In Europe, the speed limits on the highways are posted in kilometers per hour. In the United States, the speed limits are posted in miles per hour. What is the equivalent rate of 65 miles per hour in kilometers per hour?

Answer:

Point, line and plane

Step-by-step explanation:

Words are defined using other defined words or terms. However, these three terms are very difficult to find other words to describe. Without using other terms, we create circular definitions; thus these are called the "undefined terms" of geometry.

Hope this helps :)

Answer:

a) GF = EH = 8

b) Angle G = Angle E = 60°

c, d) Angle H = Angle F = 180° - Angle E = 120°

To check the result: the sum of all angles in a parallelogram is equal to 360°:

Angle E + Angle F + Angle G + Angle H = 60 + 120 + 60 + 120 = 180 + 180 = 360°

Step-by-step explanation:

they need to add up to -56

and multiply to 180

On the 19th day, the lily pad covered half the pond.

The reason behind this is, If the lily pad doubles in size every day, then on the 20th day it will be twice as large as it was on the 19th day. That means it was already covering half the pond on the 19th day.

In this puzzle, the water lily is described as doubling in size every day. This means that on the first day, the lily pad is small, but by the second day, it has doubled in size. On the third day, it doubled in size again, and so on. By the 20th day, the lily pad has grown so large that it covers the entire pond.

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Answer:

D hope this kinda helped:)

Step-by-step explanation:

The example that meets the given specific conditions that 3 × 3 nonzero matrices and ab = 033 are a = \(\left[\begin{array}{ccc}0&0&0\\0&0&0\\1&0&0\end{array}\right]\) and b = \(\left[\begin{array}{ccc}0&1&1\\0&0&0\\0&0&0\end{array}\right]\).

To get such examples where matrix's configuration is 3 x 3 and the multiplication of the matrix is equal to zero, we need to take such values on a specific position so that the multiplication results in zero. We have been given certain conditions, which needs to be taken care of.

According to the question given, a and b are 3 × 3 nonzero matrices:

a = \(\left[\begin{array}{ccc}0&0&0\\0&0&0\\1&0&0\end{array}\right]\)

b = \(\left[\begin{array}{ccc}0&1&1\\0&0&0\\0&0&0\end{array}\right]\)

Now, multiplication of a and b results:

ab = \(\left[\begin{array}{ccc}0&0&0\\0&0&0\\1&0&0\end{array}\right] * \left[\begin{array}{ccc}0&1&1\\0&0&0\\0&0&0\end{array}\right]\)

ab = \(\left[\begin{array}{ccc}0*0 + 0*0 + 0*0& 0*1 + 0*0 + 0*0&0*1 + 0*0 + 0*0\\0*0 + 0*0 + 0*0&0*1 + 0*0 + 0*0&0*1 + 0*0 + 0*0\\0*0 + 0*0 + 1*0&0*1 + 0*0 + 0*0&0*1 + 0*0 + 1*0\end{array}\right]\)

ab = \(\left[\begin{array}{ccc}0&0&0\\0&0&0\\0&0&0\end{array}\right]\)

Therefore, the example that meets all the given specific conditions in the question are a = \(\left[\begin{array}{ccc}0&0&0\\0&0&0\\1&0&0\end{array}\right]\) and b = \(\left[\begin{array}{ccc}0&1&1\\0&0&0\\0&0&0\end{array}\right]\).

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Answer:

0, 5%, 1/5, 5

5% is equal to 5÷100=0,05

1/5 is equal to 1÷5=0,2

Answer:

20 cents/minute

Step-by-step explanation:

We need to convert both units

1 dollar is 100 cents

12 dollars * 100 cents/1 dollar = 1200 cents

1 hour  = 60 minutes

1 hours * 60 minutes / 1 hour = 60 minutes

12 dollars/ hour  = 1200 cents / 60 minutes

Simplify

20 cents/minute

Answer: A. 20 cents per minute

Unit rate given: $12 per hour

Conversion:

$1 = 100 cents

$12 = 1200 cents

1 hour = 60 minutes

Solving steps:

amount in cents/time in minutes = 1200/60 = 20 cents per minute

In data analytics, a population refers to all possible data values in a certain dataset

Data analysis is a systematic computer-aided analysis of data or statistics. [1] It is used to discover, interpret, and convey meaningful patterns in the data. It also includes applying data patterns for effective decision-making.

It may be useful in areas where there is a lot of recorded information. The analysis relies on the simultaneous application of statistics, computer programming, and operations research to quantify performance.

Organizations can apply analytics to business data to describe, predict, and improve business performance. Areas within the analysis include descriptive analysis, diagnostic analysis, predictive analysis, prescriptive analysis, and cognitive analysis in particular. [2] Analysis can be applied in various fields such as marketing, management, finance, online systems, information security, and software services.

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Answer:

  1/5

Step-by-step explanation:

  1/3 of 3/5 is 1/5

The amount of flour you need is 1/5 cup.

The equation to determine the length and width of the rug is

28 = w² + 12w

Since, the shape of the rug is rectangle, therefore area of rectangle has been used to obtain the solution.

What is a rectangle?

Rectangle is a flat, two-dimensional shape, having four sides and vertices with opposite sides being equal and parallel. We may easily represent a rectangle in an XY plane by using its length and breadth as the arms of the x and y axes, respectively.

Rectangles can also be referred to as parallelograms because their opposite sides are equal and parallel.

We are given a rectangular rug with an area of 28 square feet.

Also, the rug is 12 feet longer than it is wide.

So,

Let 'l' be the length of the rug and 'w' be the width of the rug

As given, Length is 12 feet longer than its width

Therefore, l = w + 12

We know Area of rectangle = Length * Width and area is given to be 28 square feet.

So,

⇒28 = (w + 12)w

⇒28 = w² + 12w

Hence, the equation to determine the length and width of the rug is

28 = w² + 12w.

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Question: Tammy has a rectangular rug with an area of 28 square feet. The rug is 12 feet longer than it is wide.

Create an equation to determine the length and the width of the rug.

Answer:

it is 100.459

Step-by-step explanation:

Answer:

458.75

Step-by-step explanation:

what you have to do is add 308.75 and 150 to get 458.75

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Answer:

the bus will take approximately 33.33 minutes to cover 5km at a speed of 9 km/h.

Step-by-step explanation:

To find out how many minutes it will take for a bus to cover 5km at a speed of 9km/h, we need to use the formula:

time = distance / speed

In this case, the distance is 5 km, and the speed is 9 km/h. To convert the speed to km/min we can divide 9 by 60.

9 km/h = 0.15 km/min (by dividing 9 by 60)

Now we can substitute the distance and speed into the formula:

time = 5 km / 0.15 km/min = 33.33 min

So, the bus will take approximately 33.33 minutes to cover 5km at a speed of 9 km/h.

It's important to note that in this problem km/h is the speed and the distance is given in km, so you need to convert it to km/min in order to find the time. Also the time you get will be in minutes.

We must find the flowerbed's area in order to calculate the suggested mulch coverage for a flowerbed with a 20-foot radius. Given that the function's vertex is located at the coordinates (0, 0.5), it is likely a quadratic function with the vertex form y = a(x - h)2 + k, where (h, k) stands for the vertex coordinates.

We may enter these values into the vertex form equation given that the vertex is at (0, 0.5):

y = a(x - 0)^2 + 0.5

y = ax^2 + 0.5

Since the area of the flowerbed is represented by this equation, we may evaluate it for the specified radius of 20 feet:

area = a(20)^2 + 0.5

We circle the area to the closest inch to determine the recommended amount of mulch.

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Answer:

the answer is C

Step-by-step explanation:

Answer:

a set of four data pairs with a correlation coefficient r = –0.8

Step-by-step explanation:

edg 2022

Answer:

\(M=\frac{280}{140} =2\)

\(C=2+5=7\)

(2 Movies and 7 Commercials)

Step-by-step explanation:

Let's represent every time Carson's songs are played in a commercial as C and in movies as M.

Set up the following equations:

\(20C+120M=380\)  (1)

\(C=M+5\)   (2)

Substitute equation 2 for equation 1:

\(20(M+5)+120M=380\)

Distribute:

\(20M+100+120M=380\)

Simplify:

\(140M=280\)

Divide both sides by 140:

\(M=\frac{280}{140} =2\)

Substitute 2 as M back into either original equation, I will use (2):

\(C=2+5=7\)

Answer:

Step-by-step explanation:

Answer:

Alternative Hypothesis

The  hypothetical demand curve for tickets to a particular rock concert is given in the image attached.

According to Samuelson: theory, the law of demand states that people buy more at lower prices and less at higher prices when other things remain constant.

Note that by using the image,

Prices of ticket (cent)    Demand by consumer

5                                   35

4                                  30

3                                    70

2                                    80

1                                    95

Therefore, "Demands curves show how much people will buy the ticket at different prices over time." The Curve shows consumer purchases at different prices.

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Answer:

answer is 1st one

Step-by-step explanation:

because I think so it is the additive inverse

Answer:

20 x 2=40

10 x 4=40  

8 x 5= 40

so 2 bags of  balloons  

     4 bags of horns

     5 packages of candy

Step-by-step explanation:

Therefore , the solution of the given problem of standard deviation comes out to be  the width of the confidence interval for a making a mark parameter decreases.

Variance is measured in statistics using variance. The average variation between the data and the mean is calculated by taking the square root of that value. By comparing each value to the mean, it incorporates all data points in its computations, in contrast to some other quantitative measures of variability. Variations may occur due to internal or external factors, and they may include things like unintentional errors, exaggerated expectations, and changing commercial or economic conditions.

Here,

The standard error and margin of error drop when the sample size rises, keeping all other factors constant.

As a result, the width of the confidence interval for a making a mark parameter decreases.

Thus, The width of an error range for a papulation characteristic will increase as sample size rises, keeping all other factors constant.

Therefore , the solution of the given problem of standard deviation comes out to be  the width of the confidence interval for a making a mark parameter decreases.

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To solve this differential equation by making the change of variable u = x + y, we first need to find an expression for y' in terms of u.

Using the chain rule, we have:

du/dx = d/dx (x + y) = 1 + dy/dx

Solving for dy/dx, we get:

dy/dx = du/dx - 1

Substituting into the given differential equation, we have:

5(du/dx - 1) = x + y

Multiplying both sides by dx and rearranging, we get:

5 du/(x + y - 5) = dx

Now we can integrate both sides with respect to their respective variables.

On the left-hand side, we use the substitution u = x + y, which gives:

5 du/u-5 = dx

Integrating both sides yields:

5 ln|u-5| = x+C1

where C1 is a constant of integration.

Substituting back for u = x + y, we have:

5 ln|x+y-5| = x+C1

which can be written as:

ln|x+y-5|^5 = x+C2

where C2 = 5C1.

Exponentiating both sides gives:

|x+y-5|^5 = e^(x+C2) = Ce^x

where C = e^C2.

Taking the fifth root of both sides and using the absolute value notation, we finally arrive at the general solution:

|x+y-5| = (Ce^x)^(1/5)

or

x + y - 5 = ±(Ce^x)^(1/5)

where the sign of the right-hand side depends on the sign of x + y - 5.

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Answer:

-12

Step-by-step explanation:

-1(-2)-14

2-14=-12

Answer:

-12

Step-by-step explanation:

you should give the other person brainliest

the percentage increase of members at the skating club is 28%

"relative change = (final value - initial value)/ initial value"

percent change = relative change × 100

For given example,

There were 200 members at a skating club. After some new members went in, there were 256 members altogether at the skating club.

initial value (a) = 200

final value (b) = 256

So, relative increase is,

⇒ R = (b - a)/a

⇒ R = (256 - 200)/200

⇒ R = 56/200

⇒ R = 0.28

So, the percent increase is,

⇒ P = R × 100

⇒ P = 0.28 × 100

⇒ P = 28%

Therefore, the percentage increase of members at the skating club is 28%

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The expression (3.6 * 10^-5) / (1.8 * 10^2) can be calculated as = 2 * 10^-7

A canonical, normal, or standard form of a mathematical object is a conventional manner of presenting that item as a mathematical expression in mathematics and computer science. It is frequently the one that gives the simplest representation of an item and allows it to be identified in a unique fashion.

A quantity is said to be stated in standard form if it is written as the product of a power of ten and a number higher than or equal to one but less than ten (or scientific notation).

The expression (3.6 * 10^-5) / (1.8 * 10^2) can be calculated as follows:

=3.6 * 10^-5 / (1.8 * 10^2)

= (3.6 / 1.8) * (10^-5 / 10^2)

= 2 * 10^-7

Therefore, the answer in standard form is 2 * 10^-7.

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Answer:

Less than

Step-by-step explanation:

One quart is .25 of a gallon

Answer:

x > -3

Step-by-step explanation:

-2x + 4 > 10

-2x (+ 4 - 4) > 10 - 4

-2x > 6

-2x/-2 > 6/-2

x > -3

Answer:

× < -3

Step-by-step explanation:

Move constant to the right hand side and change its sign

-2x > 10 - 4

Subtract the numbers

-2x > 6

Divide both sides by -2 and flip the sign

x < -3

25463 grams radioactive kind of americium will be left after 2160 years.

We know that Half Life Formula will be,

\(N=I(\frac{1}{2})^{\frac{t}{T}}\)

where N is the quantity left after time 't'; 'T' is the half life of the substance and 'I' is the initial quantity of the substance.

Given that the initial quantity of the substance (I) = 814816 grams

Half life of the radioactive kind of americium is (T) = 432 years

The time elapsed (t) = 2160 years

Now we have to find the quantity left that is the value of N for the given values.

N = \(814816\times(\frac{1}{2})^{\frac{2160}{432}}=814816\times(\frac{1}{2})^5\) = 814816/32 = 25463 grams.

Hence 25463 grams radioactive kind of americium will be left after 2160 years.

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