Junk food is known for having a lot of "empty calories." Which statement BEST explains the meaning of that term?
A.
Empty calories do not have many nutrients.
B.
Empty calories are made entirely from sugar.
C.
Empty calories need exercise to burn them off.
D. Empty calories are excluded from daily calorie counts.

Answer: Hello winstead. I'm Walter White

Step-by-step explanation:

Was this an actual question?

Therefore , the solution of the given problem of arithmetic mean comes out to be a(30) = 265.

When all of the values in a set of data have the same unit of measurement, such as when all of the numbers are heights, miles, hours, etc., this technique is utilized. Take the numbers 4, 7, 9, and 10 as an illustration. The count of numerals is 4, and the sum of the numbers is 30. 30 divided by 4 equals 7.5, which is the numbers' arithmetic mean.

Here,

Given that there is a common difference between each word, this is an arithmetic sequence. In this instance, the following term is obtained by adding 9 to the phrase before it in the sequence.

Alternatively put,

=> an=a1+d(n−1)

.Arithmetic Sequence:

d=9

This is the formula of an arithmetic sequence.

=>an=a1+d(n−1)

Substitute in the values of

=> a1 =4 and

d=9

.=>an=4+9(n−1)

Simplify each term.

Tap for more steps...

an=4+9n−9

Subtract 9 from 4

an=9n−5

Thus 30th term :

=> a(30)=9(30)−5

=> a(30) = 265

Therefore , the solution of the given problem of arithmetic mean comes out to be a(30) = 265.

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9514 1404 393

Answer:

  JL = 9√13

Step-by-step explanation:

All of the triangles in this geometry are similar:

  ∆MKL ~ ∆MLJ ~ ∆LKJ

Corresponding sides of similar triangles are proportional, so you can write the relations ...

  JL/JM = JK/JL   ⇒   JL² = JM·JK

  LM/JM = KM/LM   ⇒   LM² = JM·KM

Using the second expression to find JM, we have ...

 JM = LM²/KM = 18²/12 = 27

We know that JK = JM +KM. Then the first expression can be ...

  JL² = 27·(27 +12) = 9²·13

  JL = 9√13

The probability the friend finds no one in the first spot is 60%.

Probability is the chance or likelihood that an expected event occurs when there are many possible outcomes or events.

For instance, the probability that when the counting friend goes to the hiding spot, they can or cannot find a friend there.

The two friends can only hide in 2 spots, leaving 3 spots with nobody.

The number of hiding spots = 5

The number of friends hiding = 2

The number of counting friends = 1

The number of spots they can hide = 2 out of 5

The probability of finding a person in a hiding spot = 2/5 or 40%

The probability of not finding a person in a hiding spot = 3/5 (1 - 2/5) or 60% (1 - 40%).

The chances that your friend finds anyone in the first spot are 60%.

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Answer:

Yeo wsp

60g onions

40g carrots

1 tablespoon of oil

200 g tomatoes

.4 L vegetable stock

Step-by-step explanation:

You just divide everything by 3

A circle can be defined as a geometric shape consisting of all points in a plane that are equidistant from a given point, which is known as the center. The distance between the center of the circle and any point on the circle is referred to as the radius.

In order to find the center and radius of a circle, we need to have three points on the circle's circumference, and then we can use algebraic formulas to solve for the center and radius. Let's look at the given problem to find the center and radius of the circle that passes through the points (-1,5), (5,-3), and (6,4).

Center of the circle can be determined using the formula:

(x,y)=(−x1−x2−x3/3,−y1−y2−y3/3)(x,y)=(−x1−x2−x3/3,−y1−y2−y3/3)

Let's plug in the values of the given points and simplify:

(x,y)=(−(−1)−5−6/3,−5+3+4/3)=(2,2/3)

Next, we need to find the radius of the circle. We can use the distance formula to find the distance between any of the three given points and the center of the circle:

Distance between (-1,5) and (2,2/3) =√(x2−x1)2+(y2−y1)2=(2+1)2+(2/3−5)2=√10.111

Distance between (5,-3) and (2,2/3) =√(x2−x1)2+(y2−y1)2=(5−2)2+(−3−2/3)2=√42.222

Distance between (6,4) and (2,2/3) =√(x2−x1)2+(y2−y1)2=(6−2)2+(4−2/3)2=√33.361

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The equation f(g(x)) = x and g(f(x)) = x should be satisfied for inverse functions.

To find f(g(x)), we substitute g(x) into the function f(x):

f(g(x)) = 4(g(x)) - 12.

Given g(x) = 4 + √(x + 3), we substitute it into f(g(x)):

f(g(x)) = 4(4 + √(x + 3)) - 12.

Simplifying:

f(g(x)) = 16 + 4√(x + 3) - 12.

Combining like terms:

f(g(x)) = 4√(x + 3) + 4.

Therefore, f(g(x)) = 4√(x + 3) + 4.

(b) To find g(f(x)), we substitute f(x) into the function g(x):

g(f(x)) = 4 + √(f(x) + 3).

Given f(x) = 4x - 12, we substitute it into g(f(x)):

g(f(x)) = 4 + √((4x - 12) + 3).

Simplifying:

g(f(x)) = 4 + √(4x - 9).

Therefore, g(f(x)) = 4 + √(4x - 9).

(c) To determine whether the functions f and g are inverses of each other, we need to check if f(g(x)) = x and g(f(x)) = x.

From part (a), we found that f(g(x)) = 4√(x + 3) + 4.

From part (b), we found that g(f(x)) = 4 + √(4x - 9).

To check if they are inverses, we need to see if f(g(x)) = x and g(f(x)) = x.

f(g(x)) = x:

4√(x + 3) + 4 = x.

g(f(x)) = x:

4 + √(4x - 9) = x.

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Vector w can be expressed as w=1u-2v as linear combination of vector u and v.

Vector equation would be w=Au + Bv

[1,1]=A[5,7] + B[2,3]

Here A and B are constants and we are trying to find their values.

We can split two equations as

1=5A+2B → equation a

1=7A+3B → equation b

Solving these equations by elimination method . Multiplying equation a with 3 and equation b with 2.

3=15A+6B

2=14A+6B

1=A → A=1

Putting value of A in equation b:

1=7+3B

1-7=3B

-6=3B

B=-6/3=-2

A = 1 and B = -2 . It means we can write w as 1u - 2v. We can recheck by plugging the values in any of the vector to confirm if the values are correct or not.

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Answer:

y = 11

Step-by-step explanation:

A horizontal line passes through every single x - value, but only 1 y - value.

A vertical line hits every y-value and only 1 x-value.

The only y-value given is 11, so the equation is y = 11

-Chetan K

The statement that is true about J and K is that the expected values of J and K will be equal, and the variability of J will be greater than the variability of K. (Option E)

The sample size of J is 40 and sample size of K is 100. According to the central limit theorem if there is a population with mean μ and standard deviation σ and sufficiently large random samples is taken from the population with replacement, then the distribution of the sample means will be approximately normally distributed. Based on the theorem, both J and K will have the same expected value or mean.

As the standard deviation is inversely proportional to the same size, as the sample size increases, the standard deviation and related variability decreases. Hence, the variability of J will be greater than variability of K.

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Question: "Which of the following assessment types has the greatest effect on your overall grade?"

Answer: "Out of all the assessment types, 'tests' have the greatest effect on your overall grade as a student. Hence, Option D would be the best choice."

The  assessment types has the greatest effect on your overall grade is test.

The following information should be considered;

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Step-by-step explanation:

slope-intercept form : y = mx + b

m = slope

b = y intercept

y = -5x +8

Perimetrul paralelogramului este 14 cm, iar aria este 12 cm².

Pentru a găsi perimetrul unui paralelogram, trebuie să adunăm lungimea tuturor laturilor sale. În acest caz, avem două perechi de laturi egale: AB = DC = 7 cm și AD = BC = 3 cm + 4 cm = 7 cm. Astfel, perimetrul paralelogramului este 2 x (AB + AD) = 14 cm.

Pentru a găsi aria unui paralelogram, trebuie să înmulțim lungimea unei laturi cu înălțimea corespunzătoare. În acest caz, înălțimea este linia AD, care este perpendiculară pe BD. Prin urmare, aria paralelogramului este AD x BD = 3 cm x 4 cm = 12 cm².

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Answer:

45

Step-by-step explanation:

x + x + 2x = 180      {Sum of angles of a triangle}

            4x = 180 {Divide both sides by 4}

              x = 180/4

x = 45

Answer:

1 litro de leche cuesta 2.5

1 kg de jamón serrano cuesta 35

1 litro de aceite de oliva cuesta 7,5

Step-by-step explanation:

Pregunta correcta completa

Un cliente de un supermercado ha pagado un total de 240 por 16 litros de leche,4kg de hamon serrano y 8 litros de aceite de oliva. Sabiendo que 1 litro de aceite cuesta el tripe de 1 litro de leche; que 1kg de jamon cuesta igual que el cliente tendria que pagar si hubiera comprado 5 litros de leche y 3 litros de aceite de oliva. Calcule el precio de cada artículo.

Solución

Deje que el precio de un litro de leche, un kilogramo de jamón serrano y un litro de aceite de oliva sea x, y y z respectivamente.

16 litros de leche, 4 kg de hamon serrano y 8 litros de aceite de oliva cuestan 240

16x + 4y + 8z = 240 (ecuación 1)

1 litro de aceite cuesta el triple de 1 litro de leche

z = 3x (ecuación 2)

Y ese 1 kg de jamón cuesta lo mismo que el cliente tendría que pagar si hubiera comprado 5 litros de leche y 3 litros de aceite de oliva.

y = 5x + 3z (ecuación 3)

Sustituyendo las ecuaciones 2 y 3 en la ecuación 1

16x + 4(5x + 3z) + 8(3x) = 240

16x + 20x + 12z + 24x = 240

Recordemos que z = 3x

36x + 12(3x) + 24x = 240

36x + 36x + 24x = 240

96x = 240

x = (240/96) = 2.5

z = 3x = 3 × 2.5 = 7.5

y = 5x + 3z = (5×2.5) + (3×7.5) = 35

English Translation

A supermarket customer has paid a total of 240 for 16 liters of milk, 4kg of hamon serrano and 8 liters of olive oil. Knowing that 1 liter of oil costs the tripe of 1 liter of milk; t that 1kg of ham costs the same as the customer would have to pay if he had bought 5 liters of milk and 3 liters of olive oil. Calculate the price of each item.

Solution

Let the price of a liter of milk, a kilogram of Serrano ham and a liter of olive oil be x, y and z respectively.

16 liters of milk, 4kg of hamon serrano and 8 liters of olive oil cost 240

16x + 4y + 8z = 240 (eqn 1)

1 liter of oil costs the triple of 1 liter of milk

z = 3x (eqn 2)

And that 1kg of ham costs the same as the customer would have to pay if he had bought 5 liters of milk and 3 liters of olive oil

y = 5x + 3z (eqn 3)

Substituting eqn 2 and 3 into eqn 1

16x + 4(5x + 3z) + 8(3x) = 240

16x + 20x + 12z + 24x = 240

Recall that z = 3x

36x + 12(3x) + 24x = 240

36x + 36x + 24x = 240

96x = 240

x = (240/96) = 2.5

z = 3x = 3 × 2.5 = 7.5

y = 5x + 3z = (5×2.5) + (3×7.5) = 35

1 liter of milk costs 2.5

1 kg of Serrano ham costs 35

1 liter of olive oil costs 7.5

Hope this Helps!!!

Convolution of e(-t) and t*e(-9t) yields 1/(s+1)(s+9)2, which is the inverse Laplace transform.

A mathematical notion known as the convolution theorem connects the Laplace transform of two functions converging to the sum of their individual Laplace transforms.

Use the Convolution theorem to represent a function as a convolution of smaller functions, and then perform the inverse Laplace transform on each component to determine the function's inverse Laplace transform.

We have the function 1/(s+1)(s+9)2 in this situation. This function can be expressed as the convolution of the functions 1/(s+1) and 1/(s+9)2.

By using the equation L(-1)1/(s+a) = e(-at), we may determine the inverse Laplace transform of 1/(s+1). Therefore, e(-t) is the inverse Laplace transform of 1/(s+1).

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Answer:

The Great Western Trail = 4,455 miles

Step-by-step explanation:

The Iditarod Trail = 1,025 miles long

The Great Western Trail is 355 miles longer than 4 times the length of the Iditarod Trail.

The Great Western Trail = (4 × 1,025) miles + 355 miles

= 4,100 miles + 355 miles

= 4,455 miles

The Great Western Trail = 4,455 miles

The function that describes the population of Martin is\(P(t) = 12,420 \times (1 + 0.016)^t\)

The predicted population of Martin in 2015 is 14557

The predicted  population of Martin in 2002 is 10,658

The function that describes the population of Martin as a function of the number of years t, since 2005, can be written as:

\(P(t) = 12,420 \times (1 + 0.016)^t\)

where P(t) is the population of Martin t years since 2005.

To predict the population of Martin in 2015, we need to substitute t = 10 into the equation:

P(10) = 12,420 × (1 + 0.016)¹⁰

= 14556.5

Therefore, the predicted population of Martin in 2015 is approximately 14556.5 people.

To predict the population of Martin in 2002, we need to find the number of years between 2005 and 2002, which is 3 years.

We can substitute t = -3 into the equation:

P(-3) = 12,420 × (1 + 0.016)⁻³)

= 10,658

Therefore, the predicted population of Martin in 2002 is approximately 10,658 people.

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Answer:

here i finished!

hope it helps yw!

Step-by-step explanation:

The doubling period of a bacterial population is 15 minutes.

At time t = 90 minutes, the bacterial population was 50000.

Round your answers to at least 1 decimal place.

:

We can use the formula:

A = Ao*2^(t/d); where:

A = amt after t time

Ao = initial amt (t=0)

t = time period in question

d = doubling time of substance

In our problem

d = 15 min

t = 90 min

A = 50000

What was the initial population at time t = 0

Ao * 2^(90/15) = 50000

Ao * 2^6 = 50000

We know 2^6 = 64

64(Ao) = 50000

Ao = 50000/64

Ao = 781.25 is the initial population

:

Find the size of the bacterial population after 4 hours

Change 4 hr to 240 min

A = 781.25 * 2^(240/15

A = 781.25 * 2^16

A= 781.25 * 65536

A = 51,199,218.75 after 4 hrs

(a) The initial monthly efficiency rating of the second-shift unit when the training director was hired is 92 points.

The given model E(t) = 92 - 74e^(-0.02t) represents the efficiency of the unit in terms of time (t). When the training director is first hired, t is equal to 0. Plugging in t = 0 into the equation gives us:

E(0) = 92 - 74e^(-0.02 * 0)

E(0) = 92 - 74e^0

E(0) = 92 - 74 * 1

E(0) = 92 - 74

E(0) = 18

Therefore, the initial monthly efficiency rating is 18 points.

(b) After the training director has worked with the employees for 6 months, their unit-wide monthly efficiency score will be approximately 88.18 points.

We need to find E(6) by plugging t = 6 into the given equation:

E(6) = 92 - 74e^(-0.02 * 6)

E(6) = 92 - 74e^(-0.12)

E(6) ≈ 92 - 74 * 0.887974

E(6) ≈ 92 - 65.658876

E(6) ≈ 26.341124

Rounding this value to 2 decimal places, we get approximately 26.34 points.

(c) To solve for the value of t when E(t) = 77, we can set up the equation:

77 = 92 - 74e^(-0.02t)

To isolate the exponential term, we subtract 92 from both sides:

-15 = -74e^(-0.02t)

Dividing both sides by -74:

e^(-0.02t) = 15/74

Now, take the natural logarithm (ln) of both sides:

ln(e^(-0.02t)) = ln(15/74)

Simplifying:

-0.02t = ln(15/74)

Dividing both sides by -0.02:

t ≈ ln(15/74) / -0.02

Using a calculator, we find:

t ≈ 17.76

Therefore, t is approximately equal to 17.76.

(d) Rounding t up to the next integer gives us t = 18. So, it will take the training director 18 months to help the unit increase their monthly efficiency score to over 77 points.

In part (c), we obtained a non-integer value for t, but in this context, t represents the number of months, which is typically measured in whole numbers. Therefore, we round up to the next integer, resulting in 18 months.

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Two- tailed t- test, determined the 97.5% confidence level for p-value less than a significance level of 5%. So, researcher claims with 95% confidence that wearing earplugs will reduce the chance of hearing loss is also correct.

We have specify that a researcher wants to support the claim that wearing earplugs will reduce the chance of hearing loss.

Significance level= 5% = 0.05

P-value< 0.05

Now, the p-value for a two tailed test is computed by = 2× Area of the lower tail on one side. Here, P-value< 0.05, therefore Area of the lower tail on one side < 0.05 / 2

=> p-value for a one tailed test < 0.025

that represents the 97.5% confidence level. So, the researcher can actually claim here even at 97.5% confidence level that wearing earplugs will reduce the chance of hearing loss but even concluding at any confidence level less than 97.5% would be correct. Therefore the researcher is not incorrect in concluding here the given concluion at 95% confidence level.

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Answer:

4/5

Step-by-step explanation:

3/5+1/5

3+1 /5

simplifies to:

4/5

The rectangular coordinate form of a complex number is represented by the formula z=a+bi. The real axis is the horizontal one, and the imaginary axis is the vertical one. In terms of r and, where r is the vector's length and is the angle it makes with the real axis, we determine the real and complex components.

Rectangular form;-

Rectangular form, on the other hand, is where a complex number is denoted by its respective horizontal and vertical components. In essence, the angled vector is taken to be the hypotenuse of a right triangle, described by the lengths of the adjacent and opposite sides.

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Answer:70,030 I hope u get a grade for what ever it

Answer:

x = 3.5

Step-by-step explanation:

By definition, congruent chords are equidistant from the center of a circle. We are given two congruent chords and their distances(the lines perpendicular), meaning those distances must be equal. We set set up an equation to model the situation:

x + 8 = 3x + 1

8 = 2x + 1

2x = 7

x = 3.5

Answer:

should be your answer 10%+80=8 Goodluck

Answer:

8 m

Step-by-step explanation:

finding a percent means dividing the number (80) by the percentage (10)

whenever dividing by 10s, 100s, etc you move the decimal point to the left for every 0. just as the same rules with multiplying but to the right.

80/10 = 8

another way to do this without dividing to simplify is to reduce

since there is a zero (0) on both the numerator and denominator in the same spot (ones, 1s)  you can simply take away both zeros

8/1 = 8

your answer is 8 m

hope this helps:)

\(\frac{AB}{A"B"} = \frac{1}{4}\)  equation clearly illustrates how AABO and AA"B"C relate to one another.

An equation is, for instance, 3x - 5 = 16. We can solve this equation and determine that the value of the variable x is 7.

The three main types of linear equations are the slope-intercept form, standard form, and point-slope form.

Considering the data:

Dilation by a scale factor of 4 from the origin in the form of an A'B'C' reflection over x = 1

<=> The two triangles are comparable to one another since triangles can have the same shape but differ in size, so A′′B′′C′′ is 4 times larger than ABC.

=> the connection between "ABC" and "A"B"C" .

\(\frac{AB}{A"B"} = \frac{1}{4}\)

We settle on C.

\(\frac{AB}{A"B"} = \frac{1}{4}\)  equation clearly illustrates how AABO and AA"B"C relate to one another.

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The expectation, E(X²) of the random variable X is 2/3

Here we are given that the pdf or the probability density function of X is given by

4x³, where 0 < x < 1

clearly this is a continuous distribution. Hence we know that the formula for expectation for random variable X with probability density function f(x) is

∫x.f(x)

and, the formula for expectation

E(X²) = ∫x².f(x)

Hence here we will get

\(\int\limits^1_0 {x^2 . 4x^3} \, dx\)

here we will get the limits as 0 and 1 as we have been given that x lies between 0 and 1

simplifying the equation gives us

\(4\int\limits^1_0 {x^5} \, dx\)

we know that ∫xⁿ = x⁽ⁿ⁺¹⁾ / (n + 1)

hence we get

\(4[\frac{x^6}{6} ]_0^1\)

now substituting the limits will give us

\(4[\frac{1^6 - 0^6}{6} ]\)

= 4/6

= 2/3

The expectation, E(X²) of the random variable X is 2/3

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