Simplify 9√2 – 3√7 + 8 – 28 (1 point)

Simplify 92 37 + 8 28 (1 Point)

Answers

Answer 1
Simplified, the expression becomes:
9√2 - 3√7 - 20

Related Questions

One ratio you could use for converting units is 1.000 kilograms 1 gram O A. True O B. False SUB​

Answers

The statement that the ratio 1.000 kilograms to 1 gram can be used for converting units is false. The correct Ratio is 1 kilogram to 1000 grams.

The statement "One ratio you could use for converting units is 1.000 kilograms to 1 gram" is false.

When converting units, it is important to use the correct conversion factors that relate the two units being converted. In this case, the ratio given is 1.000 kilograms to 1 gram, which implies that 1 kilogram is equal to 1 gram. However, this is incorrect.

The correct conversion factor between kilograms and grams is that 1 kilogram is equal to 1000 grams. This means that to convert kilograms to grams, you multiply the value in kilograms by 1000. Conversely, to convert grams to kilograms, you divide the value in grams by 1000.

So, the correct ratio for converting kilograms to grams is 1 kilogram to 1000 grams, or 1:1000. Therefore, the statement that the ratio 1.000 kilograms to 1 gram can be used for converting units is false. The correct ratio is 1 kilogram to 1000 grams.

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What would the points be?

Answers

The points in the graph of the system of inequalities are:

(-2, 0) --> not a solution.

(5, 0) --> not a solution.

(7, 0) --> not a solution.

(0, 7) --> solution.

What would the points be?

Here we can see the graph of a system of inequalities, and there we have the points:

(-2, 0)

(5, 0)

(7, 0)

(0, 7)

You can see that all the points lie on the lines (these are solid lines, meaning that the points on the lines are solutions for the corresponding inequality)

Now, a point is a solution of a system of inequalities only if it solves both of them at the same time.

The only point that is a solution of both inequalities at the same time is point (0, 7).

So the points are:

(-2, 0) --> not a solution.

(5, 0) --> not a solution.

(7, 0) --> not a solution.

(0, 7) --> solution.

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Find the value of z such that 0.516 of the area lies between -z and z

Answers

The value of z such that 0.516 of the area lies between -z and z is approximately 0.05.

To find the value of z such that 0.516 of the area lies between -z and z, we can use the standard normal distribution table or a statistical calculator.

First, we need to find the area under the standard normal curve that lies between -z and z.

Since the standard normal distribution is symmetric, we can find the area to the right of z and then double it to account for both tails.

From the given information, we know that the total area between -z and z is 0.516.

Since the standard normal distribution is standardized with a mean of 0 and a standard deviation of 1, we can use the standard normal distribution table to find the corresponding z-value.

Using the standard normal distribution table, we can look up the area of 0.516.

Looking at the table, we find that the closest area is 0.5149, corresponding to a z-value of approximately 0.05.

Since the standard normal distribution is symmetric, the area to the left of -0.05 is also 0.5149.

Therefore, the z-value that corresponds to an area of 0.516 lies between -0.05 and 0.05.

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The midpoint of AB is M(-1,0). If the coordinates of A are (6,-4), what are the coordinates of B?

Answers

Answer:

B(-8, 4)

Step-by-step explanation:

To find the coordinates of B, use the midpoint formula.

[tex]\boxed{\begin{minipage}{7.4 cm}\underline{Midpoint between two points}\\\\$M=\left(\dfrac{x_2+x_1}{2},\dfrac{y_2+y_1}{2}\right)$\\\\\\where:\\\phantom{ww}$\bullet$ $M$ is the midpoint.\\\phantom{ww}$\bullet$ $(x_1,y_1)$ and $(x_2,y_2)$ are the endpoints.\\\end{minipage}}[/tex]

Let point A be (x₁, y₁). Therefore, (x₁, y₁) = (6, -4).

Let point B be (x₂, y₂).

The midpoint M is (-1, 0).

Substitute these values into the midpoint formula:

[tex](-1, 0)=\left(\dfrac{x_2+6}{2},\dfrac{y_2-4}{2}\right)[/tex]

Solve the x and y coordinates separately:

[tex]\begin{aligned}\dfrac{x_2+6}{2}&=-1\\\\x_2+6&=-2\\\\x_2&=-8\end{aligned}[/tex]                              [tex]\begin{aligned}\dfrac{y_2-4}{2}&=0\\\\y_2-4&=0\\\\y_2&=4\end{aligned}[/tex]

Therefore, the coordinates of point B are (-8, 4).

simplify 1/2 of 1/4 ÷1/3_1/4-3/4+1\2

Answers

Simplifying the given expression results to

-3/8

How to simplify the expression

To simplify the expression using PEMDAS (Parentheses, Exponents, Multiplication and Division from left to right, and Addition and Subtraction from left to right), we'll break it down step by step:

The expression is rewritten as, 1/2 (1/4 ÷ 1/3 - 1/4 - 3/4 + 1/2). hence we start we parenthesis.

Performing division results to

1/2 (3/4 - 1/4 - 3/4 + 1/2)

Performing addition results to

1/2 (3/4 - 1/4 - 5/4)

Performing subtraction results to

1/2 (-3/4)

Now we multiply

-3/8

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Help me pleaseeee. It my math hw you don’t have to do all of them at least do 4 please

Answers

Answer:

#5 - [tex]x=-2[/tex]

#6 - [tex]x=-4[/tex]

#7 - [tex]x=2[/tex]

#8 - [tex]x=10[/tex]

Step-by-step explanation:

Solve the following multi-step equations.

#5 - [tex]-10-7x=-3x-2[/tex]

#6 - [tex]-13-4x=x+7[/tex]

#7 - [tex]x-2=10-5x[/tex]

#8 - [tex]3x-1=4x-11[/tex]

[tex]\hrulefill[/tex]

I will use the SCAM method to solve these multi-step equations.

[tex]\mathbb{S}\text{implify each side of the equation} \\\\\\\mathbb{C}\text{ombine like terms, collect variables on one side }\\\\\\\mathbb{A}\text{dd and/or subtract}\\\\\\\mathbb{M}\text{ultiply and/or divide}[/tex]

What is our goal when solving equations?

Our goal is to isolate the variable.

Remember when solving equations, whatever you do to one side of the equation you must do to the other.  [tex]\hrulefill[/tex]

Now solving #5,

[tex]-10-7x=-3x-2[/tex]

Observing the equation, we notice on either side of the equation we cannot simplify using the distributive property or order of operations ("PEMDAS"). Well will skip to the "C" in SCAM.

Add "7x" to each side of the equation.

[tex]\Longrightarrow -10-7x+7x=-3x-2+7x\\\\\\\Longrightarrow -10=4x-2[/tex]

The variable "x" now appears on one side of the equation. Now we are on the "A" in SCAM.

Add the value of "2" to each side of the equation.

[tex]\Longrightarrow -10+2=4x-2+2\\\\\\\Longrightarrow -8=4x[/tex]

Now on the "M" in SCAM.

Divide both sides of the equation by the value of "4."

[tex]\Longrightarrow \dfrac{-8}{4}=\dfrac{4}{4}x\\\\\\\Longrightarrow -2=x\\\\\\\therefore \boxed{x=-2}[/tex]

Thus, problem #5 is solved.

[tex]\hrulefill[/tex]

For the rest of the problems I will simply show the operations I am doing.

Now solving #6,

[tex]-13-4x=x+7\\\\\\\Longrightarrow -13-4x+4x=x+7+4x\\\\\\\Longrightarrow -13=5x+7\\\\\\\Longrightarrow -13-7=5x+7-7\\\\\\\Longrightarrow -20=5x\\\\\\\Longrightarrow \dfrac{-20}{5}= \dfrac{5}{5}x\\\\\\\Longrightarrow-4=x\\\\\\\therefore \boxed{x=-4}[/tex]

Thus, problem #6 is solved.

[tex]\hrulefill[/tex]

Now solving #7,

[tex]x-2=10-5x\\\\\\\Longrightarrow x-2+5x=10-5x+5x\\\\\\\Longrightarrow 6x-2=10\\\\\\\Longrightarrow 6x-2+2=10+2\\\\\\\Longrightarrow 6x=12\\\\\\\Longrightarrow \dfrac{6}{6}x=\dfrac{12}{6}\\\\\\\therefore \boxed{x=2}[/tex]

Thus, problem #7 is solved.

[tex]\hrulefill[/tex]

Now solving #8,

[tex]3x-1=4x-11\\\\\\\Longrightarrow 3x-1-3x=4x-11-3x\\\\\\\Longrightarrow -1=x-11\\\\\\\Longrightarrow -1+11=x-11+11\\\\\\\Longrightarrow 10=x\\\\\\\therefore \boxed{x=10}[/tex]

The advisor of a school club wants to select 4 of its 25 members to raise and lower the flag each day this week. She assigns a two-digit number from 01 to 25 to each student. What are the numbers that correspond to the members who will raise and lower the flag? Use the random number table below.
97836 74547 79986 58820 36071 17996 59066 36220 46340 66069 51761 41740 39326 52760
The numbers that correspond to the students are (Use a comma to separate answers as needed.)​

Answers

The numbers that correspond to the members who will raise and lower the flag are 97836, 74547, 79986, and 58820.

To select 4 members from a group of 25, we can use the random number table provided to assign numbers to each student and choose the corresponding numbers to identify the members who will raise and lower the flag. Let's go through the process step by step:

Step 1: Assign a two-digit number from 01 to 25 to each student.

We have 25 students, so we can assign each student a number from 01 to 25. Let's match the given numbers with the students:

97836 - Student 1

74547 - Student 2

79986 - Student 3

58820 - Student 4

36071 - Student 5

17996 - Student 6

59066 - Student 7

36220 - Student 8

46340 - Student 9

66069 - Student 10

51761 - Student 11

41740 - Student 12

39326 - Student 13

52760 - Student 14

Note: The remaining students from 15 to 25 are not provided in the given random number table, so we cannot assign numbers to them based on the given information.

Step 2: Choose the corresponding numbers to identify the members who will raise and lower the flag.

Since we need 4 members, we can select any four numbers from the given list that correspond to the assigned numbers of the students. Let's say we choose the first four numbers:

97836 - Student 1 (Will raise and lower the flag)

74547 - Student 2 (Will raise and lower the flag)

79986 - Student 3 (Will raise and lower the flag)

58820 - Student 4 (Will raise and lower the flag)

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(3, 4) and (-7, 7)
find distance

Answers

Step-by-step explanation:

the answer geheieoeokejrhdhhshejekdkhfhsjsjjs

HELP PLEASEEEEEEEEE I BEG

Answers

The population of bacteria in the culture after 13 hours to the nearest whole number is 623

What is doubling time?

The doubling time is the time it takes for a population to double in size/value. It is applied to population growth, inflation, resource extraction, consumption of goods, compound interest.

P(t) = P(o) 2^(t/d)

P(o) = 230

t = 13hours

d = 9hours

Therefore ;

P(t) = 230 × 2^{13/9}

P(t) = 230 × 2^{ 1.44}

P(t) = 230 × 2.71

P(t) = 623.3

Therefore, the population of bacteria after 13 hours to the nearest whole number is 623

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Using Company A's calling plan, the cost of an overseas phone call is a $0.85 connection fee plus 28 cents per minute. If the total cost of the call is $14.85, how long is the phone call?​

Answers

Answer:

50 minutes

Step-by-step explanation:

28 cents = $0.28

Let the call be for x minutes

Total cost = connection fee + x*cost per minute

14.85 = 0.85 + 0.28x

14.85 - 0.85 = 0.28x

0.28x =  14

x = 14/0.28

x = 50

Answer:

50 min

Step-by-step explanation:

Let the call be for x minutes

14.85 = 0.85 + 0.28x

0.28x = 14

x = 14/0.28 = 50

a die is thrown once. what is the probability that the score is a factor of 6

Answers

Answer:

6 by 36 is the answer.....

A town's population has been growing linearly. In 2003 the population was 28,000. The population has been growing by 1200 people each year.

Write an equation for the population, P, years after 2003.

Answers

The population increases by 1200 people each year starting from the base population of 28,000 in 2003.

To write an equation for the population, P, years after 2003, we can use the information given about the population growth.

We know that in 2003, the population was 28,000. Since the population has been growing linearly by 1200 people each year, we can express the growth rate as 1200 people per year.

Let's denote the number of years after 2003 as 'x'. Since the growth rate is constant, we can use the slope-intercept form of a linear equation to represent the population:

P = mx + b

Where:

P represents the population

m represents the slope (growth rate)

x represents the number of years after 2003

b represents the y-intercept (population in the base year)

In this case, the slope, m, is 1200 people per year, and the y-intercept, b, is 28,000 people in 2003.

Plugging in the values, the equation for the population, P, years after 2003 becomes:

P = 1200x + 28000

This equation represents the linear growth of the town's population, where the population increases by 1200 people each year starting from the base population of 28,000 in 2003.

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What is 8x6 explain

Answers

8 x 6 is 48.

8 x 6 can also be written as eight 6s or six 8s.

So 8 + 8 + 8 + 8 + 8 + 8 or 6 + 6 + 6 + 6 + 6 + 6 + 6 + 6.

A weight is attached to a spring and reaches its equilibrium position ​(x​=0). It is then set in motion resulting in a displacement of ​x=12 cos t, where x is measured in centimeters and t is measured in seconds. See the figure shown to the right. Answer parts ​(a) and ​(b).

Answers

a. The spring's displacement when t = 0 is 12 cm.

The spring's displacement when t = π/3 is 6 cm.

The spring's displacement when t= 3π/4 is -6√2 cm.

b. The spring's velocity when t = 0 is 0 cm/sec.

The spring's velocity when t = π/3 is -6√3 cm/sec

The spring's velocity when t= 3π/4 is -6√2 cm/sec.

How to determine the spring's displacement?

a. When t = 0, the spring's displacement can be calculated by using the given displacement equation:

x = 12cost

x(0) = 12cos(0)

x(0) = 12 cm.

When t = π/3, the spring's displacement can be calculated by using the given displacement equation:

x = 12cost

x(π/3) = 12cos(π/3)

x(π/3) = 12 × 1/2 = 6 cm.

When t = 3π/4, the spring's displacement can be calculated by using the given displacement equation:

x = 12cost

x(3π/4) = 12cos(3π/4)

x(3π/4) = 12 × -√2/2 = -6√2 cm.

Part b.

In order to determine the spring's velocity, we would have to take the first derivative of the displacement equation with respect to time;

v(t) = dx/dt = -12sint

When t = 0, the spring's velocity can be calculated as follows:

v(0) = -12sin(0)

v(0) = 0 cm/sec.

When t = π/3, the spring's velocity can be calculated as follows:

v(π/3) = -12sin(π/3)

v(π/3) = -6√3 cm/sec.

When t = 3π/4, the spring's velocity can be calculated as follows:

v(3π/4) = -12sin(3π/4)

v(3π/4) = -6√2 cm/sec.

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Missing information:

The question is incomplete and the complete question is shown in the attached picture.

Select the correct answer.

Laura is planning a party for her son. She has $50 dollars remaining in her budget and wants to provide one party favor per person to at least 10 guests. She found some miniature stuffed animals for $6.00 each and some toy trucks for $4.00 each.

Which system of inequalities represents this situation, where x is the number of stuffed animals and y is the number of toy trucks?

A.
6x + 4y ≤ 50
x + y ≤ 10
B.
6x + 4y ≤ 50
x + y ≥ 10
C.
6x + 4y ≥ 50
x + y ≤ 10
D.
6x + 4y ≥ 50
x + y ≥ 10

Answers

Answer: B. 6x + 4y ≤ 50 x + y ≥ 10

Step-by-step explanation: To represent this situation with a system of inequalities, we need to consider two constraints: the budget and the number of guests.

The budget constraint is that the total cost of the party favors should not exceed $50. Since each stuffed animal costs $6 and each toy truck costs $4, the total cost can be expressed as 6x + 4y, where x is the number of stuffed animals and y is the number of toy trucks. To satisfy the budget constraint, we need 6x + 4y to be less than or equal to 50. This gives us the first inequality: 6x + 4y ≤ 50.

The number of guests constraint is that Laura wants to provide at least one party favor per person to at least 10 guests. This means that the total number of party favors should be greater than or equal to 10. Since each party favor is either a stuffed animal or a toy truck, the total number of party favors can be expressed as x + y, where x and y are the same as before. To satisfy the number of guests constraint, we need x + y to be greater than or equal to 10. This gives us the second inequality: x + y ≥ 10.

Therefore, the system of inequalities that represents this situation is:

6x + 4y ≤ 50 x + y ≥ 10

Hope this helps, and have a great day! =)

Alan solved the proportion StartFraction x over 200 EndFraction = StartFraction 8 over 25 EndFraction as shown.

StartFraction x over 200 EndFraction = StartFraction 8 over 25 EndFraction. (8) (x) = (25) (200). 8 x = 5,000. StartFraction 8 x over 8 EndFraction = StartFraction 5,000 over 8 EndFraction. X = 625.

What is Alan’s error?
He got the wrong product when he multiplied 25 by 200.
He got the wrong quotient when he divided 5,000 by 8.
He mixed up the positions of 8 and 25 in the equation (8) (x) = (25) (200).
He mixed up the positions of 8 and 200 in the equation (8) (x) = (25) (200).

Answers

The correct answer is that Alan mixed up the positions of 8 and 25 in the equation (8)(x) = (25)(200). This mistake led to incorrect calculations and the wrong answer.

Alan's error lies in mixing up the positions of 8 and 25 in the equation (8)(x) = (25)(200). In the original proportion, the correct equation is (x/200) = (8/25).

However, Alan mistakenly wrote it as (8)(x) = (25)(200), reversing the positions of 8 and 25. This error leads to incorrect calculations and ultimately an incorrect answer of x = 625.

Let's break down Alan's steps to understand his mistake:

StartFraction x over 200 EndFraction = StartFraction 8 over 25 EndFraction.

Alan correctly writes down the proportion.

(8)(x) = (25)(200).

Here is where Alan's error occurs. Instead of multiplying 8 by x and 25 by 200, he mistakenly swaps their positions. This mistake results in incorrect products.

8x = 5,000.

Alan multiplies incorrectly and obtains 5,000 as the product of 25 and 200.

StartFraction 8x over 8 EndFraction = StartFraction 5,000 over 8 EndFraction.

Alan divides both sides of the equation by 8, which is the correct step.

x = 625.

Alan divides 5,000 by 8 to find the value of x, which is his final incorrect answer. So, the correct option is he mixed up the positions of 8 and 25 in the equation (8) (x) = (25) (200).

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[tex] \frac{x}{n} + 2 = w[/tex]
make x the subject​

Answers

The variable x as the subject​ of the equation is x = n(w - 2)

How to make x the subject​ of the equation

From the question, we have the following parameters that can be used in our computation:

x/n + 2 = w

Subtract 2 frm both sides of the equation

So, we have

x/n = w - 2

Next, we have

x = n(w - 2)

Hence, the solution is x = n(w - 2)

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what is the probability that a data value in a normal distribution is between a z-score of 1.65 and a z-score of 2.24? Round your answer to the nearest tenth of a percent.

Answers

The probability that a data value in a normal distribution is between a z-score of 1.65 and a z-score of 2.24 is approximately 6.9%.

To calculate the probability, we need to use the standard normal distribution table or a statistical calculator.

Look up the cumulative probability for the lower z-score (1.65):

From the standard normal distribution table or a statistical calculator, we find that the cumulative probability for a z-score of 1.65 is approximately 0.9505.

Look up the cumulative probability for the higher z-score (2.24):

Similarly, the cumulative probability for a z-score of 2.24 is approximately 0.9875.

Calculate the probability between the two z-scores:

To find the probability between the two z-scores, we subtract the cumulative probability of the lower z-score from the cumulative probability of the higher z-score.

Probability = Cumulative probability (Higher z-score) - Cumulative probability (Lower z-score)

Probability = 0.9875 - 0.9505

Probability = 0.037

Convert the probability to a percentage:

Multiply the probability by 100 to express it as a percentage.

Probability (in percentage) = 0.037 × 100

Probability (in percentage) = 3.7%

Rounded to the nearest tenth of a percent, the probability that a data value in a normal distribution is between a z-score of 1.65 and a z-score of 2.24 is approximately 6.9%.

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The sum of two numbers is 31. Twice the smaller number is 11 more than the larger number. What is the value of the larger number?

Answers

Answer:

Let s = smaller number

l = larger number

s + l = 31

2s = l + 11

2(31 - l) = l + 11

62 - 2l = l + 11

3l = 51, so l = 17 and s = 14.

The larger number is 17, and the smaller number is 14.

What is 8.7x0.45 if you multiply it

Answers

The solution to the multiplication of the decimals is; 39.15

How to multiply decimals?

One of the ways to multiply decimals is as follows;

To multiply decimals, first multiply as if there is no decimal.

Second step is to count the number of digits after the decimal in each factor.

Last step is to put the same number of digits behind the decimal in the product.

Now, we want to multiply the decimals given as;

8.7 × 0.45

Converting them to fractions gives us;

(87/10) × (45/10)

= 3915/100

= 39.15

Thus, that is the solution to the multiplication of the decimals.

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What is the simplified form of the expression (-3x^2 + x + 5) − (4x^2 − 2x)

Answers

The simplified form of the expression (-3x² + x + 5) - (4x² - 2x) is -7x² + 3x + 5.

To simplify the expression (-3x² + x + 5) - (4x² - 2x)

you will have to perform the subtraction of the two polynomials.

This can be done by first removing the brackets by applying the negative sign of the second polynomial.

After removing the brackets, you can combine like terms.

Hence;

(-3x² + x + 5) - (4x² - 2x)

= -3x²+ x + 5 - 4x²+ 2x (applying negative sign)

= -3x² - 4x² + x + 2x + 5 (combining like terms)

= -7x² + 3x + 5

Therefore, the simplified form of the  given expression is -7x² + 3x + 5.

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Segments AC and BD are diameters of Circle E. If arc ACD = 326 then what does arc CDB equal?

Answers

Answer:

Since segments AC and BD are diameters of Circle E, angle ACD is a central angle that intercepts arc ACD, and angle BCD is also a central angle that intercepts arc ACD. Therefore, arc ACD is divided into two equal arcs, arc CDB and arc CAB, by the diameter CD.

Since arc ACD is 326 degrees, each of arc CDB and arc CAB is 326/2 = 163 degrees.

Therefore, arc CDB equals 163 degrees.

How many 9/4 hours are there in 3/4 hour?

1/3
3
1/4
4

Answers

Answer: 1/4

Step-by-step explanation:

Part D
Assuming that any increase occurs in whole dollar amounts, what is the maximum possible increase that maintains
the desired minimum revenue? Explain why this is true.

Answers

The desired minimum revenue is $3. See the reason below.

What is the reason why the above is true?

Charge= b, Customer= c, Revenue= r

r= bc, currently, r= 16*10= $160

We know that: b+1 ⇒ c-2  and the target is r ≥ 130

So, this will all be reflected as -

b=10+x ⇒ c= 16-2x

(10+x)(16-2x) ≥ 130

160 -20x +16x - 2x² ≥ 130

-2x² - 4x + 30 ≥ 0

x² + 2x -15 ≤ 0

(x+1)² ≤ 4²

x+1 ≤ 4 (negative value not considered)

x ≤ 3

As we see the max increase amount is $3, when the revenue will be  -

(10+3)*(16-3*2)= 13*10= $130

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Full Question:

Although part of your question is missing, you might be referring to this full question:

Noah manages a buffet at a local restaurant. He charges $10 for the buffet. On average, 16 customers choose the buffet as their meal every hour. After surveying several customers, Noah has determined that for every $1 increase in the cost of the buffet, the average number of customers who select the buffet will decrease by 2 per hour. The restaurant owner wants the buffet to maintain a minimum revenue of $130 per hour. Noah wants to model this situation with an inequality and use the model to help him make the best pricing decisions. Assuming that any increase occurs in whole dollar amounts, what is the maximum possible increase that maintains the desired minimum revenue? Explain why this is true.

please awnser ASAP i will brainlist

Answers

The second coordinate of the given first coordinate is determined as;

f(0) = 1

(1) = 6.06.

What is the second coordinate of the given coordinate?

The second coordinate of the given first coordinate is calculated by applying the following method as follows;

The given function;

F(x) = [tex]4^{1.3x}[/tex]

The value of f(0) is calculated as;

f (0) = [tex]4^{1.3 \times 0}[/tex] = 4⁰ = 1

The value of f(1) is calculated as;.

f (1) = [tex]4^{1.3 \times 1} = 4^{1.3}[/tex] = 6.06

Thus, the second coordinate of the given first coordinate is determined by applying the appropriate substittue of the function as shown above.

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What positive value of b makes this equation true
Leave your answer in radical form.
9 to the power of 2 b to the power of 2 = 12 to the power of 2

Answers

Answer:

[tex]\huge\boxed{\sf b = 4/3}[/tex]

Step-by-step explanation:

Given equation:

[tex]9^2 \times b^2 = 12^2[/tex]

So,

81 × b² = 144

Divide both sides by 81

b² = 144 / 81

b² = (12 × 12) / (9 × 9)

b² = 12² / 9²

Take square root on both sides

√b² = √(12²/9²)

b = 12 / 9

b = 4 / 3

[tex]\rule[225]{225}{2}[/tex]

Mary is making some shirts for her school's drama department. The fabric store has
yards of the fabric she wants in stock. But this quantity of fabric can make only
shirts. What length of fabric does Mary need to buy if she wants to sew 2 shirts?

Answers

The length of fabric Mary need to buy if she wants to sew 2 shirts is:

[tex]4\frac{3}{4}[/tex]  yards

What length of fabric does Mary need to buy if she wants to sew 2 shirts?

A fraction represents the parts of a whole or collection of objects e.g. 3/4 shows that out of 4 equal parts, we are referring to 3 parts.

We have that:

3 1/6 yards of the fabric  can make only 1 1/3 shirts.

To find the length of fabric that will sew 2 shirts. We will use the ratio of the number of yards to number of shirts.

Let L be the length of fabric for 2 shirts. Thus, we can say:

[tex]\frac{3\frac{1}{6} }{1\frac{1}{3} } = \frac{L}{2}[/tex]

[tex]L = 2 * \frac{3\frac{1}{6} }{1\frac{1}{3} }[/tex]

[tex]L = 2 * 2\frac{3}{8}[/tex]

[tex]L = 4\frac{3}{4}[/tex]  yards

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Complete Question

Mary is making some shirts for her school's drama department. The fabric store has 3 1/6 yards of the fabric she wants in stock. But this quantity of fabric can make only 1 1/3 shirts. What length of fabric does Mary need to buy if she wants to sew 2 shirts?

Which expression is equivalent to (f g) (5)?
f (5) times g (5)
f (5) + g (5)
5 f (5)
5 g (5)

Answers

The expression that is equivalent to the composite function (f ° g) (5) is; Option A: f (5) times g (5)

How to solve composite functions?

A composite function is defined as an operation where two functions say f and g, generate a new function say h in such a way that h(x) = g(f(x)). It means here that function g is said to be applied to the function of x. So, this basically,l tells us that a function is applied to the result of another function.

We want to find (f ° g) (5)

This simply means f(5) × g(5)

The composite function definition demands that must be the expression of the the question and as such option A is the only correct option.

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Answer:

f(5) x g(5)

Step-by-step explanation:

(fg)(5) = (f x g)(5) = f(5) x g(5)

Jose wakes up ealry if and only if he is going for a bike ride what is the contrapositive

Answers

The contrapositive of the sentence is this: Jose isn't going for a bike ride if and only if he doesn't wake up early.

What is a contrapositive?

A contrapositive is a statement that challenges both the predicate and the subject of a given sentence. In the above sentence, the statement is that Jose wakes up early if and only if he is going for a bike ride.

The contrapositive now challenges the subject's action of waking up early and going for a bike ride. The hypothesis and conclusion are disputed.

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The figure below is a net for a right rectangular prism.
7 cm
7 cm
10 cm
10 cm
13 cm
10 cm
10 cm

Answers

A net is a two-dimensional pattern that can be folded into a three-dimensional shape. The figure you provided is a net for a right rectangular prism with dimensions 10 cm x 7 cm x 13 cm. It consists of six rectangles, where the two rectangles on the ends have dimensions of 10 cm x 7 cm, and the four rectangles in the middle have dimensions of 13 cm x 7 cm.

To create the right rectangular prism from the net, you would need to cut along the solid lines and fold along the dashed lines. The two rectangles with dimensions 10 cm x 7 cm would become the top and bottom faces of the prism, while the four rectangles with dimensions 13 cm x 7 cm would become the four side faces of the prism. When folded and glued or taped together, the prism would have a height of 10 cm, a width of 7 cm, and a length of 13 cm.

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