A box of 15 markers cost is $2.40 how much will a box of 40 marker’s cost

Answer:

You can spend 4 days in Los Angeles and 3 days in San Francisco.

Step-by-step explanation:

From the information given, you can write the following equations:

x+y=7 (1)

275x+400y=2,300 (2), where:

x is the number of days to visit Los Angeles

y is the number of days to visit San Francisco

First, you can solve for x in (1):

x=7-y (3)

Now, you can replace (3) in (2):

275(7-y)+400y=2,300

1,925-275y+400y=2,300

125y=2,300-1,925

125y=375

y=375/125

y=3

Finally, you can replace the value of y in (3) to find x:

x=7-3

y=4

According to this, the answer is that you can spend 4 days in Los Angeles and 3 days in San Francisco.

Answer:

39

Step-by-step explanation:

The point lies on the IV Quadrant

If th epoint is reflected in the y-axis, the vertical line, it will fall to the third quadrant.

So the answer is Choice A.

Answer:

WHAT NEEDS TO BE ANSWERED?????

Step-by-step explanation:

I CAN MAYBE HELP!!!

Answer:

Which DId you forgot to link it?

Step-by-step explanation:

Answer:

Yes, it is possible for a dataset to have more than one mode.

Step-by-step explanation:

In statistics, a mode refers to the value or values that occur most frequently in a dataset. If there are multiple values that have the same highest frequency and occur more frequently than any other value in the dataset, then the dataset is said to have multiple modes.

There are different types of distributions that can exhibit multiple modes. Here are a few examples:

Bimodal Distribution: A bimodal distribution has two distinct modes, meaning it has two peaks or high-frequency regions. This indicates that there are two different groups or subpopulations within the dataset, each with its own characteristic values. For example, if you have a dataset of heights that includes both adults and children, you may observe two modes corresponding to the adult and child heights.

Multimodal Distribution: A multimodal distribution has more than two modes, meaning it has multiple peaks or high-frequency regions. This suggests the presence of multiple subgroups or distinct characteristics within the dataset. For instance, if you have a dataset of exam scores for a class where some students performed well, some performed moderately, and some performed poorly, you might observe three modes corresponding to these groups.

No Mode: It is also possible for a dataset to have no mode, which occurs when no value appears more frequently than others. This can happen in datasets with uniform or random distributions, where all values have equal frequency.

It's important to note that not all datasets will have a mode or multiple modes. Some datasets may have a single mode where one value occurs with the highest frequency, while others may have no discernible mode if the values are evenly distributed or there is no repetitive pattern in the data.In summary, a dataset can have one mode, multiple modes, or no mode depending on the frequency distribution of its values. The presence of multiple modes indicates the existence of distinct groups or subpopulations within the data.

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The value of the expression according to the order of operations is -11. Thus option D is correct.

According to the statement

We have to find that the value of the given expression.

So, For this purpose, we know that the

The order of operations is a rule that tells the correct sequence of steps for evaluating a math expression.

From the given information:

The expression are :

(-2)-3-6

Now solve it with the order then

(-2)-3-6 = (-2)-3-6

(-2)-3-6 = -2-3-6

Now add the first two terms

then

(-2)-3-6 = -5-6

Now, Add next two terms

Then

(-2)-3-6 = -11.

The value becomes -11.

So, The value of the expression according to the order of operations is -11. Thus option D is correct.

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Products that can be found by matrix multiplication are:

OAB

OBA

OCD

ODC

ODE

OEF

Note that DCB cannot be computed because the dimensions of C and D are not compatible for matrix multiplication. The product DONE is not a valid product.

Answer:

\(\boxed{\underline{\bf v=16}}\)

Step-by-step explanation:

\(\tt 3.8\left(v-12.3\right)-6.34=7.72\)

Simplify both sides of the equation:-

\(\tt 3.8(v-12.3)-6.34=7.72\)

Distribute:-

\(\tt (3.8)(v)+(3.8)(-12.3)+-6.34=7.72\)

\(\tt 3.8v+-46.74+-6.34=7.72\)

Combine Like Terms:-

\(\tt (3.8v)+(-46.74+-6.34)=7.72\)

\(\tt 3.8v+-53.08=7.72\)

\(\tt 3.8v-53.08=7.72\)

Add 53.08 to both sides:-

\(\tt 3.8v-53.08+53.08=7.72+53.08\)

\(\tt 3.8v=60.8\)

Divide both sides by 3.8:-

\(\tt \cfrac{3.8v}{3.8}=\cfrac{60.8}{3.8}\)

\(\tt v=16\)

______________________

Hope this helps!

Have a great day!

Answer:

First we must distribute the 2.6 to everything inside the ()

The new equation would then be 14.3p-32.24 = 127.92

Then you would add a -32.24 to each side of the equal sign, so that the 32.34 would become a zero pair on the right side of the equal sign and cancel.

The new equation would then be 14.3p = 160.16

Then you divide each side of the = by 14.3, that way the p becomes isolated. 14.3p/14.3 = 160.16/14.3

Then you're left with p=11.2

Answer:

Salary A/c. Dr.

To Cash A/c.

(Being salary paid to Gopal)

Step-by-step explanation:

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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The total cost of power generation for a specific load demand can be calculated by optimally allocating the load demand to each unit based on their power output limits. The allocation is done in a way that minimizes the overall cost while meeting the load demand.

In the given power system depicted in Figure 1, there are three units that are always running. Each unit has specific characteristics regarding their minimum power output (Pmin), maximum power output (Pmax), and incremental cost (Ci). Let's discuss the characteristics of each unit and calculate the total cost of power generation for a given load demand.

Unit 1:

Pmin = 200 MW

Pmax = 500 MW

Ci = $50/MWh

Unit 2:

Pmin = 150 MW

Pmax = 400 MW

Ci = $40/MWh

Unit 3:

Pmin = 100 MW

Pmax = 300 MW

Ci = $30/MWh

To calculate the total cost of power generation for a given load demand, we need to determine the optimal power output for each unit. We start by considering the units with the lowest incremental cost first.

Suppose the load demand is D MW. We allocate the load demand to the units as follows:

Step 1: Check if Unit 1 can meet the load demand within its power range. If yes, allocate the load demand to Unit 1 and calculate the cost:

Cost1 = Ci * P1, where P1 is the power output of Unit 1.

Step 2: If there is still remaining load demand, allocate it to Unit 2:

Cost2 = Ci * P2, where P2 is the power output of Unit 2.

Step 3: If there is still remaining load demand, allocate it to Unit 3:

Cost3 = Ci * P3, where P3 is the power output of Unit 3.

Finally, the total cost of power generation, Cost_total, is the sum of Cost1, Cost2, and Cost3:

Cost_total = Cost1 + Cost2 + Cost3

To find the optimal power output for each unit, we consider the load demand and compare it to the minimum and maximum power output limits for each unit. The power allocation is based on meeting the load demand while minimizing the overall cost of power generation.

In summary, given the characteristics of the three units in the power system (Pmin, Pmax, and Ci), the total cost of power generation for a specific load demand can be calculated by optimally allocating the load demand to each unit based on their power output limits. The allocation is done in a way that minimizes the overall cost while meeting the load demand.

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The graphs cross at x=-1 and x=1. Those are the solutions to to the equation

We know that, If two functions are equal then there solution is the intersection point of the curves.

When we determine the graph the intersection points are (0,2) and (1,1.25).

The values of x of the intersection points are the solutions of the system

Using a graphing tool, there are two intersection points and therefore the solutions are x = -1 and x [ 1.

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Step-by-step explanation:

the answer is 4 m + 5 and my workings and the image above

Answer:

\(4m + 5\)

Step-by-step explanation:

\((16 {m}^{2} +40m+25)÷(4m+5)\)

\(4m + 5\)

Answer:

24

Step-by-step explanation:

you would multiply 12 time 2

Answer:

Given f(-2)

= -5 -7(-2)

= -5+14

= 9

Thus f(-2) of f(x)= 5-7x is 9

the cake should be cut into 12pieces ! if he only give pieces of cake to his brothers and sisters , then that boy will be sad !

Answer:

3/31

Step-by-step explanation:

31 - 28 = 3 left handed students

31 total students

probability that a student chosen at random will be left-handed is 3/31

(a) The limit does not exist as approaching (0,0) along different paths yields different limits. (b) The limit of the function is indeterminate and further analysis is needed to determine its value.

(a) To show that the limit does not exist, we can approach (0,0) along different paths and show that we obtain different limits. Let's consider approaching along the path y=mx.

lim (x,y)→(0,0) \((x^6 + 3x^3y - 2y^2) / (x^6 - 2y^2)\)

Substituting y=mx:

lim x→0 \((x^6 + 3x^4m - 2x^4m^2) / (x^6 - 2x^4m^2)\)

Taking the limit as x approaches 0, we have:

lim x→0\((x^6 + 3x^4m - 2x^4m^2) / (x^6 - 2x^4m^2)\)

= (0 + 0 - 0) / (0 - 0)

= 0/0

The limit is indeterminate, indicating that it does not exist.

(b) To find the limit of the function, let's evaluate it directly:

lim (x,y)→(0,0) \((x^2 + y^2) / (x^4 - y^4)\)

Substituting x=0 and y=0, we have:

lim (x,y)→(0,0) \((0^2 + 0^2) / (0^4 - 0^4) = 0/0\)

The limit is indeterminate, and further analysis is required to determine its value.

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The solution of the initial value problem in explicit form is:

-1/2 cos(2x) + 1/9 sin(9y) = -1/2 cos(4/7) + 1/9 sin(45).

To solve the given initial value problem, we can integrate both sides of the equation:

∫sin(2x) dx + ∫cos(9y) dy = 0.

Integrating each term separately:

-1/2 cos(2x) + ∫cos(9y) dy = C,

where C is the constant of integration.

Now, we need to evaluate the integral of cos(9y) with respect to y:

-1/2 cos(2x) + 1/9 sin(9y) = C.

To find the value of the constant C, we can substitute the initial condition y(2/7) = 5 into the equation:

-1/2 cos(2(2/7)) + 1/9 sin(9(5)) = C.

Simplifying:

-1/2 cos(4/7) + 1/9 sin(45) = C.

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An interest rate of 2.5 % is required to obtained a current capital of $ 143,000 after a period of 16 years.

In this problem we find that Jayden deposits an amount of money for a period of 16 years and such account is under composite interest, that is, that the account increases its capital continously in time. Compound interest model is shown:

C' = C · (1 + r / 100)ˣ

Where:

If we know that C = 97,000, C' = 143,000 and x = 16, then the interest rate is:

143,000 = 97,000 · (1 + r / 100)¹⁶

143 / 97 = (1 + r / 100)¹⁶

1.025 = 1 + r / 100

0.025 = r / 100

r = 2.5

The needed interest rate needed for a capital of $ 143,000 after a period of 16 years is equal to 2.5 %.

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Answer:

Hi there :)

Step-by-step explanation:

From what I can see, 9. is a right triangle because of the right angle, 10. is an acute triangle, and 11. is another right triangle. Please let me know if you need further explanation.

Answer:

An equilateral triangle has all side lengths the same, and all angles are 60 degrees. Using this we can split the triangle along its altitude to get two right triangles with a hypotenuse of length 10 and a base of 1/2 of the original length, so 5. Now we can either use the Pythagorean theorem (a^2+b^2=c^2) or the fact that it is a 30 60 90 triangle (angles measure at 30 60 and 90 degrees) Pythagorean theorem is probably easier.

It stated that the squares of the two legs of a right triangle add to the square of the hypotenuse. So a(the altitude)^2+5(the base)^2=10(the hypotenuse)^2

A^2+5^2=10^2

A^2+25=100

A^2=75

A=sqrt(75)

A=5*sqrt(3)

Final answer:

The altitude of an equilateral triangle with side length 10 is 5sqrt(3), or about 8.66

Step-by-step explanation:

Please give the brainliest, really appreciated.

$5 for 1 shirt

y = cost

x = number be shirts

10y = 2x

5y = x

with my calculation i think its 5

Answer:

There are 15 20p coins

Step-by-step explanation:

That gives you full marks on math watch

The function that takes three decimal numbers as inputs and finds the sum of those inputs and returns the sum has been given below

What is programming?

Program is the set of instructions given to the computer so that the computer can execute those instructions. The act of writing program is called programming.

The program has been shown below

#include<stdio.h>

using namespace std;

int main()

{

double n1, n2, n3;

double s;

printf("Enter first numbers");

scanf(%lf, &n1);

printf("Enter second numbers");

scanf(%lf, &n2);

printf("Enter third numbers");

scanf(%lf, &n3);

s = n1 + n2 + n3;

printf("Sum = %f", s);

return 0;

}

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Therefore,  the probability that  basketball  will weigh between 20.5 and 23.5 is 0.866

Probability is the concept that describes the likelihood of an event occurring. In real life, we frequently have to make predictions about how things will turn out. We may be aware of the result of an occurrence or not. When this is the case, we refer to the likelihood that the event will occur or not.

Here,

X υ N (22,1)

Probability that  basketball  will weigh between 20.5 and 23.5

is:

=> P(20.5 < x < 23.5)= P[ 20.5-22/1 < z < 23.5-22/ 1   ]

=>   P(20.5 < x < 23.5) = P(-1.5 < z < 1.5)

=>  P(20.5 < x < 23.5) = 0.866

Therefore,  the probability that  basketball  will weigh between 20.5 and 23.5 is 0.866

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Answer:

undefined.

explanation:

→ \((5+5-5-5) / ( 2+2+2-6)\)        

                           [ things inside the brackets are necessary to work out first ]

→ \((10-10) / (6 - 6 )\)

→ \(\frac{0}{0}\)

→ undefined.

                              [ as \(\frac{x}{0}\) is undefined ]

\( \boxed{ \sf Answers \: is \: 0}\)

Hope Helps! :)