can someone pls help me !!

Answer:

456000

Step-by-step explanation:

cause

Answer:

7.

Step-by-step explanation:

The slope of a line perpendicular to a line of slope m is -1/m.

So the answer is  -1 / -1/7

= -1 * 7/-1

= 7.

Answer:

0.45 / \(\frac{9}{20}\)

Step-by-step explanation:

\((-\frac{1}{2} )(\frac{3}{5} )+\frac{3}{2} -\frac{3}{5} (\frac{5}{4} )\)

\(=\frac{9}{20} / 0.45\)

Answer:

C. -12-(-15) =3

Step-by-step explanation:

you subtract the two numbers to get the distance.

answer: 5%

explanation: subtract the principal from the total amount, then divide the difference by the principal

>> 73.50 - 70 = 3.50

3.50 / 70 = 0.05

0.05 x 100 = 5%

Answer:

Well the guy who answered on top is wrong.

But the answer is (D) F-1 (X) = 7x - 3

Step-by-step explanation:

Well took the test and got the answer wrong for the guy on top and took it again and got it right...

The inverse of the function f(x) is equivalent to -

f ⁻¹(x) = 7(3 - x).

Given is the function -

f(x) = 3 - x/7

The given function is -

f(x) = 3 - x/7

we can write -

y = 3 - x/7

Replace [y] and [x], as follows -

x = 3 - y/7

y/7 = 3 - x

y = 7(3 - x)

f ⁻¹(x) = 7(3 - x)

Therefore, the inverse of the function f(x) is equivalent to -

f ⁻¹(x) = 7(3 - x).

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Answer: $119.00

Step-by-step explanation:

To calculate the pay for the day, we need to determine the number of hours worked in the morning and the number of hours worked in the afternoon.

The morning shift starts at 8:00 AM and ends at 12:15 PM, which is a total of 12:15 - 8:00 = 4 hours and 15 minutes. The afternoon shift starts at 1:00 PM and ends at 5:15 PM, which is a total of 5:15 - 1:00 = 4 hours and 15 minutes.

Since there are 60 minutes in an hour, the total number of hours worked in the morning is 4 hours + 15 minutes / 60 minutes = 4.25 hours. The total number of hours worked in the afternoon is also 4.25 hours.

The total number of hours worked on the day is 4.25 + 4.25 = 8.5 hours.

To find the pay for the day, we need to multiply the number of hours worked by the wage rate:

Pay = 8.5 hours * $14/hour = $119

Rounding this number to the nearest hundredth gives us $119.00.

Answer:

Step-by-step explanation:

something like this  Gigi,

y = -5(\(x^{2}\))

Answer:

The answer is -8

Step-by-step explanation:

First, add 8 to both sides to separate the 3r from the rest of the terms. Now you have 3r = -24. Divide both sides by 3, and now you have r = -8

Answer:

r = -8

Step-by-step explanation:

3r-8 = -32

add 8 to -32

3r = -24

divide 3 by -24

and you get -8

Answer:

I'm gonna say the top one bc the other two aren't correct :)

The hypothesis test confirms that the number system reduces the standard deviation in wait times.

The implementation of a number system at the deli has significantly reduced the standard deviation in wait times compared to the previous method of customers standing in line. The standard deviation for the ticket system is measured at 4.5 minutes, whereas it was 6.8 minutes before the system was established. To determine whether this reduction is statistically significant, a hypothesis test can be conducted.

In a hypothesis test, we set up two competing hypotheses: the null hypothesis (H0) and the alternative hypothesis (Ha). In this case, the null hypothesis would state that there is no significant difference in the standard deviation of wait times between the old method and the numbered ticket system, while the alternative hypothesis would state that there is a significant reduction.

To test these hypotheses, we would calculate the test statistic and compare it to the critical value determined by the level of significance (α). Given that α = 0.05 in this case, we would evaluate whether the test statistic falls within the critical region or not. If it does, we would reject the null hypothesis and conclude that the number system does reduce the standard deviation in wait times.

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The scatterplot with the least squares line provides insights into the relationship between average annual global surface temperature and the years from 2000 to 2015, allowing us to assess trends, strength of correlation, and make predictions within certain limitations.

The scatterplot represents the relationship between the average annual global surface temperature, in degrees Celsius, and the corresponding years from 2000 to 2015. The line drawn on the plot is the least squares line, which is the best fit line that minimizes the overall distance between the observed data points and the line.

The least squares line is determined using a statistical method called linear regression. It calculates the equation of a straight line that represents the trend in the data. This line serves as a mathematical model to estimate the average temperature based on the year.

By analyzing the scatterplot and the least squares line, we can make several observations. Firstly, we can see whether the temperature has been increasing, decreasing, or remaining relatively stable over the given years. If the slope of the line is positive, it indicates a positive correlation, implying that the temperature has been increasing. Conversely, a negative slope suggests a decreasing trend.

Additionally, we can evaluate the strength of the relationship between temperature and time by examining how closely the data points cluster around the line. If the points are closely grouped around the line, it suggests a strong correlation, indicating that the line is a good representation of the data. On the other hand, if the points are more scattered, the correlation may be weaker.

Furthermore, the line can be used to predict the average annual global surface temperature for future years beyond the data range of 2000 to 2015. However, it's important to note that such predictions should be made with caution and considering other factors that may affect global temperatures, such as climate change and natural variability.

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Question

The given scatterplot shows the average annual global surface temperature, in degrees celsius, for each year from 2000 to 2015. the line drawn is the least squares line for the data set.

The Wald test is a statistical test that can be used to test the significance of a group of coefficients in a multiple regression model.

The test statistic is calculated as the ratio of the estimated coefficient to its standard error. If the test statistic is significant, then the null hypothesis that the coefficient is equal to zero can be rejected.

Suppose we have a multiple regression model with three independent variables: age, gender, and education. We want to test the hypothesis that the coefficients for age and education are both equal to zero. The Wald test statistic would be calculated as follows:

Test statistic = (Estimated coefficient for age) / (Standard error of estimated coefficient for age) + (Estimated coefficient for education) / (Standard error of estimated coefficient for education)

If the test statistic is significant, then we can reject the null hypothesis that the coefficients for age and education are both equal to zero. This would mean that there is evidence that age and education are both associated with the dependent variable.

The Wald test is a powerful tool that can be used to test the significance of a group of coefficients in a multiple regression model. However, it is important to note that the test statistic is only valid if the assumptions of the multiple regression model are met. If the assumptions are not met, then the p-value of the Wald test may be inaccurate.

Here are some of the assumptions of the multiple regression model:

* The independent variables are independent of each other.

* The dependent variable is normally distributed.

* The errors are normally distributed.

* The errors have constant variance.

If any of these assumptions are not met, then the Wald test may not be accurate.

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Answer:

x=6

Step-by-step explanation:

10-4=6

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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Answer:

i think its 65°46

Step-by-step explanation:

have a nice dayyyy

Answer:

Step-by-step explanation:

x + 2 + 57 = 90

x + 59 = 90

x = 31°

x + 2 = 33°

Answer:

x=31

Step-by-step explanation: Since we know Angle A and Angle B are complementary and complementary angles add up to 90 we can set up an equation:

x+2+57=90

x+59=90

x=31

Hope this helps :)

Volume of the rectangular prism = 1,728 in³

Volume of the rectangular prism = width × height × length

width = 12 in

length = 18 in

height = 8 in

Volume of the rectangular prism = 12 in × 8 in × 18 in

Volume of the rectangular prism = 1,728 in³

Answer:

a and e jfdjjxjccjddjdjdjdjdjjdjdidie

The time spent by member E is an outlier. Because of the outlier, the mean will be greater than the median.

The mean of a data-set is given by the sum of all observations in the data-set divided by the cardinality of the data-set, which represents the number of observations in the data-set.

The mean considers all the elements in the data-set, while the median considers only the central element of the data-set, hence the median is not affected by outliers while the mean is.

The outlier 8 is a high outlier, hence the mean will be greater than the median.

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The slope of the line that passes through the given points (-5, 6) and (-2, 4) as required in the task content is; -2 / 3.

It follows from the task content that the slope of the line that passes through the given points; (-5,6) and (-2,4) be determined as required.

On this note, since the slope, otherwise termed the average rate of change is given by the formula;

Slope, m = ( y₂ - y₁ ) / ( x₂ - x₁ )

Therefore, given the points; (-5, 6) and (-2, 4), the required slope of the line is;

m = ( 4 - 6 ) / ( -2 - (-5) )

m = -2 / (-2 + 5)

m = -2 / 3

Therefore, the required slope of the line which passes through the given points is; -2 / 3.

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Answer:

Perimeter = 10

Step-by-step explanation:

Horizontally 3 units; vertically 2 units.

If h is horizontal measure, and v is vertical measure, then perimeter is 2(h+v) and area is hv.

[4] The Perimeter of the rectangle is how many units?

Perimeter formula ; 2(h+v)

2(3+2) = 10

~Learn with Lenvy~

Answer:

see the attachment!

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Answer:

6.5

Step-by-step explanation:

Answer:

its box 1,3,5

Step-by-step explanation:

Answer:

commutative property

Step-by-step explanation:

Answer:

c\

Step-by-step explanation:

distributive property

Answer:

Step-by-step explanation:

The product of a negative two and a positive three is equal to negative six (-6).