please help with these math questions just by saying "yes yes no no no" etc in the comments. brainliest for correct answer

Discount is 0.354838, Discount percentage is 35.4838 %.

According to the question

A shop item is marked down from r 6.20 to r 4.

A discount is an amount that is subtracted from the regular price of an item.

Based on the given conditions

= \(\frac{6.2-4}{6.2}\)

Solving 6.2 - 4, we get 2.2

= 2.2/6.2

Discount = 11/31 = 0.354838

Percentage discount is a discount that is given to a product or service that is given as an amount per hundred. For example, a percentage discount of 20% would mean that an item that originally cost $100 would now cost $80.

Discount percentage = \(\frac{11}{31}\) × 100

= 35.4838 %

Hence,

Discount is 0.354838, Discount percentage is 35.4838 %.

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Answer: 15/39

Step-by-step explanation:

To find a sine, you take the opposite side length and put it over the hypotenuse

Substitute values.

15/39

Answer:

less than

Step-by-step explanation:

pls mark brainliest

hope this helps

Answer:

A- 200+25x

B- 200+25×4=300

Continued for question B: The input of 4 into "x" indicates how many cans of paint you have bought

Step-by-step explanation:

The numerical length of the line segment FG is 10 units.

An equation is an expression that shows the relationship between two or more numbers and variables. An independent variable is a variable that does not depend on other variables while a dependent variable is a variable that depends on other variables.

Point G is on FH, hence:

FH = FG + GH

Given that GH = 8, FH = 3x + 3, FG = 2x, hence:

3x + 3 = (2x) + 8

x = 5

FG = 2x = 2(5) = 10

The numerical length of the line segment FG is 10 units.

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Answer:

x=2

Step-by-step explanation:

5x=3x+4

5x-3x=4

2x=4

x=4/2

x=2

All the best for ur exams .........Mine are going on too btw.......

Random variables that can take on any value in some interval are called continuous random variables.

A continuous random variable is defined over a continuous range of values and can take on any value within that range. This is in contrast to discrete random variables, which can only take on a finite or countably infinite set of distinct values.

The probability distribution of a continuous random variable is described by a probability density function (PDF), which specifies the likelihood of the random variable taking on different values. The area under the PDF curve within a given interval represents the probability of the random variable falling within that interval.

Examples of continuous random variables include the height of a person, the time it takes for an event to occur, or the temperature at a specific location.

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The required exact surface area of the cylinder is 2\(\pi\)r(r+h).

To calculate the surface area of the cylinder, the required measurement of the radius (r) of the base of the given cylinder and height (h) of the cylinder.

The  formula to find the lateral surface area of a given cylinder is 2\(\pi\)rh and the formula to find the surface area of  a given cylinder is 2\(\pi\)r(r+h).

Let the radius of the base of the cylinder be f and height of the cylinder be g then the lateral surface of cylinder is 2\(\pi\)fg, the surface area of  a given cylinder is 2\(\pi\)f(f+g).

Hence, the required exact surface area of the cylinder is 2\(\pi\)r(r+h).

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For a sample of hospitals related to shorten the average length of stay (LOS) of their patients,

A) The 90% confidence interval to estimate the population mean LOS are 3.3362 and 4.2638.

B) The Interpreted interval in terms of this application is equals to (3.3362,4.2638).

C) The meaning of phrase "90% confidence interval" is number that fall within the upper as well as lower boundaries of distribution.

We have a health insurers and federal government ordered to hospitals regarding to short or decrease the average length of stay of their patients.

population Mean of LOS = 4.5 days

Sample size of hospitals, n = 20

Sample mean, \( \bar x\) = 3.8days

Standard deviations, \( \sigma\)

= 1.2 days

A) The population estimate mean LOS for the state's hospitals at 90% confidence interval,

The degrees of freedom, df = 20 -1

= 19

90% confidence interval then the confidence interval is 0.90. So, 1 −∝

= 0.90

=> ∝ = 0.1

=> ∝/2= 0.05

The critical t value for confidence 0.05 and degree of freedom 19 is equals 1.72.

Using the confidence interval formula,

\( \bar x ± t_{(0.05, 19)} \frac{\sigma}{\sqrt{n}}\)

\( 3.8 ± 1.729\frac{1.2}{\sqrt{20}}\)

= (3.3362,4.2638)

So, required values are 3.3362 and 4.2638.

(b) In terms of this application, the interval, 90 percent confident that the populations mean length of remain (LOS) for the state’s hospitals(μ) lies among 3.3362 and 4.2638.

c) The term 90% confidence interval expresses a number that will fall within the upper as well as lower boundaries of a probability distribution.

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Answer:

the answer is 4/6 or 6/9

Answer:

(-12, -2)

Step-by-step explanation:

Rearrange the equation --> x^2 + 14x + 24 = 0

Split 14x into 12x + 2x --> x^2 + 12x + 2x + 24 = 0

Group --> x(x + 12) + 2(x + 12) = 0, (x + 12)(x + 2) = 0

Find roots:

x + 12 = 0, x = -12

x + 2 = 0, x = -2

The solution of the given expression \(\rm x^{2} +14x = -24\\\) by completing the square method is 12 and  -2.

The given expression is

\(\rm x^{2} +14x = -24\\\)

In completing the square, we take half of the coefficient of the middle term and then square it. Then we add it to both sides of the equation

Here coefficient of middle term x is +14.

So, 14/2 = 7

square of 7 is 49

\(\rm x^{2} +14x +49= -24+49\\\rm (x+7) (x+7)=25\\\rm (x+7)^{2} =5^{2} \\\rm x+7 =5\)

x+7 = 5 and x+7 = -5

Solve for x by subtracting 7 on both sides

x = -2  and x= -12

Solution set is {-12, -2}

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Answer

First Question

Options A and B are correct.

The correct answers that satisfy the inequality given include 1600 and 2000.

Second Question

d = 948.6 m

Explanation

We are given that

√x ≥ 40

We are then asked to pick the options that satisfy the given expressio,

To do this, we need to first square both sides

√x ≥ 40

x ≥ 1600

So, for the options, we will pick the answers that are greater than or equal to 1600

The correct answers include 1600 and 2000.

All the other options are not equal to or greater than 1600.

Second Question

We are given that the expression that gives the relationship between the distance the object falls (d) and the time taken (t) is

√d = (t) . (2.8)

√d = 2.8t

We are then asked to solve the distance a screw that falls for 11 seconds falls

√d = 2.8t

t = 11 seconds

√d = 2.8t

√d = 2.8 (11)

√d = 30.8

Square both sides

d = 948.6 m

Hope this Helps!!!

There will be $21,935.05 in retirement account on the day of retirement.

To calculate the amount of money you will have in your retirement account on the day you retire:

The annual contribution to your retirement account is $4,500.

The interest rate is 9.5% per year.

You plan to retire in 43 years.

To calculate the amount of money in your retirement account, we can use the following formula:

retirement fund = annual contribution * (1 + interest rate)**number of years

Plugging in the values for the annual contribution, interest rate, and number of years, we get:

retirement fund = 4500 * (1 + 0.095)**43 = 21935.05

Therefore, you will have $21,935.05 in your retirement account on the day you retire.

Correct Question:

You are trying to decide how much to save for retirement. Assume you plan to save $4,500 per year with the first investment made one year from now. You think you can earn 9.5​% per year on your investments and you plan to retire in 43 ​years, immediately after making your last $4,500 investment. How much will you have in your retirement account on the day you​ retire?

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Answer:

no

Step-by-step explanation:

The minimum number of hours you will have cruise control on is 1.83 hour(s) and the maximum is 2.83 hour(s).

To find the minimum and maximum numbers of hours you will have cruise control on, you need to calculate the distance you will travel with cruise control on and divide it by your speed.

The minimum distance you will travel with cruise control on is

140 miles - 30 miles = 110 miles.

The maximum distance you will travel with cruise control on is

140 miles + 30 miles = 170 miles.

To convert these distances into hours, you will divide them by your speed of 60 miles per hour.

Minimum hours: 110 miles / 60 mph = 1.83 hours

Maximum hours: 170 miles / 60 mph = 2.83 hours

Therefore, the minimum number of hours you will have cruise control on is 1.83 hour(s) and the maximum is 2.83 hour(s).

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Answer:

3rd option

Step-by-step explanation:

Given z is inversely proportional to (y - 2)² then the equation relating them is

z = \(\frac{k}{(y-2)^2}\) ← k is the constant of proportion

To find k use the condition when y = 5, z = 9 , then

9 = \(\frac{k}{(5-2)^2}\) = \(\frac{k}{3^2}\) = \(\frac{k}{9}\) ( multiply both sides by 9 )

81 = k

z = \(\frac{81}{(y-2)^2}\) ← equation of proportion

Responder:

a) 1

b) 12

c) 3

d) -1 y 3

Explicación paso a paso:

Dadas las siguientes ecuaciones;

a) x²-x =0

x² = 0+x

x² = x

x = 1

b) -x²+12x = 0

-x² = -12x

x² = 12x

x = 12

c) 3x² - 9x = 0

Suma 9x a ambos lados

3x²-9x+9x = 0+9x

3x² = 9x

3x = 9

x = 9/3

x = 3

d) x²-2x-3 = 0

x²-3x+x-3 = 0

x(x-3)+1(x-3) = 0

(x+1)(x-3) = 0

x+1 = 0 y x-3 = 0

x = -1 y 3

Answer:

8 feet

Step-by-step explanation:

Answer:

a=8 ft

Step-by-step explanation:

Answer: r=1

Step-by-step explanation: r" is the correlation coefficient. It is always between -1 and 1, with -1 meaning the points are on a perfect straight line with negative slope, and r = 1 meaning the points are on a perfect straight line with positive slope.

Answer:

The solution of the given inequality  x>9

Step-by-step explanation:

Explanation:-

Given that the inequality      31 < 3 x + 4

                      Subtracting '4' on both sides, we get

                                    31 - 4 < 3 x + 4 -4

                        ⇒         2 7  <  3 x

                      Dividing '3' on both sides, we get

                        ⇒         9 < x

                                   x > 9

9514 1404 393

Answer:

  14.1 years

Step-by-step explanation:

Use the compound interest formula and solve for t. Logarithms are involved.

  A = P(1 +r/n)^(nt)

amount when P is invested for t years at annual rate r compounded n times per year.

Using the given values, we have ...

  13060 = 8800(1 +0.028/365)^(365t)

  13060/8800 = (1 +0.028/365)^(365t) . . . . divide by P=8800

Now we take logarithms to make this a linear equation.

  log(13060/8800) = (365t)log(1 +0.028/365)

Dividing by the coefficient of t gives us ...

  t = log(13060/8800)/(365·log(1 +0.028/365)) ≈ 0.171461/0.0121598

  t ≈ 14.1

It would take about 14.1 years for the value to reach $13,060.

The value of x if both lines intersect is 2/3

The equation in mathematics is the relationship between the variables and the number and establishes the relationship between the two or more variables.

Given the equation of a line that passed through the points (0, 4) and (1, 1) expressed as h(x) = -3x +4

The equation of the second line g(x) passing through the points (-2, 2) and (0, 2) is g(x) = 2

If the lines intersect, then h(x) = g(x)

Substituting the functions to get the value of "x"

-3x + 4 = 2

Subtract 4 from both sides

-3x + 4 - 4 = 2 - 4

-3x = - 2

Divide both sides by - 3

x = 2 / 3

Hence the value of x if both lines intersect is 2/3

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Answer:

2/3

Step-by-step explanation:

edge23

The trigonometric function has the following exact value: csc θ = √170 / 7

Herein we must determine the exact value of a trigonometric function, that is, the cosecant function, based on the coordinates of a vector generated by a point and the origin of the Cartesian plane. The trigonometric function is defined below:

csc θ = 1 / sin θ = 1 / [y / √(x² + y²)] = √(x² + y²) / y

Where:

If we know that x = - 11 and y = 7, then the exact value of the cosecant function is:

csc θ = √[(- 11)² + 7²] / 7

csc θ = √170 / 7

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Answer:2.4 isn’t occupied, whilst 13.3 is full

Step-by-step explanation: answerrr

The circulation of the vector field F is 0.

To find the circulation of the vector field F = 3yi + 7zj + 2xk around the given triangle using Stokes' theorem, we need to evaluate the surface integral of the curl of F over the surface bounded by the triangle.

The curl of a vector field F = P i + Q j + R k is given by the determinant:

curl F = (∂R/∂y - ∂Q/∂z) i + (∂P/∂z - ∂R/∂x) j + (∂Q/∂x - ∂P/∂y) k

In this case, we have F = 3yi + 7zj + 2xk, so we compute:

∂R/∂y = 0, ∂Q/∂z = 0, ∂P/∂z = 0, ∂R/∂x = 0, ∂P/∂y = 3, ∂Q/∂x = 0

Therefore, the curl of F is:

curl F = 3j

The triangle is formed by the three given points: (6, 0, 0), (6, 0, 4), and (6, 2, 4). We need to find the surface bounded by this triangle.

To apply Stokes' theorem, we need to find the surface area vector and its magnitude.

The surface area vector is given by the cross product of two tangent vectors to the triangle, and its magnitude is equal to the area of the triangle.

The tangent vectors can be obtained by subtracting the position vectors of the points. Let's call the points A, B, and C, where A = (6, 0, 0), B = (6, 0, 4), and C = (6, 2, 4).

Tangent vector AB = B - A = (6, 0, 4) - (6, 0, 0) = (0, 0, 4)

Tangent vector AC = C - A = (6, 2, 4) - (6, 0, 0) = (0, 2, 4)

Now we can calculate the cross product:

Surface area vector = AB x AC = (0, 0, 4) x (0, 2, 4) = (-8, 0, 0)

The magnitude of the surface area vector is |Surface area vector| = \(\sqrt((-8)^2 + 0^2 + 0^2) = 8.\)

Stokes' theorem states that the circulation of F around the closed curve C is equal to the surface integral of curl F over the surface bounded by C.

In this case, the curve is the triangle, and the surface is the one we determined in Step 3.

The circulation is given by:

Circulation = ∬S (curl F) · dS

Substituting curl F = 3j and dS = Surface area vector = (-8, 0, 0), we have:

Circulation = ∫∫S (0, 3, 0) · (-8, 0, 0) dA

           = ∫∫S 0 dA

           = 0

Therefore, the circulation of the vector field F around the given triangle is 0.

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Answer:I think $1064

Step-by-step explanation:

First you multiply 1/5 by 420 and then add, so 1/5 x 420 = 84 & 420 + 84 = 504. Then you multiply 1/3 by 420 and also add, so 1/3 x 420 = 140 & 420 + 140 = 560. After you add both totals to get your final answer, so 504 + 560 = 1064. Her income each month is $1064.

The unit rate for each shirt if 24 shirts cost $259.36 as required to be determined is; $10.81.

It follows from the task content that the unit rate is to be determined if 24 shirts cost $259.36.

On this note, it follows that; the unit rate is given by the quotient;

Unit rate = Total cost / No. of units

Unit rate = 259.36 / 24

Unit rate = 10.80667.

Ultimately, the unit rate of the shirts as required is; $10.81.

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Answer:

i am jisoo i am okey

Step-by-step explanation:

jinnie