Please help. I don’t understand any of these

Step-by-step explanation:

1 min 4 cals

60 cals how many mins?

1min. 60cals

____. × _______ = 15 mins

4cals. ?mins

we simplify the matter by simplifying 60 with 4 and striking out cals... then we will have 15 on the top right and then we multiply 1 and 15 together at the end we add the mark of the answer which is (min).

Answer:

i hope this helps

Step-by-step explanation:

it is 1 1/2

the answer is 1 1/2

Answer:( D ) 1 1/2

Step-by-step explanation:

Empirical, A knowledge of statistics is essential for anyone who wants to make informed decisions based on empirical evidence.

A knowledge of statistics helps us make decisions based on empirical evidence. Empirical evidence is data that has been collected through observation and experimentation, and statistics is a method for analyzing and interpreting this data. By using statistical tools and techniques, we can draw conclusions from empirical evidence and make informed decisions based on this information.

Statistics plays a crucial role in modern society, from medicine and public policy to business and finance. A knowledge of statistics enables individuals to understand and analyze data, to make informed decisions based on empirical evidence, and to communicate findings to others. Statistics helps us to quantify uncertainty and variability, to identify patterns and trends, and to make predictions based on past data. By using statistical methods, we can determine the probability of certain outcomes, assess risks and benefits, and evaluate the effectiveness of interventions or policies. For example, in medical research, statistics is used to test the effectiveness of new treatments or therapies, to determine the safety of drugs, and to identify risk factors for diseases. In public policy, statistics is used to analyze demographic trends, to assess the impact of social programs, and to inform decision-making around issues such as climate change or public health.

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Roger has enough stainless steel pipe to replace the chimney liner, with a slight surplus remaining.

To determine if Roger has enough stainless steel pipe for the chimney liner, we need to convert the given measurements to a consistent unit of measurement. Since the length of the liner required is given in feet, we need to convert the 400 inches of stainless steel pipe to feet.

There are 12 inches in a foot, so 400 inches is equal to 400/12 = 33.33 feet (approximately).

Comparing this converted length of the stainless steel pipe (33.33 feet) with the length of the liner required (33 feet), we can see that Roger does indeed have enough pipe. In fact, he has slightly more than required.

Since the length of the liner required is 33 feet and Roger has 33.33 feet of stainless steel pipe available, there is a surplus of approximately 0.33 feet (about 4 inches) of pipe. This additional length is more than enough to cover any potential measurement errors or adjustments needed during the installation process.

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Answer:

Oh jeez I forgot most of this, but I believe it is Complementary

Step-by-step explanation:

Answer:

32+58+90

Step-by-step explanation:

32 and x is a 90 degree angle since its a right angle and right angles add up to 90

Answer:

53 minutes

Step-by-step explanation:

Answer:

240 copies in 30 minutes

Step-by-step explanation:

they gave us the info that it makes 40 copies in 5 minutes, divide 40/5 and you get 8, which tells us that it makes 8 copies per minute.

multiply the 8 copies that it can make in a minute by the 30 minutes, 30*8 and you get 240 copies

hope this helps :)

The t-distribution with 2 degrees of freedom is:

T = (1.4X1 + 0.2X3) / (sqrt(2/3)).

To construct a t-distribution with 2 degrees of freedom using X1, X3, and Xs, we can use the formula:

T = (Y1 - Y2) / (sqrt((S1^2 + S2^2 - 2S12) / n))

where Y1 and Y2 are the sample means of X1 and X3, and Xs, respectively, S1 and S2 are the sample standard deviations of X1 and X3, respectively, S12 is the sample covariance between X1 and X3, and n is the sample size.

First, let's find the sample means, standard deviations, and covariance:

Y1 = 0.8X1 + 0.6X3 + 0.0Xs = 0.8X1 + 0.6X3
Y2 = -0.6X1 + 0.8X3 + 0.0Xs = -0.6X1 + 0.8X3
Y3 = 0.0X1 + 0.0X3 + 1.0Xs = Xs

The sample mean of X1 is 0, and the sample mean of X3 is also 0, since both are standard normal. The sample mean of Xs is also 0, since it is a standard normal variable.

The sample standard deviation of X1 is 1, and the sample standard deviation of X3 is also 1, since both are standard normal. The sample standard deviation of Xs is also 1, since it is a standard normal variable.

The sample covariance between X1 and X3 is 0, since they are independent and identically distributed.

Therefore, we have:

Y1 = 0.8X1 + 0.6X3
Y2 = -0.6X1 + 0.8X3
Y3 = Xs
S1 = 1
S2 = 1
S12 = 0
n = 3

Plugging these values into the formula, we get:

T = (0.8X1 + 0.6X3 - (-0.6X1 + 0.8X3)) / (sqrt((1^2 + 1^2 - 2(0)) / 3))
T = (1.4X1 + 0.2X3) / (sqrt(2/3))

This is a t-distribution with 2 degrees of freedom, since we have n - 1 = 2 degrees of freedom.

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The details are shown below.  When sales is less than the monthly deviation from the average exists at

Data has a symmetrical distribution with no skew in normal distributions. As one moves away from the centre, values start to taper off and the majority of values are concentrated in this area. Your data's average deviation from the distribution's centre is indicated by the standard deviation.

July ----- 289.17

August ----- 339.17

September ----- 14800.17

October ----- -65.83

November ----- 10690.17

December ----- -480.83

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Answer:

Step-by-step explanation:

SOLVING

================================================================

6=-2(7-c)

Use distribution to multiply -2 by parenthesis

6=-14+2c

Add to both sides 14

20=2c

Divide 2 into both sides

10=c

5(h-4)=8

Use distribution to multiply 5 by the parenthesis

5h-20=8

Add to both sides 20

5h=28

Divide 5 into both sides

\(h=\frac{28}{5}\)

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Answer: The answer is 11m + -3v.

16.  Valid

Reason: congruency can be represented by the symbol ≅ hence  the statement still reads <1 and <2 are congruent.

17. Invalid

Reason: A rectangle also has four right angles, It is only a square when all the sides are equal.

18. Valid

Reason: congruency can be represented by the symbol ≅ hence the statement still reads <JKM and <MKL are congruent.

19. Valid

Reason: The conclusion of the battery dying is in support of the premise giving which is leaving the light on when the car is off.

20.Valid

Reason: The conclusion, Dante obtained a part time job is in line with the premise that obtaining a pert time job, is a way to afford a car payment

21. Valid

Reason: The premise which has that selling 75% of the prom tickets will make the prom hold at country club is fulfilled, hence the prom will be held at the country club

An argument is vailed when the premises or conditions of the argument are all true. when some part of the argument is not true then it will lead to invalid conclusion.

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El precio resultante con descuento de 12 % es igual a 342.32 pesos.

En este problema tenemos que determinar el precio resultante, el cual es igual al precio inicial menos el descuento. A continuación, se presenta la siguiente expresión:

x = 389 · (1 - 12/100)

x = 389 - 46.68

x = 342.32

El precio resultante con descuento de 12 % es igual a 342.32 pesos.

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Step-by-step explanation:

Set up a proportion:

26.5/x = 17/58

Cross multiply and you get:

17x = 1537

x = 90.4

So the measure of PQ is 90.4

Answer:

90.41

Step-by-step explanation:

you need to apple the thales's theorem

which is the comparison like this

ML=PQ JM= QN

Then you multiply in a crossed way like this

26.5 times 58= 1537

then you need to divide it by 17

1537/17= 90.41

The value of an independent variable from the prior period is referred to as a lagged variable. Therefore, the correct option is A.

This is because the value is based on data from a previous time period and is used to predict the current value of the dependent variable. A lagged variable is important in time series analysis, where the values of a variable over time are analyzed to identify trends and patterns.

By including lagged variables in a model, we can account for the influence of past values on the current value, which can help to improve the accuracy of our predictions. Therefore, when working with time series data, it is important to include lagged variables as predictors in our models. Hence, the correct answer is option A.

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Answer:

Step-by-step explanation:

If one cleaning company's cost can be calculated by the expression 75 + 50x, where x is the amount of hours they spend cleaning and another cleaning company's cost can be calculated using the expression 50 + 75x, then to calculate how long each company will have to clean to cost the same amount, we will equate both expression of the company cost and solve for x as shown;

On equating:

75 + 50x,  =  75x + 50

collect like terms'

50x-75x = 50-75

-25x = -25

divide both sides by -25

-25x/-25 = -25/-25

x = 1

hence the number of hours each company will have to clean to cost the same amount is 1 hour

The total number of visitors to the zoo that day=3980.

Given:

cost of each ticket for an adult=$25

cost of each ticket for an adult=$10

Total ticket sales one day=$47,750.

⇒$25+$10=47,750

⇒25+10=47,750-----(1)

Also,

c=6a+270

6a-c=-270------(2)

multiplying eq(2) with 10 we get:

60a-10c=-2700----(3)

Adding eq(1) and eq(3) we get

25a+10c=47,750

60a-10c=-2700

--------------------------

85a=45050

--------------------

To calculate a value just divide 45050 by 85 we get

a=45050/85

a=530

Now to get the value of c substitutes a value.

c=60(530)+270

c=3450

Number of Adult visitors=530

Number of children visitors=3450

Total Number of visitors=3980.

Therefore, the total number of visitors to the zoo that day=3980.

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Answer: $7,915.98

Step-by-step explanation: This is an exponentially decaying problem, so that means we use the formula ab^x.

The a value is the original price or the starting point, which is 15,000. The b value is the ratio in which it decreases or increases. It is decreasing, so we subtract 12 from 100, which is 88. The ratio should be in decimal form, so it is 0.88. Finally, the x should be the exponent, the amount of times it is getting multiplied by the ratio. So the equation would be 15,000(0.88)^5.

Then, we solve.

0.88 * 0.88 * 0.88 * 0.88 * 0.88 = 0.5277319168

Then 0.5277319168 * 15,000 = 7,915.978752.

Of course, we round to the nearest hundredth, which is 7,915.98. Hope this helped.

Answer:

Stefan

Step-by-step explanation:

Stefan

The given C++ code implements the Greatest Common Divisor (GCD) algorithm using integer division in a loop. To implement this algorithm in assembly language, we can use the same approach of dividing the larger number by the smaller number repeatedly until we get a remainder of zero.

The resulting quotient will be the GCD. A test program can be written in assembly language to call this function several times with different values and display the results on the screen. The assembly language implementation of the GCD algorithm can be done using the same basic approach as the C++ code. We start by taking the absolute values of the input integers, as the GCD is defined for positive integers. We then use a loop that repeatedly divides the larger integer by the smaller integer until the remainder becomes zero. At each iteration, we store the remainder in a temporary variable and swap the values of the two integers. We continue the loop until the smaller integer becomes zero. The last non-zero value of the larger integer will be the GCD. We can use the DIV instruction to perform the integer division, which takes the dividend in the DX:AX register pair and the divisor in a separate register. The quotient is stored in the AX register and the remainder in the DX register.

A test program can be written in assembly language to call the GCD function several times with different values and display the results on the screen. The program can use the INT 21H interrupt to display the output on the console. The input values can be read from the user using the INT 21H interrupt as well. The program can use a loop to repeatedly call the GCD function and display the results until the user decides to exit. Overall, implementing the GCD algorithm in assembly language is straightforward and can be done using simple arithmetic and looping constructs.

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Step-by-step explanation:

\(\frac12(8k+12k^2+6k^3)\\=4k+6k^2+3k^3\\\)

Rearrange into descending order:

\(\boxed{3k^3+6k^2+4k}\)

Answer:

7 - 3

And if you want the difference it is 4

Step-by-step explanation:

because difference means subtract

The value of the integral ∫√x/(x - 4) dx from 9 to 16 is 3.022

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

∫√x/(x - 4) dx from 9 to 16

The above expression can be integrated using integration by parts method

When integrated, we have

∫√x/(x - 4) dx = 2(√x - ln(√x + 2) + ln(|√x - 2|))

Recall that the x values are from 9 to 16

This means that

∫√x/(x - 4) dx = 2(√16 - ln(√16 + 2) + ln(|√16 - 2|)) - 2(√9 - ln(√9 + 2) + ln(|√9 - 2|))

So, we have

∫√x/(x - 4) dx = 2(4 - ln(4 + 2) + ln(|4 - 2|)) - 2(3 - ln(3 + 2) + ln(|3 - 2|))

Solving further, we get

∫√x/(x - 4) dx = 2(4 - ln(6) + ln(2)) - 2(3 - ln(5) + ln(1))

Evaluate

∫√x/(x - 4) dx = 3.022

Hence, the value of the integral is 3.022

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9.34% of test-takers had scored over 514.

A. Proportion of students with scores above 514:

To compute the proportion of students who scored over 514, we will need to find out how many standard deviations (σ) from the mean (μ) a score of 514 is.\(z = (X - μ) / σ\), where X is the score, μ is the mean, and σ is the standard deviation.

\(z = (514 - 500) / 10.6 \\≈ 1.32\)

Looking for the probability that \(X > 514\) is the same as looking for the probability that a standard normal random variable Z is greater than 1.32.

\(P(Z > 1.32) = 0.0934 or 9.34%\) of test-takers had scored over 514.

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The time it takes to reach that amount from the exponential function and the given rate is 7.04 minutes.

Exponential equations, as the name suggests, involve exponents. We know that the exponent of a number (base) indicates the number of times the number (base) is multiplied.

In this problem, we don't know if it's growth or decline.

The formula is often given as;

y = a(1 + r)ˣ

This formula is an exponential growth function;

Since this problem involves growth, we will use this formula;

133 = 124(1 + 0.01)ˣ

Solving for x;

x = 7.04

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Answer:

4

Step-by-step explanation:

95 - 12.25 = 82.75

82.75 ÷ 17 = 4.867

-8/5

Remember "rise over run." Rise means the vertical distance and run id the horizontal between the two points.