help meeeeeeeeeeeeeeeeee please

Answer: $378

Step-by-step explanation: 18/8=2.25

Multiply 2.25 and 168 to get 378

Answer:

It has a slope of 0

m-0

Step-by-step explanation:

the domain of the composition f(g(x)) is x ≥ -4, expressed in interval notation as (-4, ∞).

To find the composition f of g, we substitute the function g(x) into the function f(x). The composition is denoted as f(g(x)).

f(g(x)) = f(x - 1)

Replacing x in the function f(x) with (x - 1), we have:

f(g(x)) = √(3(x - 1) + 15)

Simplifying the expression inside the square root:

f(g(x)) = √(3x - 3 + 15)

f(g(x)) = √(3x + 12)

The composition of f(g(x)) is √(3x + 12).

To specify the domain of the composition, we consider the domain of g(x), which is all real numbers. However, since the function f(x) contains a square root, the argument inside the square root must be non-negative to ensure a real-valued result. Therefore, we set the expression inside the square root greater than or equal to zero:

3x + 12 ≥ 0

Solving this inequality, we have:

3x ≥ -12

x ≥ -4

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1) The wavelength of A is equal to 6.98 × \(10^{-8}\)meters

2) The wavelength of B is equal to 3.45 × \(10^{-11}\) meters

Since we know that the wavelength = speed of light / frequency

The speed of light is 3.00 × \(10^8\) meters per second.

For light sample A with a frequency of 4.30 × 10^15 Hz can be calculated as;

wavelength of A = (3.00 ×  \(10^8\)  m/s) / (4.30 × 10^15 Hz)

wavelength of A = 6.98 ×  \(10^{-8}\) meters

For light sample B with a frequency of 8.70 × \(10^18\) Hz can be calculated as;

wavelength of B = (3.00 ×  \(10^8\) m/s) / (8.70 ×\(10^18\) Hz)

wavelength of B = 3.45 ×  \(10^{-11}\)  meters

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The equation of a line in the slope intercept form is expressed as

y = mx + c

Where

m represents slope

c represents y intercept

The equation of the given line is expressed as

3x - 6y = 30

Rearranging it so that it will look like the slope intercept form, it becomes

6y = 3x - 30

Dividing both sides by 6, it becomes

6y/6 = 3x/6 - 30/6

y = x/2 - 5

Looking at the equation, slope, m = 1/2

If two lines are parallel, it means that they have equal slope. This means that the slope of the line parallel to the given line is 1/2

To determine the y intercept, c of the line passing through the point (4, - 9), we would substitute

x = 4, y = - 9 and m = 1/2 into the slope intercept equation. It becomes

- 9 = 1/2 * 4 + c

- 9 = 2 + c

c = - 9 - 2

c = - 11

By substtuting m = 1/2 and c = - 11 into the slope intercept equation, the equation of the line would be

y = x/2 - 11

The probability of rolling two numbers that sum to 4 after two rolls of a six-sided die is 1/9 or approximately 0.1111. This means that out of all possible combinations, there is a 1 in 9 chance of obtaining a sum of 4.

To calculate the probability, we need to consider all possible outcomes of two dice rolls and determine the favorable outcomes where the sum of the two numbers equals 4.

Let's analyze the possible combinations for the first roll:

1 + 3 = 4

2 + 2 = 4

3 + 1 = 4

Out of these three combinations, only one of them results in a sum of 4.

For the second roll, we have the same possible combinations as the first roll. Again, only one combination gives a sum of 4.

Since the rolls are independent events, we can multiply the probabilities of each roll to find the probability of both events occurring. Therefore, the probability of rolling two numbers that sum to 4 is:

(1/6) * (1/6) = 1/36

However, we rolled the dice twice, so we need to account for the order in which these combinations can occur. We have two favorable outcomes: (1 + 3) and (3 + 1). Therefore, the probability becomes:

2 * (1/36) = 1/18

However, there are two possible ways to achieve a sum of 4: (1 + 3) and (3 + 1). Thus, we need to multiply by 2 again:

2 * (1/18) = 1/9

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The relative frequency distribution of the values of the mean of these 15,504 different samples would specify the sampling distribution of the mean.

The sampling distribution of the mean refers to the distribution of sample means obtained from repeated sampling from the same population.

In this case, we have 15,504 different samples of size 5 drawn from a population of 20 hospitals.

Each sample has its own sample mean. The relative frequency distribution of these sample means would specify the sampling distribution of the mean.

The sampling distribution of the mean is important in statistics because it allows us to make inferences about the population mean based on the distribution of sample means.

It helps us understand the variability of sample means and provides a basis for constructing confidence intervals and conducting hypothesis tests.

Therefore, the relative frequency distribution of the mean values from the different samples would describe the characteristics of the sampling distribution of the mean..

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Using the Fundamental Counting Theorem, it is found that Samantha has 24 different outfits to choose from.

What is the Fundamental Counting Theorem?

It is a theorem that states that if there are n things, each with n1 ,n2 , n3, ..... nn ways to be done, each thing independent of the other, the number of ways they can be done is:

N= n1*n2*n3.....nn

In this problem:

For the pants, there are 2 options,  hence n1=2 .

For the t-shirts, there are 2 outcomes, hence n2=2.

For the shoes, there are 9 outcomes, hence  n3=6.

Thus, the total number of outfits is given by:

N = 2 x 2 x 6 = 24.

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Answer:

680

Step-by-step explanation:

Answer: Substitute x back into one of the equations to solve for y.

Step-by-step explanation:

Volume = (571,536 sq ft × 481 ft) / 3 = 91,227,792 cubic ft

What is Limestone?

Calcium carbonate is one of the most commonly found materials in limestone rocks. Composition of calcium and magnesium as commonly produced from fossils, shells and debris.

(a) To estimate the total work done in building the pyramid, we need to calculate the gravitational potential energy of the pyramid. Gravitational potential energy is given by the formula:

Potential Energy = Mass × Gravity × Height

To calculate the weight of the pyramid, we need to determine its volume and density. The volume of a square pyramid is given by:

Volume = (base area x height) / 3

The base area of ​​the pyramid is given by:

Area of ​​base = length of side × length of side

Let's calculate the values ​​step by step:

Base area = 756 feet x 756 feet = 571,536 square feet

Volume = (571,536 square feet × 481 feet) / 3 = 91,227,792 cubic feet

Next, we need to convert volume to mass using density. However, the given information lacks the density of limestone. Could you please provide the density of the limestone so I can proceed with the calculation?

(b) Once we have the density of the limestone, we can estimate the number of workers needed to build the pyramid.

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Answer:

nope sorryyyyyy

Step-by-step explanation:

Answer: $217.26

Step-by-step explanation:

13.79 x 6 = 82.74

300 - 82.74 = 217.26

Ms. Gregory has $217.26 left.

Answer:

in triangle ABD

x+6+2x-3+90=180(sum of interior angle of triangle) (since each angle of rectangle=90)

3x+3=180-90

3x=90-3

x=87/3=29°

<DBC=<ADB{ALTERNATE ANGLE)=2x-3=2×29-3=55°

<BDC=ABD(ALTERNATE ANGLE)=x+6=29+6=35°

<ADH=180-<ADB{LINEAR PAIR)=180-2x-3=180-2×29-3=180-58-3=119°

<EBG=<DBC(VERTICALLY OPPOSITE ANGLE)=55°

The width of the rectangular garden is 21 feet.

A rectangle is a plane shape that have pair of opposite sides equal and parallel.

To calculate the width of the rectangle, we use the formula below

Formula:

Where:

From the question,

Given:

Substitute into equation 1

Hence, the right option is D. 21 feet.

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Answer:

C. 73

Step-by-step explanation:

angles A and C will be the same because their sides are the same length!

so to solve this, let's set up an equation

now let's solve!

angle A = 73

let me know if you have any questions :)

Answer:

C!

Step-by-step explanation:

To leave the radiator filled with a 55% antifreeze solution, 3 liters of the 25% solution of antifreeze must be removed and replaced with 3 liters of a 75% antifreeze solution.

We start by calculating the amount of antifreeze in the initial solution. Since the solution is 25% antifreeze, the amount of antifreeze in the solution is 25% of 5 liters, or 1.25 liters.

Let x be the amount of 75% antifreeze solution that must be added. We can set up the equation for the amount of antifreeze in the final solution as follows:

1.25 - 0.25(3) + 0.75x = 0.55(5)

Simplifying and solving for x, we get:

x = 3

Therefore, 3 liters of the 25% antifreeze solution must be removed from the radiator and replaced with 3 liters of the 75% antifreeze solution to leave the radiator filled with a 55% antifreeze solution.

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Answer:

payment fees

Step-by-step explanation:

Here is the completed table:

Time (x)    Distance from Surt (y)

0                           230

1                           185

2                           140

3                           95

4                                50

5                            5

To complete the table for John's drive, we need to substitute different values of x into the equation y = 230 - 45x to calculate the corresponding distances from Surt (y) at different times (x).

In this table, the time (x) represents the number of hours John has been driving, and the distance from Surt (y) represents the corresponding distance he has covered from Surt in miles.

For example, when John starts driving (x = 0), he is 230 miles away from Surt. As time progresses, the distance from Surt decreases by 45 miles for every hour of driving, according to the equation y = 230 - 45x.

By substituting different values of x into the equation, we can determine the distance from Surt at various points in John's drive.

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Every line on the graph is 1/2 unit.

When y = 0, x would be -0.25 and 1.25

When y = 2, x would be -0.5 and 1.5

∠1 and ∠2 are right angles because the measure of both angles is 90 and supplementary angles because the sum of both angles is 180°.

Triangle is a polygon that has three sides and three angles and the sum of the angle of the triangle is 180 degrees.

The figure is attached in the picture, please refer to the attached picture.

Given that:

An Angle in the figure is a right angle.

Its measure = 90°

So,∠2 = 90° ( vertically opposite angles are equal )

∠1 + ∠2 = 180° ( Linear Pair )

∠1 = 180 - 90

∠1 = 90°

∠1 = ∠2 = 90°

So, ∠1 and ∠2 are right angles because measure of both angles is 90°.

Adjacent angles because both a common arm and a common vertex.

Thus, ∠1 and ∠2 are right angles because the measure of both angles is 90 and supplementary angles because the sum of both angles is 180°.

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The value of 60 percent of $600 will be $360.

A percentage is a value or ratio that may be stated as a fraction of 100. If we need to calculate a percentage of a number, we should divide it's entirety and then multiply it by 100.

In this case, 60% of $600 will be illustrated thus:

= 60% × $600

= 60/100 × $600

= 0.6 × $600

= $360

Therefore, the value is $360.

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Answer:

y^10

multiplication of exponents is like addition, you just add exponents

The amount of feet of border that she needs to purchase is given as follows:

20 feet.

The perimeter of a square of side length s is given by the multiplication of four and the side length s, as follows:

P = 4s.

All the sides measure 5 feet, hence the parameter s is given as follows:

s = 5.

Then the perimeter of the square plot is given as follows:

P = 4 x 5

P = 20 feet.

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Investment X earns the greater amount of interest over a period of 2 years.

Simple interest is a method of calculating interest on an amount for n period of time with a rate of interest of r. It is calculated with the help of the formula,

SI = PRT

where SI is the simple interest, P is the principal amount, R is the rate of interest, and T is the time period.

Let's consider that Ian invests in X, then:

Principle amount, P = $6,000
Time, T = 2 Years

Rate of Interest, R = 4.5% at simple Interest = 0.045

The interest earned is:

Interest = PRT = $6,000 × 0.045 × 2 = $540

Now, consider that Ian invests in Y, then:

Principle amount, P = $6,000
Time, n = 2 Years

Rate of Interest, R = 4% at Compound Interest = 0.04

The interest earned is:

Interest = P(1+R)ⁿ - P

            = $6,000(1+0.04)² - $6,000

            = $489.6

Since $540>$489.6, therefore, Investment X earns the greater amount of interest over a period of 2 years.

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