WHICH MATHS EXPERT WANT TO HELP ME ANSWER THIS QUESTION⁉️
I NEED THE ANSWERS ASAP FOR BOTH QUESTION A & B‼️‼️‼️‼️
I’LL AWARD YOU AS BRAINLIEST I PROMISE‼️

Answer:

12

Step-by-step explanation:

Change both fractions into decimals

3/4 = 0.75

1/16 = 0.0625

Now divide

0.75/0.0625 = 12

Answer: 92  ≥  16.50t + 12.75s

16.50t + 12.75s ≤ 92

Step-by-step explanation:

The inequality that describes the relationship between t and s that is necessary for Sara to cover her costs is 16.50t + 12.75s ≥ 92.

A statement of an order relationship-greater than, greater than or equal to, less than, less than or equal to- between two numbers or algebraic equations.

Now it is given that,

Cost of towels = $16.50

Cost of painted wall signs = $12.75

Sara's goal is to make at least $92 to cover the cost of making her crafts for the fair,

∴ Goal to cover the cost ≥ 90

Now, If t represents the number of towels sold and s represents the number of signs sold.

Therefore,

Total Cost of towels = 16.50t

Total Cost of painted wall signs = 12.75s

Since, Goal to cover the cost ≥ 90

⇒Total cost =  16.50t + 12.75s

⇒ 16.50t + 12.75s ≥ 90

which is the required inequaltiy.

Thus, the inequality that describes the relationship between t and s that is necessary for Sara to cover her costs is 16.50t + 12.75s ≥ 92.

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Answer:

A. Vertical angles. B. Alternate interior angles.  C. If two lines are cut by a transversal and the alternate interior angles are equal, then the two lines are parallel.

The probability that the average NOX + NMOG level of these cars is above 91 mg/mi is 0.0000.

To find the probability that the average NOX + NMOG level of the 36 cars is above 91 mg/mi, we need to calculate the z-score and then find the corresponding probability using the standard normal distribution.

First, we calculate the standard error of the mean (SEM), which is the standard deviation divided by the square root of the sample size:

SEM = 5 / √36 = 5 / 6 = 0.8333

Next, we calculate the z-score using the formula:

z = (x - μ) / SEM

Where x is the desired value (91 mg/mi), μ is the mean (86 mg/mi), and SEM is the standard error of the mean.

z = (91 - 86) / 0.8333 = 6 / 0.8333 = 7.2003

Now, we can use a standard normal distribution table or calculator to find the probability corresponding to this z-score. The probability of the average NOX + NMOG level being above 91 mg/mi is the area under the curve to the right of the z-score.

Looking up the z-score in a standard normal distribution table, we find that the probability is approximately 0.0000.

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Answer:

i think 5x^2-5

Step-by-step explanation:

(3X)(2X-2)

5X^2-5

Answer:

im pretty sure its 5×^2-2

Step-by-step explanation:

im not sure but don't take my word for it

Answer:

  A. ху

Step-by-step explanation:

Assuming your x'y' is xy with the variables to the first power, that is the term with the smallest x- and y-exponents. It is a factor of all the other terms so is the greatest common factor of all the terms.

(a) The determinant of matrix A is [tex]$\det(A) = 60$[/tex].

(b) The value of [tex]$3a + 36 + 3c + hi + g + d + 6a + 6b + 6c + e + 6f$[/tex] is determined by the equation. Simplifying and solving the expression yields the desired value.

(a) To calculate the determinant of matrix A, we can use various methods such as cofactor expansion or row reduction. By using the cofactor expansion method along the first row, we have:

[tex]det(A) = 2 * det([2 -3; 0 -1]) - 1 * det([121 -3; 0 -1]) + 0 * det([121 2; 0 -1])= 2 * (2 * (-1) - (-3) * 0) - 1 * (121 * (-1) - (-3) * 0) + 0 * (121 * (-1) - 2 * 0)= 2 * 2 - 1 * (-121) + 0= 4 + 121= 125[/tex]

(b) We are given the determinant of matrix G as 17, which can be represented as [tex]|G| = |a b c; d e f; g h i| = 17[/tex]. By comparing the elements, we have [tex]3a + 36 + 3c + hi + g + d + 6a + 6b + 6c + e + 6f = 17[/tex]. We can simplify and solve for the given value by substituting the given values and performing the necessary calculations.

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The given expression is:[tex]$$\frac{-1}{2(-12x + 30)}$$[/tex]

We know that [tex]$$\frac{a}{b}$$[/tex]is equivalent to [tex]$$a \div b$$[/tex]which means division of a by b. Thus, the given expression is equivalent to$$-\frac{1}{2} \div (-12x + 30)$$Similarly,

multiplication by the reciprocal of the denominator yields the following equivalent expressions:[tex]$$-\frac{1}{2} \div (-12x + 30) = -\frac{1}{2} \c[/tex]dot [tex]\frac{1}{-12x + 30}$$$$=-\frac{1}{2(-12x + 30)}$$[/tex]Lastly, $$\frac{1}{a} \cdot b = \frac{b}{a}$$[tex]$$\frac{1}{a} \cdot b = \frac{b}{a}$$[/tex]

Using this property we can transform the given expression to:[tex]$$\frac{-1}{2(-12x + 30)} = \frac{1}{2(12x - 30)}$$$$=\frac{1}{24x - 60}$$[/tex]

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Answer:

x =1

Step-by-step explanation:

[tex]5(3x-2) = 7 - 2x\\\\Expand\\\\15x-10=7-2x\\\\\mathrm{Add\:}10\mathrm{\:to\:both\:sides}\\\\15x-10+10=7-2x+10\\\\Simplify\\\\15x=-2x+17\\\\\mathrm{Add\:}2x\mathrm{\:to\:both\:sides}\\\\15x+2x=-2x+17+2x\\\\Simplfy\\\\17x=17\\\\\mathrm{Divide\:both\:sides\:by\:}17\\\\\frac{17x}{17}=\frac{17}{17}\\\\Simplify\\\\x=1[/tex]

Answer:

x = 6

Step-by-step explanation:

Answer:

x =6

Step-by-step explanation:

[tex]3x-8(2x+3)= -6(2x+5)\\\\\mathrm{Expand}\:-8\left(2x+3\right):\quad -16x-24\\3x-16x-24=-6\left(2x+5\right)\\\\\mathrm{Add\:similar\:elements:}\:3x-16x=-13x\\-13x-24=-6\left(2x+5\right)\\\\\mathrm{Expand\:}-6\left(2x+5\right):\quad -12x-30\\-13x-24=-12x-30\\\\\mathrm{Add\:}24\mathrm{\:to\:both\:sides}\\-13x-24+24=-12x-30+24\\\\Simplify\\-13x=-12x-6\\\\\mathrm{Add\:}12x\mathrm{\:to\:both\:sides}\\-13x+12x=-12x-6+12x\\\\Simplify\\-x=-6\\\\\mathrm{Divide\:both\:sides\:by\:}-1\\[/tex]

[tex]\frac{-x}{-1}=\frac{-6}{-1}\\\\Simplify\\\\x =6[/tex]

Answer:

1.4 meters

Step-by-step explanation:

A building is 52 meters tall. The building next to it is 50.36 meters tall. The difference between the heights of the buildings is 2.36 meters.

The difference is defined as the maximum value minus the minimum value.

A building is 52 meters tall. The building next to it is 50.36 meters tall.

The tallest building = 52

The next building = 50.36

The difference

= 52 - 50.36

= 2.36

Therefore, the difference between the heights of the buildings is 2.36 meters.

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Answer:

−5m/5 does not equal m.

Step-by-step explanation:

Answer:

You would run 12 laps.

Step-by-step explanation:

4 laps = mile because...

4x[tex]\frac{1}{4}[/tex]=1

If 4 laps are one mile, multiply 3 times 4 because you want a 3-mile workout...

3x4=12.

Hope this helps you out!! Have an amazing day :)

12 laps would have to run for a 3-mile workout.

Comparing quantities is the qualitative relation between two quantities which reflects the relative size of both the quantities

Now it is given that,

Each lap around a track is 1/4 mile

Therefore,number of laps in 1 mile = 4 laps

Now to run for a 3 mile work out multiply each mile with a lap to get the required workout.

Therefore,

3-mile workout = number of laps in 1 mile*number of mile workout

⇒ 3-mile workout = 4*3 laps

⇒ 3-mile workout = 12 laps

Thus,12 laps would have to run for a 3-mile workout.

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Answer:

B. Each row increases by 1 circle.

Answer:

3/2

Step-by-step explanation:

Probability = successes / all events

Odds = successes / failures

P = 3/5, so there are 3 successes out of 5 trials, which means there are 2 failures.

So the odds are 3/2.

Hi there!

Answer:

[tex]\boxed{11x^2 + x - 1}[/tex]

Step-by-step explanation:

[tex]11x^2-5+x+4[/tex]

[tex]= 11x^2 - 5 + x + 4[/tex]

Now combine the like terms.

[tex]= 11x^2 + -5 + x + 4[/tex]

[tex]= (11x^2) + (x) + (-5 + 4)[/tex]

[tex]= 11x^2 + x + -1[/tex]

Have a great day!

(a) The regular selling price of the watches is $330.

(b) The sale price for the store to break even is $330.

(c) The rate of markdown to sell the watches at the break-even price is 0%.

(a) To find the regular selling price of the watches, we need to consider the unit price the store paid for the shipment and apply the overhead and profit percentages.

The unit price the store paid is $250 less 40%, which can be calculated as:

Unit Price = $250 - (40/100) * $250

Unit Price = $250 - $100

Unit Price = $150

Now, we need to calculate the regular selling price by adding the overhead and profit percentages to the unit price.

Overhead = 65% of cost = (65/100) * $150 = $97.50

Normal profit = 55% of cost = (55/100) * $150 = $82.50

Regular Selling Price = Unit Price + Overhead + Normal Profit

Regular Selling Price = $150 + $97.50 + $82.50

Regular Selling Price = $330

Consequently, the timepieces' usual retail price is $330.

(b) To determine the sale price for the store to break even, we need to consider the cost of the watches, overhead, and normal profit percentages.

Break-even Price = Unit Price + Overhead + Normal Profit

Break-even Price = $150 + $97.50 + $82.50

Break-even Price = $330

Therefore, $330 should also be the sale price for the shop to break even.

(c) The rate of markdown to sell the watches at the break-even price can be calculated by finding the markdown percentage from the regular selling price.

Markdown = Regular Selling Price - Break-even Price

Markdown = $330 - $330

Markdown = $0

Since there is no markdown, the markdown rate required to sell the timepieces at a profit is 0%.

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Answer:

5xy(2x - 3y)

Step-by-step explanation:

The greatest common factor (GCF) of two or more numbers is the largest number that is a factor of all of them.

2*5*x*x*y-3*5*x*y*y

The greatest common factor is 5*x*y. So, we can factor out 5xy to get:

5xy(2x - 3y)

This is the factored expression.

The expected value of the game from the player's perspective is -17/36. This means that the player can expect to lose an average of $0.4722 per game in the long run.

The expected value of a game in probability theory is the expected value of a random variable that represents the player's earnings or losses.

The expected value can be negative or positive depending on the rules of the game, but if the expected value is positive, the player can expect to earn money in the long run.

In this case, the player is given 8 to 1 odds against rolling a double number with two fair dice, and the player wins $8 if a double shows up and the player loses $1 if it does not.

We can calculate the expected value of the game as follows:

Let X be the random variable that represents the player's earnings or losses.

Then X can take on the values -1 and 8, and the probabilities of these outcomes are:

P(X = -1) = 5/6 x 5/6 = 25/36P(X = 8) = 1/6 x 1/6 = 1/36

Therefore, the expected value of X is:E(X) = (-1) x P(X = -1) + 8 x P(X = 8)= (-1) x 25/36 + 8 x 1/36= -25/36 + 8/36= -17/36

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Answer:

2:5

Step-by-step explanation:

divide / simplify the ratio

Answer:

2:5     8:20

Because 2:5 is equivalent to 4:10 and so it 8:20

Answer:

?=6

Step-by-step explanation:

To get ? by itself, we need to divide both sides by -4:

(?)(-4)=-24

(?)=6

Answer:

6

Step-by-step explanation:

Step 1:

( x ) ( - 4 ) = - 24       Equation

Step 2:

- 4x = - 24     Multiply

Step 3:

x = - 24 ÷ - 4     Divide

Answer:

x = 6

Hope This Helps :)

The theorem states that if a system of linear equations, represented by the matrix equation AX = B, has a unique solution and the matrix A is nonsingular. The solution to the given system of equations is x = 2, y = -2, and z = 2.

(a) To prove the theorem, let's assume that A is nonsingular and has a unique solution for the system AX = B. We want to show that the solution is given by X = A^(-1)B.

Multiply both sides of the equation AX = B by A^(-1) to obtain:

A^(-1)(AX) = A^(-1)B

The left side simplifies to:

(I)(X) = A^(-1)B

where I represents the identity matrix.

Therefore, X = A^(-1)B, which proves the theorem.

(b) Now let's solve the given linear equation system using the theorem.

The system of equations is:

x + y + z = 2   ...(1)

x + 0 + z = 0     ...(2)

2xy + 0 = 2      ...(3)

We can represent this system in matrix form as AX = B, where:

A = [[1, 1, 1],

    [1, 0, 1],

    [2, 0, 0]]

X = [[x],

    [y],

    [z]]

B = [[2],

    [0],

    [2]]

To find X, we need to calculate A^(-1) first. Calculating the inverse of matrix A, we get:

A^(-1) = [[0, -1, 1],

          [1, -1, 0],

          [0,  1, -1]]

Now we can use the theorem and multiply A^(-1) with B:

X = A^(-1)B = [[0, -1, 1],

              [1, -1, 0],

              [0,  1, -1]] * [[2],

                               [0],

                               [2]]

Performing the matrix multiplication, we get:

X = [[0*(-2) + (-1)*0 + 1*2],

    [1*(-2) + (-1)*0 + 0*2],

    [0*(-2) + 1*0 + (-1)*2]]

Simplifying further, we obtain:

X = [[2],

    [-2],

    [2]]

Therefore, the solution to the given system of equations is x = 2, y = -2, and z = 2.

Complete Question:

The inverse of a matrix can be applied to the solution of nonhomogeneous linear equations. (a) Prove the theorem: If the system AX= B, where A shows nonsingular and has a unique solution, then the solution is given by X= A-¹B. (b) Solve the linear equation system by following the above theorem, and verify your result. x + y + z = 2 x + 0 + z = 0 2xy + 0 = 2

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Answer:

Valid

Step-by-step explanation:

Because if you study you would most likely know what the test/quiz/exam is about and understand the problems. If you don't study then you would probably not know how to do the work or solve the problems on the quiz/test/exam. (very sorry if wrong!)

Answer:

Hope the picture will help you

Answer:

x = 36, Angles = 72, 108

Step-by-step explanation:

You have two parallel lines crossed by a perpendicular line. That means the value of [tex]2x + 3x = 180[/tex]°

As such we know that:

[tex]2x+3x=5x=180[/tex]°

So we divide by [tex]5[/tex] to get: [tex]180/5 = 36=x[/tex]

Therefore

[tex]x = 36\\2x = 72\\3x = 108[/tex]

And we know it makes sense because [tex]72 + 108 = 180[/tex].

Answer:

p = -4 or p = 4

300 sq. ft.

Step-by-step explanation:

In the first question since it is only the first turn for the player in the game he could only have won or lost 4 points. Therefore the equation would be the following.

p = -4 or p = 4

in the second question we need to calculate the area of the living room, which can be calculated using the following equation by implementing the values given to us in the question.

[tex]\frac{1}{5}a - 25 = 35[/tex] ... add 25 to both sides

[tex]\frac{1}{5}a = 60[/tex]  ... divide 1/5 by both sides

[tex]a = 300[/tex][tex]sq ft.[/tex]

finally, we can see that the area of the living room is 300 sq. ft.

Answer:

I know that it is B but im thinking on what the others can be.

Step-by-step explanation:

Answer:

49

Step-by-step explanation:

If angle two is equal to 41 degrees and the total degree of the angle is 90 degrees you would subtract 41 from 90 to get 49