I have until Tuesday to do this please help.

Answer: The expression is undefined.

Step-by-step explanation:

Division by zero is undefined in mathematics. In this expression, there is a division by zero in the term 0/7. Therefore, the entire expression is undefined.

The absorbance of the given sample is 0.2076.

Length of the cuvette = 1 cm

Wavelength of the spectrophotometer = 620nm

Transmittance of the sample = 62%

We know, absorbance is related to transmittance by the formula written below;

A = log(1/T)                                                 equation 1

Also, percent transmittance %T = 100T

or we can write, T = (%T) / 100

On substituting value of T in equation 1 , we get

A = log(100/(%T))    

⇒ A = log(100) - log (%T)      

⇒ A = log(\(10^{2}\)) - log(%T)

⇒ A=  2log(10) - log(%T)    

We know, log10 = 1. On substituting the value of log 10 in above equation, we get

A = 2 - log(%T)

⇒ A = 2 - log(62)

⇒ A = 2 - 1.7924

⇒ A = 0.2076

The absorbance of the given sample is 0.2076.

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Answer:B

Step-by-step explanation:

The probability of x taking on a value between 75 to 90 is 0.25.

Given that x is a continuous random variable uniformly distributed between 65 and 85.To find the probability that x lies between 75 and 90, we need to find the area under the curve between the values 75 and 85, and add to that the area under the curve between 85 and 90.

The curve represents a rectangular shape, the height of which is the maximum probability. So, the height is given by the formula height of the curve = 1/ (b-a) = 1/ (85-65) = 1/20.Area under the curve between 75 and 85 is = (85-75) * (1/20) = (10/20) = 0.5Area under the curve between 85 and 90 is = (90-85) * (1/20) = (5/20) = 0.25.

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The system of linear equation that represent this problem is

6x + 10y = 900

10x + 4y = 1220

Let's represent the number of CDs Roberto bought as x and the number of magazines as y

The problem states the following information:

Using the variables;  x and y as given;

1. Roberto bought 6 CDs and 10 magazines for $900.00 pesos. This can be represented as the equation:

  6x + 10y = 900

2. María bought 10 CDs and 4 magazines for $1,220.00 pesos. This can be represented as the equation:

  10x + 4y = 1220

So, the system of equations representing the problem is:

6x + 10y = 900

10x + 4y = 1220

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Translation: Roberto bought 6 cd's and 10 magazines for $900.00 pesos; In the same store, her friend María bought 10 CDs and 4

magazines at $1,220.00 pesos. What is the system of equations with two unknowns that represents the problem?

Answer:

A = 528

Step-by-step explanation:

Formula of the area of a parallelogram: A = b*h

A = 32 * 16.5

= 528

Answer: Area of Parellelogram = bxh

Base= 32cm

Height= 16.5cm

So,

Area of Parellelogram = 32cm x 16.5cm

= 528cm square

Step-by-step explanation:

Answer:

it's a chemical change.

Step-by-step explanation:

a raw egg is converted into a hard boiled one by chemical changes happening inside it. Its also an irreversible change

The equation of the plane tangent to the given surface at the point (0,-2,-4) is given by:
2x + 8y + 16z = -192.

To derive this equation, let's first recall the general equation of a plane, which is given by ax + by + cz + d = 0.
Since the plane is tangent to the surface, the plane passes through the given point (0,-2,-4). Substituting these values in the general equation of a plane, we get:

0 + 8(-2) + 16(-4) + d = 0

Solving for d gives us d = 192. Substituting this value in the general equation of a plane, we get:

ax + by + cz + 192 = 0

Since the given surface is given by yze^(xz)-8 = 0, we can calculate the partial derivatives of the given surface w.r.t. x, y, and z. This gives us:

2x + 8y + 16z = 0

Adding 192 to both sides gives us the required equation of the plane, which is 2x + 8y + 16z = -192.

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Answer:

h(- 4) = - 23

Step-by-step explanation:

To evaluate h(- 4) substitute x = - 4 into h(x) , that is

h(- 4) = 5(- 4) - 3 = - 20 - 3 = - 23

h (-3) = 57

why does it keep saying to explain dis.... dont answer that

The correct answer is d. emergent.

An emergent leader is an individual who grows into the leadership role naturally, often due to circumstances or necessity. They are not appointed or assigned to the position of leadership but rather emerge from the group or organization based on their skills, qualities, or actions.

Emergent leaders may possess certain qualities or demonstrate their competence and ability to guide and influence others. They gain recognition and respect from their peers, leading to their emergence as leaders within the group or organization.

This type of leadership often occurs in situations where formal leadership structures may be absent or ineffective, and individuals step up to take charge based on their capabilities and the needs of the group.

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Answer:

Assuming its "Modeling a Water Wheel" from EDGE its

Distance: a= 1/2 b=1 c=3/2

Heights: d=1  e=0  f=-1

Step-by-step explanation:

The solution is, a = 6, b = 7, c = 8, d = 7 and e = 6.

Addition is a way of combining things and counting them together as one large group. ... Addition in math is a process of combining two or more numbers.

here, we have,

Let's remember that the complete revolution of the wheel is 360 degrees, and the distance traveled by a complete revolution is the length of the circumference: 2*pi*radius.

The inicial height of the point is 6 ft, and the radius of the wheel is 1 ft.

When the distance traveled is 0, the wheel turned 0 degrees, and the point will be in its inicial position (the lower position of the wheel), which is 6 feet high.

So the height will be a = 6 + 0 = 6 ft

When the distance traveled is pi/2, the wheel turned 90 degrees, and the point will be half the complete height of the wheel, which is 2 feet.

So the height will be b = 6 + 1 = 7 ft

When the distance traveled is pi, the wheel turned 180 degrees, and the point will be at the top of the wheel, which is 2 feet higher than the lower point of the wheel.

So the height will be c = 6 + 2= 8 ft

When the distance traveled is 3pi/2, the wheel turned 270 degrees, and the point will be half the complete height of the wheel, which is 2 feet.

So the height will be d = 6 + 1 = 7 ft

When the distance traveled is 2pi, the wheel turned 360 degrees, and the point will be in its inicial position (the lower position of the wheel), which is 6 feet high.

So the height will be e = 6 + 0 = 6 ft

So the answers are:

a = 6, b = 7, c = 8, d = 7 and e = 6

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The standard deviation of the data set labeled as having the least random error is X.

The standard deviation of the data set labeled as having the most random error is Y.

The standard deviation provides a measure of the variability or dispersion of the data points.

For the data set labeled as having the most random error, the larger standard deviation (Y) suggests that the data points are more spread out and have greater variability compared to the other data set.

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Answer:

Peyton in the correct option

Step-by-step explanation:

The correct expression is given by Peyton.

An expression is a sentence with a minimum of two numbers or variables and at least one math operation.

Consider if m is any integer, then

gcd (a + m⋅ b, b) = gcd (a, b).

If m is a positive divisor, then

gcd (a/m, b/m) = gcd (a, b)/m.

So, if x and y are prime, then

gcd(x*y, b) = gcd(x, b) *  gcd(y, b).

First, find the greatest common factor of the given terms.

The greatest common factor or GCF is the largest factor that all terms have in common.

Then, Factor out the greatest common factor from each term.

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In a case whereby letters in the word bubble are arranged in a row the number of unique arrangements that are there  in the letters is 120.

From the question we were given the word, bubble  which can be recognized as 6! arrangements  however we know that the  3 B’s are interchangeable, from the word which is to be arranged, and we can see that there are 6 letters all together in the word and can be arranged as;

6!/3!

= 720/6

= 120

Hence, we can conclude the arangement here is 120 unique wayas.

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Answer:

The volume of candy that is needed by Polly is 1,437.3 cubic inches

Step-by-step explanation:

What we have to do here is to find the volume of the sphere with a diameter of 14 inches

If the diameter is 14 inches, then the radius is 14/2 = 7 inches

This is because the radius is half the measure of the diameter

To find the volume of the sphere, we use the formula below;

Volume of sphere

= 4/3 * pi * r^3

pi = 22/7

r = 7 inches

Volume is;

4/3 * 22/7 * 7^3

= 4/3 * 22 * 7^2 = 1437.3 cubic inches

Answer:

10x + 60 ; 20x

Step-by-step explanation:

Given that:

Purchase price per bracelet = $10

Cost of booth = $60

Selling price per bracelet = $20

Hence,

Let number of bracelets = x

Expense equation :

(Price per bracelet * number of bracelet) + booth fee

(10 * x) + 60

10x + 60

Income equation :

Selling price * number of bracelets

20x

The probability that the height of a randomly chosen child is between 44.75 and 58.35 inches is approximately 0.8830.

To solve this problem, we need to find the area under the normal curve between the two given heights.

We can use the standard normal distribution by converting the given values into z-scores. The formula for calculating a z-score is

z = (x - μ) / σ

where x is the value we want to convert, μ is the mean of the distribution, and σ is the standard deviation of the distribution.

For the lower bound of 44.75 inches

z1 = (44.75 - 53.3) / 4.3 = -1.98

For the upper bound of 58.35 inches

z2 = (58.35 - 53.3) / 4.3 = 1.17

Now, we need to find the area under the normal curve between these two z-scores. We can use a standard normal table or a calculator to find this probability.

Using a standard normal table, the probability of z being between -1.98 and 1.17 is approximately 0.8830.

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a) The experimental probability of both choosing a ball that is odd and drawing a car that is either a K or J is given as follows: 29/60.

b) The theoretical probability of both choosing a ball that is odd and drawing a car that is either a K or J is given as follows: 4/9.

c) With a small number of trials, it is not surprising when the experimental probability is much greater than the theoretical probability.

A probability is calculated via the division of the number of desired outcomes by the number of total outcomes.

An experimental probability, as the name says, is calculated considering previous experiments.

Out of 60 outcomes, the desired outcomes and their absolute frequencies are given as follows:

Hence the experimental probability is obtained as follows:

(8 + 4 + 10 + 7)/60 = 29/60.

For the theoretical probability, we have that:

Hence it is given as follows:

p = 2/3 x 2/3

p = 4/9.

For a small number of trials, there usually are differences between the experimental and the theoretical probabilities, but these probabilities get closer as the number of trials increase.

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Statement                Reason

m∠A ÷ 5 = m∠B       1. Given

m∠B = 20                 2. Given

m∠A ÷ 5 = 20           3. Substitution

m∠A = 100                4. Multiplication property of equality

An expression is a way of writing a statement with more than two variables or numbers with operations such as addition, subtraction, multiplication, and division.

Example: 2 + 3x + 4y = 7 is an expression.

We have,

m∠A ÷ 5 = m∠B  ____(1)

m∠B = 20 _____(2)

Substitute (2) in (1)

m∠A ÷ 5 = 20

m∠A / 5 = 20

Multiply 5 on both sides.

m∠A = 5 X 20

m∠A = 100

Thus,

Statement                Reason

m∠A ÷ 5 = m∠B       1. Given

m∠B = 20                 2. Given

m∠A ÷ 5 = 20           3. Substitution

m∠A = 100                4. Multiplication property of equality

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The set S = {(-1, 0, 1, 0), (0, -1, 0, 1)} is an orthogonal basis for R¹. The orthonormal basis for R⁴ using the set S is {(-1/√2, 0, 1/√2, 0), (0, -1/√2, 0, 1/√2)}.

To determine if the set S is an orthogonal basis for R¹, we need to check if the vectors in S are orthogonal to each other.

(a) Set S = {(-1, 0, 1, 0), (0, -1, 0, 1)}

To check orthogonality, we need to calculate the dot product of the vectors.

The dot product of (-1, 0, 1, 0) and (0, -1, 0, 1):

(-1)(0) + (0)(-1) + (1)(0) + (0)(1) = 0

The dot product is zero, indicating that the two vectors are orthogonal.

Hence, the set S is an orthogonal basis for R¹.

(b) To convert the set S into an orthonormal basis for R⁴, we need to normalize the vectors in S.

Let's normalize each vector in S:

Vector v₁ = (-1, 0, 1, 0)

||v₁|| = √((-1)² + 0² + 1² + 0²) = √2

Normalized vector v₁: (-1/√2, 0, 1/√2, 0)

Vector v₂ = (0, -1, 0, 1)

||v₂|| = √(0² + (-1)² + 0² + 1²) = √2

Normalized vector v₂: (0, -1/√2, 0, 1/√2)

Therefore, the orthonormal basis for R⁴ using the set S is:

{(-1/√2, 0, 1/√2, 0), (0, -1/√2, 0, 1/√2)}

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True. A hashing algorithm is a mathematical routine used to generate a hash value from a primary key value.

A relative record number that may be used to retrieve the required record in a data structure is created using this hash value.

In order to facilitate quick access to the data, the hashing algorithm makes sure that the same hash value is generated for every primary key. How quickly the requested record can be found depends on how effective the hashing method is.

Also, it must be safe enough to prevent two main key values from producing the same hash value, as doing so might result in accessing the wrong records.

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Answer:

see explanation

Step-by-step explanation:

AD , BE and CF are medians of the triangle.

On each median the distance from the vertex to the centroid is twice as long as the distance from the centroid to the midpoint.

(1)

given BG = 5

GE = 2 × BG = 2 × 5 = 10

BE = BG + GE = 5 + 10 = 15

(2)

given CG = 16

GF = \(\frac{1}{2}\) × CG = \(\frac{1}{2}\) × 16 = 8

CF = CG + GF = 16 + 8 = 24

(3)

given AD = 30

AG = \(\frac{2}{3}\) × AD = \(\frac{2}{3}\) × 30 = 2 × 10 = 20

GD = \(\frac{1}{3}\) × AD = \(\frac{1}{3}\) × 30 = 10

(4)

given GF = x

GC = 2 × GF = 2 × x = 2x

CF = CG + GF = x + 2x = 3x

(5)

given AG = 9x , GD = 5x - 1

AG = 2 GD , that is

9x = 2(5x - 1)

9x = 10x - 2 ( subtract 9x from both sides )

0 = x - 2 ( add 2 to both sides )

2 = x

then

AD = AG + GD

     = 9x + 5x - 1

     = 14x - 1 ( substitute x = 2 )

     = 14(2) - 1

     = 28 - 1

     = 27

Answer:

Can you post a picture of the math question??

b can be written as a linear combination of a1 and a2 with weights x1 = 3 and x2 = 3.
Thus, (b) x1 = 3, x2 = 3 is the right response.

To determine whether b can be written as a linear combination of a1 and a2, we need to find weights x1 and x2 such that x1a1 + x2a2 = b.

Here a1 = [2 6 -4], a2 = [-2 6 6], and b = [0 36 6], we have the following system of equations:

2x1 - 2x2 = 0
6x1 + 6x2 = 36
-4x1 + 6x2 = 6

Solving for x1 and x2, we have:

From the first equation, we can write x1 = x2.

Substituting x1 = x2 in the second equation, we get:
6x1 + 6x1 = 36
12x1 = 36
x1 = 3

Since x1 = x2, we have x2 = 3 as well.

Now, substituting the values of x1 and x2 in the third equation, we get:
-4(3) + 6(3) = 6
-12 + 18 = 6
6 = 6

Since the system is consistent, there is a solution. Therefore, b can be written as a linear combination of a1 and a2 with weights x1 = 3 and x2 = 3.

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Required equation of the line which passes through the given points

(-1 ,-2) and (5,2) is equal to y = (2/3)x -(4/3).

As given in the question,

Given points of the line are :

( x₁ , y₁) = (-1 ,-2)

(x₂ , y₂) = (5,2)

Required equation of the line which passes through the given points

( x₁ , y₁) = (-1 ,-2) and (x₂ , y₂) = (5,2)

( y - y₁ ) / (x -x₁) = ( y₂ - y₁)/ (x₂ -x₁)

Substitute the points ( x₁ , y₁) = (-1 ,-2) and (x₂ , y₂) = (5,2) we get,

( y -(-2)) /(x -(-1)) = (2 -(-2))/ (5-(-1))

⇒(y+2)/ (x+1) = 4 / 6

⇒(y+2)/ (x+1) = 2/3

⇒ 3y +6 = 2x +2

⇒ 3y = 2x -4

⇒ y = (2/3)x -(4/3)

Therefore, Required equation of the line which passes through the given points (-1 ,-2) and (5,2) is equal to y = (2/3)x -(4/3).

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Answer:

$375

Step-by-step explanation:

Given the following :

Amount owed after three months of payment = $22,275

Amount owed after 12 months = $18,900

What was her average payment rate on the principal of the car loan during this time?

We can obtain the amount paid between the third month and the 12th months ;

(Amount owed after 12 months - amount owed after 3 months)

= ($22,275 - $18,900)

= $3,375

Number of months for which the payment above was made :

(12 - 3) = 9 months

Payment per month :

Amount paid / number of months

= 3375 / 9

=$375 per month

Answer:

2√21

Step-by-step explanation:

let the sides of bigger triangle be a, b and d.

then,

a²= b² + d² [ by Pythagoras theorem]

13² = 9² + d²

d² = 13² - 9²

d²= 169 - 81

d² = 88

d = √88

Now, the sides of smaller triangle are c, x, and d

by Pythagoras theorem,

d² = c²+x²

(√88)² = 2² + x²

88 - 4 = x²

x² = 84

x = √84

x= 2x2x3x7

x = 2√21

Therefore, the value of x is 2√21

Hope it's helpful..

Answer:

The FitnessGram Pacer test is a multistage aerobic capacity test that progressively gets more difficult as it continues. The 20 meter Pacer test will begin in 30 seconds. Line up at the start. The running speed starts slowly, but gets faster each minute after you hear this signal *boop*.

Step-by-step explanation:

Answer:

The Grammy Award, or just Grammy, is an award presented by the Recording Academy to recognize achievements in the music industry. The trophy depicts a gilded gramophone. The annual presentation ceremony features performances by prominent artists, and the presentation of those awards that have a more popular interest.

The value of the equation x² - x + 3 is 37/9.

We have,

We can start by multiplying both sides of the equation by x:

2x - 3/x = x + 1

2x - 3 = x^2 + x

Rearranging and simplifying, we get:

x^2 - x + 3 = (2x - 3) + x^2

x^2 - x + 3 = x^2 + 2x - 3

-x + 3 = 2x - 3

5 = 3x

x = 5/3

Now we can substitute x into the equation x^2 - x + 3:

x^2 - x + 3 = (5/3)^2 - 5/3 + 3

x^2 - x + 3 = 25/9 - 15/9 + 27/9

x^2 - x + 3 = 37/9

Therefore,

The value of x² - x + 3 is 37/9.

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