4 as x increases by 1.

This indicates that there is a constant rate of change between x and y.

To find the value of y when x is 5, we can continue the pattern by adding 4 to the previous value of y:

When x = 4, y = 27 + 4 = 31

When x = 5, y = 31 + 4 = 35

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Answer:

can u say what subject is that

(0, 1) is a local maxima and (π, −1) is a local minima of the given function.

The given function is f(x)=cos(x).

Functions are the fundamental part of the calculus in mathematics. The functions are the special types of relations. A function in math is visualized as a rule, which gives a unique output for every input x.

Graph the trigonometric function using the amplitude, period, phase shift, and vertical shift.

Amplitude: 1

Period: 2π

Phase Shift: None

Vertical Shift: None

The coordinates to plot the graph are (0, 1), (π/2, 0), (π, -1),....

To find the x-intercept, substitute in 0 for y and solve for x.

To find the y-intercept, substitute in 0 for x and solve for y.

x-intercept(s): (π/2 +πn,0), for any integer n

y-intercept(s): (0,1)

Use the derivative to find the maximum and minimum.

(0, 1) is a local maxima and (π, −1) is a local minima

Therefore, (0, 1) is a local maxima and (π, −1) is a local minima of the given function.

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Answer:

m∠w = 131°

Step-by-step explanation:

Step 1: Find m∠zwy (Using sum of interior angles of a triangle)

m∠zwy = 180 - (46 + 85)

m∠zwy = 49°

Step 2: Find exterior angle (using Definition of Supplementary Angles)

m∠w = 180 - 49

m∠w = 131°

If the school has population of 2,462, then approximately 1,784 students at the school wore their school shirt on Friday.

If 19 out of 26 students wore their school shirt on Friday, then the fraction of students who wore their school shirt is:

\(\frac{19}{26}\)

We can use this fraction to estimate the number of students who wore their school shirt on Friday. If there are approximately 2,462 students in the school, then the estimated number of students who wore their school shirt on Friday is:

\((\frac{19}{26}) * 2,462 = 1,783.69\)

Rounding this to the nearest whole number, we get an estimate of 1,784 students who wore their school shirt on Friday.

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Answer:

congratulations x3

Step-by-step explanation:

Answer:

I have to wait for one ...............

Heritability is a statistic that quantifies the proportion of observed variance in a group of individuals that can be attributed to genetic variance.

Heritability is a fundamental concept in genetics and behavioral sciences that helps understand the extent to which genetic factors contribute to observed variations in a particular trait within a population. It measures the proportion of phenotypic variation (differences in traits) that can be explained by genetic variation. Heritability estimates range from 0 to 1, where a value of 0 indicates that all observed variation is due to environmental factors, and a value of 1 suggests that all observed variation is due to genetic factors.

To calculate heritability, researchers typically study populations with varying degrees of genetic relatedness, such as twins or family members. By comparing the similarity of traits between individuals with known genetic relatedness, it is possible to estimate the contribution of genetic factors to the observed variance. Environmental factors that contribute to phenotypic variation are considered as part of the non-genetic or "environmental" component.

It is important to note that heritability estimates are population-specific and apply only to the particular group being studied. Additionally, heritability does not provide information about specific genes or the precise mechanisms by which genetic factors influence traits. Nonetheless, heritability serves as a valuable tool in understanding the relative importance of genetic and environmental factors in shaping individual differences within a population.

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Answer:

500

Step-by-step explanation:

The 5 means 500. The whole number is read three thousand-five hundred-ninety

The value of the $1000 investment after 10 years at 6% interest compounded biannually is $1790.85 (rounded to the nearest cent).

To find the value of the $1000 investment after 10 years at 6% interest compounded biannually, we can use the formula:

A = P\((1 + r/n)^{nt}\)

where:

A = the final amount

P = the initial investment (principal)

r = the annual interest rate (as a decimal)

n = the number of times the interest is compounded per year

t = the number of years

In this case, P = $1000, r = 0.06, n = 2 (since interest is compounded biannually), and t = 10. Plugging these values into the formula gives:

A = $1000\((1 + 0.06/2)^{2*10}\)

A = $1000\((1.03)^{20}\)

A = $1790.85

Therefore, the value of the $1000 investment after 10 years at 6% interest compounded biannually is $1790.85 (rounded to the nearest cent).

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Adding a derivational suffix to a word often changes the part of speech is true.

What is derivational suffix ?

A derivational suffix is a type of affix that is added to the end of a base word to create a new word with a different meaning, often a different part of speech.

For example, adding the derivational suffix "-ness" to the base word "kind" creates the new word "kindness," which is a noun that refers to the quality or state of being kind. Similarly, adding the derivational suffix "-able" to the base word "value" creates the new word "valuable," which is an adjective that describes something that is worth a lot.

Derivational suffixes can change the meaning and function of a word, and they are often used to create new words in English. Some common derivational suffixes include "-er," "-able," "-ness," "-ful," "-ish," and "-ize."

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Complete question is: Adding a derivational suffix to a word often changes the part of speech is true.

Answer:

b = 4

Step-by-step explanation:

Let the given function is,

g(x) = x² + bx + 11

If a point (x, y) lies on the graph of this function, coordinates of the given point will satisfy the equation of the function.

If a point (1, 8) lies on the graph of the given function,

g(-1) = (-1)² + b(-1) + 11 = 8

1 - b + 11 = 8

12 - b = 8

b = 12 - 8

b = 4

Therefore, b = 4 will be the value of b.

The value of b is 4.

Given that,

Based on the above information, the calculation is as follows:

Here we put -1 in place of x

So,

\(g(-1) = (-1)^2 + b(-1) + 11 = 8\)

1 - b + 11 = 8

12 - b = 8

b = 12 - 8

b = 4

Therefore we can conclude that the value of b is 4.

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