2k + 5 — 7k = 8 + 3

I need someone to help me out with this one please.

Answer:

I think it is C

Step-by-step explanation:

Reason being because the question said at least 15 points more so it can't

be 12 equal to 12 points. so you could eliminate the greater than or equal to.

so that leaves c and d. can't see how it is D because if he has 15 points more can't see why his other portion of points could take away 15 so that leaves C.

hope that helps

Answer: To find out how many seconds it will take to print 300 copies of the Sport Report, we can use the formula:

time = (number of copies) / (rate of printing)

We know that the rate of printing for The Informer is 450 copies in 15 seconds. To find the rate of printing per second, we can divide the number of copies by the time in seconds:

rate of printing = 450 / 15 = 30 copies per second

So to find out how long it will take to print 300 copies of the Sport Report, we can use this rate of printing and plug it into the time formula:

time = (number of copies) / (rate of printing)

time = 300 / 30

time = 10 seconds

Therefore, it will take 10 seconds to print 300 copies of the Sport Report at the same rate as The Informer.

Step-by-step explanation:

Answer: 7.2

Step-by-step explanation: Cuz 5.6+12.9=18.5, 18.5-11.3=7.2

The missing number is 7.2.

We have the following expression.

5.6 + 12.9 = 11.3 + x

We have to find x.

Decimal numbers include those numbers which have a whole number and the fractional part separated by a decimal point.

According to the question -

5.6 + 12.9 = 11.3 + x

x = 18.5 11.3 = 7.2

Hence, the missing number is 7.2

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Answer:

Benjiro will have more kills because 40 divided by 10 is 4 so 4 times 4 is 16 while 3 times 5 is 15

Step-by-step explanation:

a survey of 1021 school-age children was conducted by randomly selecting children from several large urban elementary schools The U.S. Population Census is an example of a census

Census means the procedure of counting, calculating and recording the number and information about the members of the nation's.

Generally, population census are conducted every 10 years although some nations conduct their's every 5 years.

The primary objective of population census is to know the total size of the population of a country.

Population census also enable the government to appropriate resources fairly based on the number of people in a geographical area.

In conclusion, the U.S. population census is the only example of census.

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The probability of a magnitude 7.0-7.9 earthquake occurring in the Los Angeles area in the next 30 years is approximately 0.283, or about 28.3%.

To estimate the probability of a magnitude 7.0-7.9 earthquake in the Los Angeles area in the next 30 years, given a recurrence interval of 95 years, we can use the Poisson distribution. The Poisson distribution is often used to model the occurrence of rare events, such as earthquakes.

Let λ be the average number of earthquakes of magnitude 7.0-7.9 that occur in the Los Angeles area per unit time, which is given by:

λ = 30 years / 95 years = 0.3158 earthquakes per year

Now, let X be the number of earthquakes of magnitude 7.0-7.9 that occur in the Los Angeles area in the next 30 years. X follows a Poisson distribution with mean λ, which can be expressed as:

P(X = k) = (e^(-λ) * λ^k) / k!

where e is the base of the natural logarithm, and k is the number of earthquakes.

To find the probability of at least one earthquake occurring in the next 30 years, we can sum the probabilities of X = 1, 2, 3, ... up to infinity:

P(X ≥ 1) = 1 - P(X = 0) = 1 - e^(-λ) = 1 - e^(-0.3158) ≈ 0.283

Therefore, the probability of earthquake in next 30 years is approximately 0.283, or about 28.3%.

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if the correlation between x and y is equal to -1.0, then we know that the prediction of y by x is perfect

The correlation coefficient is a unitless number and must always lie between –1.0 and +1.0, inclusive.

The correlation coefficient, r , gives us information about the strength and direction of a linear relationship between any two variables. (r > 0 is a positive correlation, r < 0 is negative, and |r| closer to 1 means a stronger correlation.

The larger r is in absolute value, the stronger the relationship is between the two variables.

If r is the correlation between two variables x and y then -r is the correlation between y and x

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Answer: The unit value of a cubic centimeter (cm^3) is the same as the metric measurement of a milliliter (mL).

This is because 1 milliliter is equal to 1 cubic centimeter. In other words, if you have a cube that measures 1 centimeter on each side, its volume would be 1 cubic centimeter, which would also be equivalent to 1 milliliter of volume.

This relationship between cm^3 and mL is commonly used in scientific and medical measurements involving liquids and gases.

The unit value of a cubic centimeter (cc) is equivalent to one milliliter (mL) in the metric system. Both cubic centimeters and milliliters are used to measure volume, and their conversion is straightforward: 1 cc = 1 mL.

The metric system uses base units such as meters, liters, and grams, and applies prefixes like kilo-, centi-, and milli- to indicate larger or smaller units of measurement.
Cubic centimeters are often used to measure the volume of solid objects or the capacity of containers, while milliliters are more commonly used to measure the volume of liquids. However, both units represent the same volume and can be used interchangeably.
It is important to understand the difference between volume measurements and other metric measurements, such as length or mass. For instance, meters are used to measure length or distance, and grams are used to measure mass or weight. These units cannot be directly converted to cubic centimeters or milliliters, as they represent different physical properties.
In summary, a cubic centimeter (cc) is a unit of volume in the metric system that is equivalent to one milliliter (mL). Both units can be used to measure volume, and they have a simple conversion of 1 cc = 1 mL. Understanding the relationship between these units and other metric measurements is essential for accurately quantifying and comparing different physical properties.

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Explanation:

I recommend drawing it out to see what's going on. See the drawing below.

In the diagram, both angles are in the northeast corner of their four-corner configurations. They are both congruent corresponding angles. So that's why the second angle is also 95 degrees.

Side note: we could replace "northeast" with any of the other directions on the compass (such as southwest). All that matters is that they are in the same configuration.

Answer:

y=-2x+5

Step-by-step explanation:

Answer:

y=-2x+5

Step-by-step explanation:

First, subtract 4x from both sides. You will get 2y=-4x+10. Then divide both sides by 2 to isolate the y. You will get y=-2x+5.

Stem-and-leaf plots contain original data values where histograms do not. Therefore, option B is the correct answer.

The "stem" values are listed down, and the "leaf" values go right (or left) from the stem values.

The "stem" is used to group the scores and each "leaf" shows the individual scores within each group.

The advantage of a stem leaf diagram is it gives a concise representation of data. The advantage of a frequency histogram is, that it is visually strong. Histograms are usually preferable to stem and leaf diagrams in large data sets. The disadvantage of a stem leaf diagram is not visual.

Therefore, option B is the correct answer.

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Answer:

x+15 or 15+x

Step-by-step explanation:

it doesn't really matter since the commutative property.

sum = addition

15 = one term

number x = second term

A. Number of trips booked if the decrease in price is x dollars per rate is 200 trips. and B. If they decrease the price by x dollars, the new price per trip will be $100 - x.

a. The expression to represent the number of trips booked if the decrease in price is x dollars per rate is:

(200 + 10x)

This is because for every 1 dollar decrease in the price per trip, they can book an additional 10 trips. So, if they decrease the price by x dollars, they will be able to book 10x more trips in addition to the original 200 trips.

b. The expression to represent the price per trip if the two sisters decrease the x dollars per trip is:

(100 - x)

This is because the original price per trip was $100. If they decrease the price by x dollars, the new price per trip will be $100 - x.

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The calculated value of the angle x is 58 degrees

from the question, we have the following parameters that can be used in our computation:

The triangle

Using the sum of opposite external angles, we have the following equation

114 = 56 + x

When the like terms are evaluated, we have

x = 114 - 56

Evaluate

x = 58

Hence, the value of x is 58

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Answer:

if this is on edge just choose all of them

The management salary is $19,429

What is ratio?

Ratio is the quantitative relationship between two numbers which shows the number of times an amount or a number is contained within the other amount or number.

In this case, a ratio  of 8:7 shows the number of times the management salaries is contained within the management trainee salary

The management salary has a  value of 8 whereas the management trainee salary has a value of 7 as shown below:

salary ratio=management salary/management trainee salary

salary ratio=8/7

management salary=unknown(assume it is X)

management trainee salary=$17,000

8/7=X/$17,000

cross multiply

8*$17,000=7*X

X=8*$17,000/7

X=$19,429

The fact that annual management trainee salary is $17,000 means that the management salary is $19,429 annually.

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Answer:

Blue = 116 m^2

Step-by-step explanation:

The area of the path and the square  =  30*30 = 900 m^2

The size of the square = 30 - 2 = 28. The square = 28^2 = 784

The path takes up the difference between the two 900 - 784 = 116

The solution to the given initial value problem, obtained using Laplace transforms, is y(x) = 0. This means that the function y(x) is identically zero for all values of x.

To find the solution of the initial value problem using Laplace transforms for the equation d²y/dx² + 9y = 9sin(t)u(t - 3), where y(0) = y'(0) = 0, we can follow these steps:

Take the Laplace transform of the given differential equation.

Applying the Laplace transform to the equation d²y/dx² + 9y = 9sin(t)u(t - 3), we get:

s²Y(s) - sy(0) - y'(0) + 9Y(s) = 9 * (1/s² + 1/(s² + 1))

Since y(0) = 0 and y'(0) = 0, the Laplace transform simplifies to:

s²Y(s) + 9Y(s) = 9 * (1/s² + 1/(s² + 1))

Solve for Y(s).

Combining like terms, we have:

Y(s) * (s² + 9) = 9 * (1/s² + 1/(s² + 1))

Multiply through by (s² + 1)(s² + 9) to get rid of the denominators:

Y(s) * (s⁴ + 10s² + 9) = 9 * (s² + 1)

Simplifying further, we have:

Y(s) * (s⁴ + 10s² + 9) = 9s² + 9

Divide both sides by (s⁴ + 10s² + 9) to solve for Y(s):

Y(s) = (9s² + 9)/(s⁴ + 10s² + 9)

Partial fraction decomposition.

To proceed, we need to decompose the right side of the equation using partial fraction decomposition:

Y(s) = (9s² + 9)/(s⁴ + 10s² + 9) = A/(s² + 1) + B/(s² + 9)

Multiplying through by (s⁴ + 10s² + 9), we have:

9s² + 9 = A(s² + 9) + B(s² + 1)

Equating the coefficients of like powers of s, we get:

9 = 9A + B

0 = A + B

Solving these equations, we find:

A = 0

B = 0

Therefore, the decomposition becomes:

Y(s) = 0/(s² + 1) + 0/(s² + 9)

Inverse Laplace transform.

Taking the inverse Laplace transform of the decomposed terms, we find:

L^(-1){Y(s)} = L^(-1){0/(s² + 1)} + L^(-1){0/(s² + 9)}

The inverse Laplace transform of 0/(s² + 1) is 0.

The inverse Laplace transform of 0/(s² + 9) is 0.

Combining these terms, we have:

Y(x) = 0 + 0

Therefore, the solution to the initial value problem is:

y(x) = 0

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The distance traveled in 25 minutes is 32.34 miles.

Remember the relation:

distance = speed*time

Here we know that speed = 77mi/h

And the time is 25 min, but we should write this in hours, remember that:

1 hour = 60 min

then:

25 min = (25/60) h = 0.42 hours.

Then the distance is:

D = (77 mi/h)*0.42h = 32.34 miles.

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Answer:

68 = 2L + 2(9)

Step-by-step explanation:

Just write down exactly what it says!

The perimeter of a rectangle is 68 inches

68

The perimeter equals twice the length of L inches

68 = (2 × L)

Plus twice the width of 9 inches.

68 = (2 × L) + (2 × 9)

Now just clean up the equation.

68 = 2L + (2 × 9)

68 = 2L + 2(9)

The answer is 68 = 2L + 2(9).

Answer:

85 boxes at the store becuase 17 is 20 percent of 85

Answer:

Step-by-step explanation:

A rectangular pyramid has five sides. It consists of a rectangular base and four triangular faces that meet at a common vertex or apex.

≧◉◡◉≦

The mean weight of 7 grapefruits will be 7 pounds and the standard deviation will be 0.84 pounds.

The mean weight of R will be 3 pounds and the standard deviation will be 0.36 pounds.

The mean weight of Q will be 4 pounds and the standard deviation will be 0.48 pounds.

a. The mean and standard deviation of 7 grapefruits will be 7 times the mean and standard deviation of a single grapefruit, respectively.

b. If G represents the weight of a single grapefruit, then

R = G + G + G

= 3G.

The mean and standard deviation of R will therefore be 3 times the mean and standard deviation of a single grapefruit, respectively.

c. If T represents the total weight of all 7 grapefruits, then

Q = T - R

= 7G - 3G

= 4G.

The mean and standard deviation of Q will be 4 times the mean and standard deviation of a single grapefruit, respectively.

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The length of AC is 5√17 cm. The height of the pyramid is 5√5 cm. The angle between VC and the base ABCD is approximately 25.84°.The angle AVB is approximately 29.9°The angle AVC is approximately 32.5°.

Given information:

In the square-based pyramid, V is vertically above the middle of the base, AB = 10 cm and VC = 20 cm.

There are different parts to the problem statement, which will be addressed one by one.

Let's begin with the first part of the problem statement.

a) AC we have a square pyramid where the vertex is directly above the center of the square.

Given that the distance VC is 20cm and AB is 10cm, let's consider the right-angled triangle ACD.

We can use the Pythagorean theorem to find the length of AC,AC² = AD² + DC²AC² = (AB/2)² + VC²AC² = (10/2)² + 20²AC² = 25 + 400AC = √425AC = 5√17 cm.

b) Height of the pyramid we can calculate the height of the pyramid by finding the length of the line AV.

Since the vertex V is vertically above the center of the square base, the height and the line from the center of the base to V are perpendicular.

The height of the pyramid is the length of AV.

We can use the right-angled triangle AVD to find the length of

AV,AV² = AD² + DV²AV² = AD² + (VC - DC)²AV² = (AB/2)² + (VC - DC)²AV² = 25 + 10²AV² = 25 + 100AV² = 125AV = √125 cm = 5√5 cm)

(c) Angle between VC and the base ABCD we can find the angle between VC and the base ABCD by using the right-angled triangle ACD that we considered in part (a) of this problem statement.

The angle between VC and AC can be calculated as follows :tan θ = DC/ADθ = tan⁻¹(DC/AD)Since AC = 5√17 cm, we can find the length of DC by subtracting 10/2 from AC,DC = AC - 5DC = 5(√17 - 1) cm.

Therefore,θ = tan⁻¹(DC/AD)θ = tan⁻¹((5(√17 - 1))/10)θ = 25.84° (nearest degree).

d) Angle AVB we can find the angle AVB by considering the right-angled triangle ABV, cos θ = AB/AVθ = cos⁻¹(AB/AV)θ = cos⁻¹(10/(5√5))θ = 29.9° (nearest degree).

e) Angle AVC we can find the angle AVC by considering the right-angled triangle AVD,cos θ = DV/AVθ = cos⁻¹(DV/AV)DV = VC - DC = 5(√17 - 1) cos θ = (5(√17 - 1))/√125θ = cos⁻¹((5(√17 - 1))/√125)θ = 32.5° (nearest degree) .

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The minimum score required for admission to the university is 3.6.

To find the minimum score required for admission to the university, we need to determine the GRE score that corresponds to the 40th percentile of the distribution.

First, we need to find the z-score that corresponds to the 40th percentile. We can use a standard normal distribution table or a calculator to find this value.

Using a standard normal distribution table, we can look up the z-score that corresponds to a cumulative area of 0.40, which is approximately 0.25.

The z-score corresponding to a cumulative area of 0.25 is -0.25.

Next, we can use the formula for transforming a z-score to a raw score:

z = (x - mu) / sigma

where:

z is the z-score (-0.25 in this case)

x is the raw score we want to find

mu is the mean of the distribution (3.8 in this case)

sigma is the standard deviation of the distribution (0.8 in this case)

Solving for x, we get:

\(x = z\times sigma + \mu\)

\(x = (-0.25)\times 0.8 + 3.8\)

x = 3.6.

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The probability of observing the experiment result, a sample mean, for example, or something more unusual just by chance if the null hypothesis is true is the definition of "P-Value."

A null hypothesis is a sort of statistical hypothesis which asserts that there is no statistical significance in a particular set of observations.

Using sample data, hypothesis testing is performed to determine the believability of a theory. It really is expressed as H0 and is also known to simply as "null."

Some key features regarding null hypothesis are-

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Answer:

B.

Step-by-step explanation:

Divide ( x number of pages) by (x number of minutes) for all answers.

Day 1: 20 divided by 35= around 0.57 pg per minute

Day 2: 80 divided by 15= 5.3 pg per minute

Day 3: 46 divided by 65= around 0.70 pg per minute

Day 4: 35 divided by 26= 1.34 pg per minute.

Therefore, B is your answer!

Crown me brainliest pls!

Answer:

6,4

Step-by-step explanation:

F is the whole way out there, away from all the other dots and has a 6,4 coordinate.