Find the perimeter of the figures shown below.

The student did better in the test of Geography.

The standard deviation is a measure of the amount of variation or dispersion of a set of values.

To solve this question, we will use the z-score formula to find the w test in which the student scored better. The z-score formula is;

z = (x - μ)/σ

Now, for Geography we have given :

              Test score (x) = 68

                      Mean (μ) = 80

Standard deviation (σ) = 10

Thus, the z-score here will be :

z = (68 - 80)/10

z = -1.2

Similarly, for Mathematics we have given :

              Test score (x) = 249

                      Mean (μ) = 300

Standard deviation (σ) = 34

Thus, the z-score here will be :

z = (249 - 300)/34

z = -1.5

Since the z-score for Geography is less than that of Mathematics, thus, we can conclude that the Geography test is the one in which the student scored better.

To learn more about Standard Deviation visit :

https://brainly.com/question/16985548

#SPJ4

In this function, y = x + 6, the points at x = -2 will be solid and in this function y = 1, there will be a circle at x = - 2. And the correct graph is given below.

A function is an assertion, concept, or principle that establishes an association between two variables. Functions may be found throughout mathematics and are essential for the development of significant links.

The function is given below.

y = x + 6,  x ≤ -2

y = 1, x > - 2

In this function, y = x + 6, the points at x = -2 will be solid and in this function y = 1, there will be a circle at x = - 2.

And the correct graph is given below.

More about the function link is given below.

https://brainly.com/question/5245372

#SPJ1

Answer:

b

Step-by-step explanation:

just move the shape with cordinantes of b

The rule that maps figure 1 onto figure 2 is B. (x,y)→(x-5, y+11)

Function is a type of relation, or rule, that maps one input to specific single output.

In mathematics, a function is an expression, rule, or law that describes the relationship between one variable (the independent variable) and another variable (the dependent variable) (the dependent variable).

If the original function is y = f(x), assuming horizontal axis is input axis and vertical is for outputs, therefore,

Horizontal shift (also called phase shift):

Left shift by c units:

y=f(x+c) (same output, but c units earlier)

Right shift by c units:

y=f(x-c)(same output, but c units late)

The correct option is B.

(x,y)→(x-5, y+11)

Learn more about function here:

https://brainly.com/question/2253924

#SPJ2

Answer:

bye adding it 1000 times = 4560

Step-by-step explanation:

Rashal uses the associative property to rewrite the expression [-3+(-7)]+(-6) the answer is associative property.

It is defined as the combination of constants and variables with mathematical operators.

We have an expression:

= -3+[(-7)+(-6)]

We can use the associative property to group the terms of addition or multiplication.

a + (b + c) = (a + b) + c

After using associative proeprty:

= [-3+(-7)]+(-6)

Thus, Rashal uses the associative property to rewrite the expression [-3+(-7)]+(-6) the answer is associative property.

Learn more about the expression here:

brainly.com/question/14083225

#SPJ1

Answer:

Option B

Step-by-step explanation:

Taking the derivative of the residual function, then applying the normal equation:

[a; b] = (X'*X)^(X'*y)

with

X = [1 1; 2 1; 3 1; 4 1; 5 1]

X' is transpose of X

y = [11; 8; 4; 1; 0]

[a; b] =  [-2.9 13.5]

Answer:

1. 0.00415

2. 5280000

Step-by-step explanation:

1. 4.15x10^-3

1. 0.00415

2. 5.28x10^6

2. 5280000

Answer:

see explanation

Step-by-step explanation:

The perimeter P is the sum of the 4 sides of the rectangle.

The opposite sides of the rectangle are congruent , then

P = 2x + 1 + 2x + 1 + x + x ← collect like terms

P = 6x + 2

Answer; present value of $12,200 to be received 4 years from today, with a discount rate of 5 percent, is $10,027.51.

The present value of $12,200 to be received 4 years from today can be calculated using the formula for present value. The formula is:

Present Value = Future Value / (1 + Discount Rate)^n

Where:
- Future Value is the amount to be received in the future ($12,200 in this case)
- Discount Rate is the interest rate used to discount future cash flows (5 percent in this case)
- n is the number of periods (4 years in this case)

Plugging in the given values into the formula:

Present Value = $12,200 / (1 + 0.05)^4

Calculating the exponent first:

(1 + 0.05)^4 = 1.05^4 = 1.21550625

Dividing the future value by the calculated exponent:

Present Value = $12,200 / 1.21550625

Calculating the present value:

Present Value = $10,027.51

Therefore, the present value of $12,200 to be received 4 years from today, with a discount rate of 5 percent, is $10,027.51.

Learn more about present value calculations:

https://brainly.com/question/12736329

#SPJ11

Answer:

y = -3x + 1/4

Step-by-step explanation:

Answer:

y = x + 15

Step-by-step explanation:

You swim 15 minutes more than a friend.The friend swims x minutes.

The amount of time you swim is 15 more than x.

Your time is y

Therefore y = x + 15 would be the equation.

The value of the correlation coefficient is 0.34. Thus, the option (B) 0.34 is the correct answer.

Given that a researcher measures the relationship between two variables, X and Y.

If SS(XY) = 340 and SS(X)SS(Y) = 320,000, then we need to calculate the value of the correlation coefficient.

Correlation coefficient:

The correlation coefficient is a statistical measure that determines the degree of association between two variables.

It is denoted by the symbol ‘r’.

The value of the correlation coefficient lies between -1 and +1, where -1 indicates a negative correlation, +1 indicates a positive correlation, and 0 indicates no correlation.

How to calculate correlation coefficient?

The formula to calculate the correlation coefficient is as follows:

r = SS(XY)/√[SS(X)SS(Y)]

Now, substitute the given values, we get:

r = 340/√[320000]r = 0.34

Therefore, the value of the correlation coefficient is 0.34. Thus, the option (B) 0.34 is the correct answer.

To know more about correlation coefficient

brainly.com/question/27226153

#SPJ11

Answer:

the correct answer would be p=nRt/v

Step-by-step explanation:

you would devide both sides by v to get the new equation

Step-by-step explanation:

total area is 18 × 20 = 360

but by excluding window it will be less than 360

here U have not given lenght of windows so i can not find answer

Answer:

The base of the ladder from the building is 32 feet

Step-by-step explanation:

The ladder and the building and the ground form a right triangle will ladder being the hypotenuse....

pythagorean theorem      hyp2 = 252 + d2

                                                      41^2 - 25^2 = d^2             d =~~ 32 ft

Round your answer to the nearest foot.

cited from web2.0calc

Monte carlo simulation gets its name from B. random-number assignment.

When the possibility of random variables exists, a Monte Carlo simulation is used to predict the probability of a variety of outcomes. ·

Random number generation is the process of generating a sequence of numbers or symbols that cannot be reasonably predicted better than by random chance, often using a random number generator.

Monte Carlo simulations get their name from gambling, which is entirely dependent on random outcomes. As a result, the answer will be a random number assignment.

Therefore, based on the information illustrated, the correct option is B.

Learn more about random number on:

https://brainly.com/question/251701

#SPJ1

Answer: the numbers are 250 and 931

Step-by-step explanation:

We have two numbers of 3 digits, A and B such that:

A/B = 3.724

A = 3.724*B

now we can divide the 3.724 in two parts

3.724 = 3 + 0.724

A = (3 + 0.724)*B = 3*B + 0.724*B

So, for now we want to find a number B of 3 digits (i will try to find the smallest possible value of B, because we need to multiplicate B by 3.724 to find A), such that:

0.724*B is an integer.

for example, we can start at B = 1000, and then we will start to reduce the value of B

0.724*1000 = 7240 is an integer, this is an even number, this means that we can take B = 500 and we still will get an integer number.

0.724*500 = 362.

Again, we have an even number, so we can take B = 250 and the result will be also an integer number.

0.724*250 = 181.

Ok, stop here, we can suppose B = 250, then we have:

A = 3.074*B = 3.724*250 = 931

Then the numbers are 250 and 931

Answer:

The quantity of the first model is 150 and the second model is 100 that maximize the profit.

Step-by-step explanation:

Let the quantity of first model = x

Let the quantity of second model = y

The cost of the first model = $100

The cost of the second model = $150

Total number of models = 250 units

Total amount to spend on units = $30000

Now form the equations.

x  +  y  = 250

100x + 150y = 30000

Now solve for the x and y.

x = 250 – y

Now insert this value in the 100x + 150y = 30000.

100(250 –y) + 150y = 30000

25000 – 100y + 150y = 30000

50y = 30000 – 25000

50y = 5000

Y = 100

Now insert the Y in x + y = 250

x = 250 – y

x = 250 – 100

x = 150

Therefore, the first model is 150 units and the second model is 100 units that maximize the profit.

To answer this question, we need to know the median and upper quartile of the data set. Once we have these values, we can determine what percentage of the data falls to the right of the median and to the left of the upper quartile.
Let's say the median of the data set is 50 and the upper quartile is 75. To find the percentage of measurements to the right of the median, we need to look at the data values that are greater than 50 and divide that number by the total number of measurements. Let's say there are 40 data values greater than 50 and a total of 100 measurements.

Then, the percentage of measurements to the right of the median would be:

(40/100) x 100% = 40%

To find the percentage of measurements to the left of the upper quartile, we need to look at the data values that are less than or equal to 75 and divide that number by the total number of measurements. Let's say there are 60 data values less than or equal to 75 and a total of 100 measurements. Then, the percentage of measurements to the left of the upper quartile would be:

(60/100) x 100% = 60%


Your answer:
1. 40% of the measurements lie to the right of the median.
2. 60% of the measurements lie to the left of the upper quartile (Q3).

To learn more about quartile : brainly.com/question/17198478

#SPJ11

Answer:

A. 15,840 feet

Step-by-step explanation:

1 mile = 5,280 feet (I think "five tomatoes" is helpful: five tomatoes --> five-two-eight-oh)

multiply both sides of equation by 3: 1 * 3 = 5,280 * 3

simplify: 3 miles = 15,840 feet, which means A is the answer

The equation of the tangent line to the graph of the equation at the given point (1/7, 1) is \(y = 7x - 6/7 + 1.\)

\(y' = (7e7x + 7x - 1)/7xy\)

1. Use implicit differentiation to differentiate both sides of the equation with respect to x:

\(ln 7xy = e7x − y ln 7xy + (7xy) (y') = (7e7x) + (e7x)(7)\)

2. Solve for y':

\(y' = (7e7x + 7x - 1)/7xy\)

3. Plug in the given point to find the slope at that point:

\(y' = (7e(1/7) + (1/7) - 1)/(7*(1/7)*1) = (7 + 1 - 1)/1 = 7\)

4. Use the point-slope form of a line to find the equation of the tangent line:

\(y - 1 = 7(x - 1/7)y = 7x - 6/7 + 1\)

The equation of the tangent line to the graph of the equation at the given point (1/7, 1) is\(y = 7x - 6/7 + 1.\)

Learn more about equation here

https://brainly.com/question/29657992

#SPJ4

Answer:

a -12

Step-by-step explanation:

Answer:

a) -12

Step-by-step explanation:

Subtract 8 from 0, 8 lefts.

Now add (-3) + (-17).

Now add 8 to (-20)

-12 lefts.

Answer: -12

Answer:

Show a photo

Step-by-step explanation:

Answer:

-25 and -4

Step-by-step explanation:

to solve this, you need to use the sum product pattern. this means you're going to take the x factor, 29x and separate it into it's squares.

(x^2+25x)+(4x+100)

then you take out the common factor in each separated equation

x(x+25)+4(x+25)

you see that the items in the parentheses are the same, this means that this is one of the equations you will use when factoring. the rest of the equation that is left out (the common factors) is the other equation

(x+25)(x+4)

to get the zeroes, you set each equation equal to zero and solve

x+25=0           x+4=0

x= -25             x= -4

Step 1

Given;

Required; To find the measure of angle F

Step 2

Answer;

Answer:

\(y=-|x-1|+3\)

Step-by-step explanation:

The graph of the function (\(y=|x|\)) can be described as a perfect (v) shape composed of two lines with the equation (\(y=x\)) and (\(y=-x\)) with a range of (\(y\geq 0\)). In the depicted graph, this function has undergone some transfomrations. The general format for a transformation of an absolute value function is the following;

\(y=(+-)n|x-k|+h\)

The function can be inverted if the sign of (n) is (-). As per the given graph, the function is inverted, thus the answer will have a (-) sign in front of it. One can see that the (n) value has to be (1) or rather not present since the function has no scaling factor.

\(y=-|x|\)

The function has been shifted (k) units to the right, one can see that the given function's vertex is (1) unit to the right, thus the equation of the function has a (1) in the position of (k).

\(y=-|x-1|\)

The function is shifted (3) units up, thus the position of (h) is occupied by a (3).

\(y=-|x-1|+3\)

Therefore the following answer choice is correct, as it fits all of the requirements;

\(y=-|x-1|+3\)

The estimated value of the explanatory variable is not statistically significant at the 5%-level if a. the t-statistic is greater than 2.5.

The t-test is a hypothesis testing technique used to decide whether the estimated coefficient of a linear regression model is statistically significant or not. The t-value is used to measure the size of the difference between the estimated coefficient and the hypothesized value. When the t-value exceeds a critical value, such as 2.5, the estimated value of the explanatory variable is not significant at the 5%-level. It implies that the null hypothesis, which assumes that the explanatory variable's coefficient is zero, cannot be rejected.

The p-value is a measure of the probability of obtaining a more extreme value of the test statistic than the observed value if the null hypothesis is true. A small p-value implies that the null hypothesis should be rejected. When the p-value is less than 0.05, it means that the estimated value of the explanatory variable is significant at the 5%-level.

The confidence interval is a range of values that is expected to include the true value of the population parameter with a specified level of confidence. A 95% confidence interval means that the true value of the population parameter lies within the range 95% of the time. The 95% confidence interval does not contain zero implies that the estimated value of the explanatory variable is statistically significant at the 5%-level since it suggests that the population parameter is different from zero at the 5%-level. Conversely, if the 95% confidence interval contains zero, the estimated value of the explanatory variable is not statistically significant at the 5%-level since it means that the population parameter is not different from zero at the 5%-level. Therefore, it is essential to examine the t-statistic, p-value, and confidence interval while conducting hypothesis testing to make an informed decision.

To leran more about hypothesis testing, refer:-

https://brainly.com/question/17099835

#SPJ11