If you want to put a border around a rectangular room what steps would you use to find the length of border needed

Answer:

1/2

Step-by-step explanation:

It will be either heads of tails equally likely.

It’s still 1/2. Flipping a coin is an independent event. In other words, the outcome of the next flip is uninfluenced by what has happened previously. It’s as if it were the first time you ever flipped the coin. The probability is unaltered.

Answer:

jjjokiioololll.hgyuhhkopohjo

The value of the expression divide negative 3 and one-sixth ÷ negative 8 and two-fifths is 95 over 252. Option B

A fraction can be defined as the part of a whole item, number or element.

The several types of fractions are;

From the information given, we have that;

-3 1/ 6 ÷ - 8 2/ 5

Turn into improper fractions

-19/ 6 ÷ 42/ 5

Take the inverse of the divisor and multiply

- 19/ 6 × 5/ 42

95/252

Hence, the value is 95/252

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Answer:

0.75

Step-by-step explanation:

9514 1404 393

Answer:

  -108

Step-by-step explanation:

About the easiest way to do this for small values of n is to compute each of the terms using the given recurrence relation.

  \(a_1=4\\\\a_2=-3a_1=-3(4)=-12\\\\a_3=-3a_2=-3(-12)=36\\\\a_4=-3a_3=-3(36)=-108\\\\\boxed{a_4=-108}\)

_____

Alternate solution

You recognize that the recurrence relation describes a geometric sequence with a first term of 4 and a common ratio of -3. The n-th term of a geometric sequence is ...

  \(a_n=a_1\cdot r^{n-1} \qquad\text{for first term $a_1$ and common ratio $r$}\)

Then the 4th term will be ...

  \(a_4=4\cdot(-3)^{4-1}=4\cdot(-27)=-108\)

To solve the given problem using the simplex method, we need to follow the steps outlined. Let's go through each step:

(a) Reformulating the problem with non-negativity constraints:

We introduce non-negativity constraints by adding slack variables. The problem becomes:

Maximize: z = -11 + 2x2 + 13s1

subject to:

3x2 + x3 + s2 = 120

r1 - 12 - 4x3 + s3 = 80

-3 + 1x1 + 12x2 + 243x3 + s4 = 100

(b) Applying the simplex method step by step:

Create the initial tableau by representing the objective function and constraints in a tabular form.

Choose the pivot column, which is the column with the most negative coefficient in the objective function row.

Choose the pivot row, which is determined by the minimum non-negative ratios of the right-hand side values divided by the pivot column values.

Perform row operations to make the pivot element 1 and all other elements in the pivot column 0.

Repeat steps 2-4 until no negative coefficients exist in the objective function row.

(c) Once the simplex method is completed, we obtain the values of the decision variables (x1, x2, x3) in the optimal solution, as well as the objective function value (z).

Unfortunately, without the specific values and calculations, it is not possible to provide the exact values of the decision variables and the objective function in the optimal solution.

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Answer:

the exact answer is x = -∛2.

Step-by-step explanation:

The average value of a function over an interval [a, b] is given by:

Avg = (1 / (b - a)) * ∫[a to b] f(x) dx

In this case, the interval is [−2, 0], so a = -2 and b = 0.

Avg = (1 / (0 - (-2))) * ∫[-2 to 0] (9x^3) dx

= (1 / 2) * ∫[-2 to 0] (9x^3) dx

= (1 / 2) * [9/4 * x^4] | [-2 to 0]

= (1 / 2) * (9/4 * (0^4 - (-2)^4))

= (1 / 2) * (9/4 * (0 - 16))

= (1 / 2) * (9/4 * (-16))

= (1 / 2) * (-36)

= -18

The average value of f(x) = 9x^3 over the interval [-2, 0] is -18.

Now, we need to find the points in the interval where the function takes on this average value of -18.

Setting f(x) = -18, we have:

9x^3 = -18

Dividing both sides by 9:

x^3 = -2

Taking the cube root of both sides:

x = -∛2

Therefore, the point cc in the interval [-2, 0] where f(x) = 9x^3 takes on its average value of -18 is x = -∛2.

i hope i helped!

Binding constraints directly influence the optimal solution in a linear Programming problem, whereas constraints with positive slack are non-binding and do not directly impact the solution.

binding constraints and positive slack in the context of linear programming. In a linear programming problem, we aim to find the optimal solution for an objective function, given a set of constraints. The terms "binding constraints" and "positive slack" are related to these constraints.

1. Binding constraints: These are constraints that directly impact the optimal solution of the problem. In other words, they "bind" the feasible region (the area where all the constraints are satisfied) and affect the maximum or minimum value of the objective function. Binding constraints are active constraints, as they influence the final solution.

2. Positive slack: Slack is the difference between the left-hand side and right-hand side of a constraint when the constraint is satisfied. If this difference is positive, it means that there is some "extra" or "unused" resource in that constraint. Positive slack indicates that the constraint is non-binding, meaning it does not directly impact the optimal solution. It shows that there is some room for the constraint to be further tightened without affecting the final outcome.

In summary, binding constraints directly influence the optimal solution in a linear programming problem, whereas constraints with positive slack are non-binding and do not directly impact the solution. Knowing the difference between these terms can help you better understand and analyze linear programming problems.

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The probability that a randomly selected student in the class takes more than 2 minutes and less than 3 minutes, or more than 7 minutes but less than 8 minutes to solve an exam problem is 0.08.

To find the probability, we can analyze the given information. Let's denote the probability of taking at least x minutes but not more than y minutes as P(x ≤ time ≤ y).

We are interested in finding P(2 < time < 3) or P(7 < time < 8).

Using the given probabilities, we can calculate P(2 < time < 3) as follows:

P(2 < time < 3) = P(time ≥ 2) - P(time ≥ 3)

= P(2 ≤ time ≤ 4) - P(3 ≤ time ≤ 5)

From the information given, we know that P(2 ≤ time ≤ 4) = 0.25 and P(3 ≤ time ≤ 5) = 0.38.

Plugging these values into the equation, we get:

P(2 < time < 3) = 0.25 - 0.38 = -0.13

However, probabilities cannot be negative, so we know that the answer is not negative.

Thus, we can conclude that P(2 < time < 3) = 0.

Similarly, we can find P(7 < time < 8) using the given probabilities:

P(7 < time < 8) = P(6 ≤ time ≤ 8) - P(5 ≤ time ≤ 7)

From the information, we have P(6 ≤ time ≤ 8) = 0.17 and P(5 ≤ time ≤ 7) = 0.34.

Substituting these values, we get:

P(7 < time < 8) = 0.17 - 0.34 = -0.17

Again, probabilities cannot be negative, so P(7 < time < 8) = 0.

In conclusion, the probability that a randomly selected student takes more than 2 minutes and less than 3 minutes, or more than 7 minutes but less than 8 minutes to solve an exam problem is 0.08.

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Answer:

True

Explanation:

Answer:

720

Step-by-step explanation:

Out of 80 students the no. of students who sign up=48

So, out of 1200 students 48×1200÷80=720 students sign up.

Answer:

X>5273

Step-by-step explanation:

I did the math cuz I needed the answer and got it right so hope I could help.

The probability that , Xb exceeds Xa , by 3.0 or more if ub and ua, are equal is 0.2537.

The probability of an occurrence is a figure that represents how likely it is that the event will take place. In terms of percentage notation, it is stated as a number between 0 and 1, or between 0% and 100%. The higher the likelihood, the more probable it is that the event will take place.

Probability is a way to gauge how likely something is to happen. Several things are difficult to forecast with absolute confidence. With it, we can only make predictions about the likelihood of an event happening, or how likely it is.

n1 = n2 = 25,

hypothesis,

standard error for difference,

\(\sqrt{\frac{16^2}{25} +\frac{16^2}{25} }\)

=4.525

z =(3-0)/4.525

z=0.663

P(z ≥ 0.663) = 0.2537.

No, there is not strong evidence that \(\mu _B\) is greater than \(\mu _A\).

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Complete question;

A consumer electronics company is comparing the brightness of two different types of picture tubes for use in its television sets. Tube type A has mean brightness of 100 and standard deviation of 16, and tube type B has unknown mean brightness, but the standard deviation is assumed to be identical to that for type A. A random sample of n = 25 tubes of each type is selected, and X -X, is computed. If u, equals or exceeds u,, the manufacturer would like to adopt type B for use. The observed difference is X,X, - 3.0. a. What is the probability that , exceeds X, by 3.0 or more if ug and u, are equal? b. Is there strong evidence that ug is greater than u,?

Answer:

measurement square meter

Step-by-step explanation:

thats good answer

sana po makatulong po sa inyo

po....................

Answer:

x=15 y=24

Step-by-step explanation:

This is because the rule is x goes up 3 y goes up 4

(9,12)->(x,20)

it skips one, so instead of adding 3 we add six

x=15

(15,20)->(18,y)

you follow the rule and 4.

Y=24

Answer:

(3,-9)

Step-by-step explanation:

Xm = (-3+9)/2 = 6/2 = 3

Ym = (-3+(-15)/2 = (-3-15)/2 = -18/2 = -9

Answer:

\(1\frac{1}{9}\)

Step-by-step explanation:

Given the following question:

\(1\frac{2}{3} \times\frac{2}{3}\)

In order to multiply the two, we have to convert the mixed number into a improper fraction and then multiply the numerator by the numerator, the denominator by the denominator.

\(1\frac{2}{3} =3\times1=3+2=\frac{5}{3}\)
\(\frac{5}{3} \times\frac{2}{3}\)
\(5\times2=10\)
\(3\times3=9\)
\(=\frac{10}{9}\)

Convert the improper fraction into a mixed number:

\(\frac{10}{9}\)
\(\frac{10}{9} =10\div9=1\frac{1}{9}\)
\(=1\frac{1}{9}\)

Your answer is "1 1/9."

Hope this helps.

Answer:

  179.3 square units

Step-by-step explanation:

The area of the figure is the sum of the areas of the parts. That is, the area is the sum of the area of the rectangle, and the area of the semicircle.

__

The area of a circle with radius 5 is ...

  A = πr²

  A = π(5²) = 25π

The area of the semicircle is half that:

  semicircle area = (25π)/2 = 12.5π ≈  39.3 . . . . square units

The area of a rectangle with length L and width W is ...

  A = LW

The width of this rectangle is the diameter of the circle, twice the radius, or 10 units.

  A = (14)(10) = 140 . . . . square units

The sum of the areas of the parts is ...

  total area = semicircle area + rectangle area

  total area = 39.3 + 140 = 179.3 . . . . square units

Answer:

Multiply 2/5 by 4

Step-by-step explanation:

When you have a math operatation like this, what you need to do is to:

Hope this helps, have a good day

We would have a graph with the x axis labeled number of students and the y axis labeled amount of money raised and a line going from the point 0 comma 120 through the point 2 comma 100. Option A

We have to determine the nature of the graph that we have in the context of the question. In this case, we must recall that the function that we have would look something of the nature; y = 10x + 120 where y is the money raised and x is the number of students that attends the dance.

Here we can see that the nature of the equation just looks like the equation of the straight line graph that is given as; y = mx + c

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Answer:

1.

Step-by-step explanation:

1. 1.811/2=3.622 271/3=813

3.622*813=2,944.686

this is number one

2. 32x=729

divide both sides by 32

32x=729/32=

22.78125 approximate=22.8 or 23

Answer: y=3/2x+4

Step-by-step explanation: The equation for the line below is \(y=\frac{3}{2}x +4\)

This equation is correct because the formula is y=mx+b. m is the slope and you can see the slope is \(\frac{3}{2}\) and x is to represent that the number is the slope. The b, or +4 represents where the line crosses over the x-axis.

The equation is \(y=\frac{3}{2}x +4\)

Let me know if you have any other questions about this problem.

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Answer:$43

Step-by-step explanation:

65 -22 =43

Answer:

$2.81

Step-by-step explanation:

Answer:

The answer is B 5.4 units

Step-by-step explanation:

The approximate value of PQ in the right angle triangle is 5.4 units.

A right angle triangle has one of its angles as 90 degrees. Therefore, the sides can be found by trigonometric ratios.

Hence,

sin 50 = opposite / hypotenuse

sin 50 = PQ / 7

cross multiply

PQ = 7 sin 50°

PQ = 7 × 0.76604444311

PQ = 5.36231110183

PQ = 5.4 units

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Answer:

10 ft 2

Step-by-step explanation:

A=a+b2h=3+72·2=10

Answer:

The answer is (-4, -2)

Step-by-step explanation:

Answer:

(-4,-2)

Step-by-step explanation:

since it's left of the origin, x is negative

since it's below the x axis, y is negative as well

If you ever have trouble with problems like these try graphing it, it can help

Answer:

48 hours

Step-by-step explanation:

1 x 12 = 12, 12 inches in a foot

4 x 12 = 48

Function: y = 1/4x

The dependent variable is the amount of snowfall and the independent variable is the counting of hours.

pls mark brainliest!

<3

Answer:

23.8

Step-by-step explanation: