Can someone help me please i really need help with this.

use the Remainder Theorem and synthetic division please

Can Someone Help Me Please I Really Need Help With This.use The Remainder Theorem And Synthetic Division

Answers

Answer 1

The value of the function at x = -10, x = 2, and x = 5 will be 20,201, 17, and 1,226, respectively.

What is a function?

A function is an assertion, concept, or principle that establishes an association between two variables. Functions may be found throughout mathematics and are essential for the development of significant links.

The function is given below.

f(x) = 2x⁴ + x² - 10x + 1

At x = - 10, the value of the function is given as,

f(-10) = 2(-10)⁴ + (-10)² - 10(-10) + 1

f(-10) = 20,201

At x = 2, the value of the function is given as,

f(2) = 2(2)⁴ + (2)² - 10(2) + 1

f(2) = 17

At x = 5, the value of the function is given as,

f(5) = 2(5)⁴ + (5)² - 10(5) + 1

f(5) = 1,226

The value of the function at x = -10, x = 2, and x = 5 will be 20,201, 17, and 1,226, respectively.

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Related Questions

A box contains 8 green marbles and 17 white marbles. If the first marble chosen was a green marble, what is the probability of choosing, without replacement, a white marble? Express your answer as a fraction or a decimal number rounded to four decimal places.

Answers

Answer:

Step-by-step explanation:

[tex]\frac{17}{25}[/tex]


Convert the following to Degrees: 5/18 Counter-Clockwise

Answers

5/18 counter-clockwise is equivalent to 100 degrees counter-clockwise.

What is Fraction ?

A fraction is a number that represents a part of a whole or a ratio between two quantities. It is expressed as a ratio of two integers, with the numerator (top number) representing the part or quantity being considered and the denominator (bottom number) representing the total or whole.

To convert a fraction of a full rotation to degrees, we can use the fact that a full rotation is equivalent to 360 degrees.

In this case, 5/18 represents a fraction of the full rotation, where the numerator (5) represents the number of counter-clockwise rotations and the denominator (18) represents the total number of rotations in a full circle.

To find the number of degrees, we can multiply the fraction by 360 degrees:

(5/18) * 360 = 100 degrees

Therefore, 5/18 counter-clockwise is equivalent to 100 degrees counter-clockwise.

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I need help with choosing the correct answer for the second part of A.) this is a Elementary Statistics homework problem

Answers

The answer to this would be C. - Explanation - there is a small probability that a healthy person would get a fever, so this cutoff prevents most false-positives from occurring, which is the goal.

The histogram represents data collected on the frequency of how far the tide rose, in feet, up the beach from the buoy.

A histogram titled Tides For 15 Days with an x-axis labeled Measurement In Feet with intervals of 1 to 5, 6 to 10, 11 to 15, 16 to 20, and 21 to 25. The y-axis is labeled Frequency and starts at 0 with tick marks every one unit up to 7. There is a shaded bar above 1 to 5 that stops at 2, above 6 to 10 that stops at 6, above 11 to 15 that stops at 2, above 16 to 20 that stops at 5, and above 21 to 25 that stops at 1.

Which statement best describes the spread and distribution of the data?

The data is almost symmetric, with a maximum range of 21. This means that the tide frequently measured around 11 to 15 feet.
The data is skewed, with a maximum range of 24. This means that the tide was frequently very high in the 21 to 25 feet range.
The data is bimodal, with a maximum range of 24. This means that the tide was frequently between 6 to 10 or 16 and 20 feet.
The data is symmetric, with a maximum range of 20. This means that the tide frequently measured around 1 to 5 feet.

Answers

The correct statement regarding the histogram is given as follows:

The data is bimodal, with a maximum range of 24. This means that the tide was frequently between 6 to 10 or 16 and 20 feet.

What is an histogram?

An histogram is a graph that shows the number of times each element of x was observed.

Hence the number of observations of each interval is:

1 to 5: 2 observations.6 to 10: 5 observations.11 to 15: 2 observations.16 to 20: 6 observations.21 to 25: 1 observations.

Here are two similarly high bins, hence the distribution can be said to be bimodal, with maximum range given as follows:

25 - 5 = 21 - 1 = 20.

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Answer: its d

Step-by-step explanation:

A man wants to set up a 529 college savings account for his granddaughter. How much would he need to deposit each year into the account in order to have $80,000 saved up for when she goes to college in 15 years, assuming the account earns a 6% return.

Annual deposit: $

Answers

We can use the future value formula for an annuity to solve this problem:

FV = PMT * ((1 + r)^n - 1) / r

where:

FV is the future value of the annuity

PMT is the regular payment or deposit

r is the annual interest rate

n is the number of periods (in this case, the number of years)

We want to solve for PMT, so we can rearrange the formula to get:

PMT = FV * r / ((1 + r)^n - 1)

Plugging in the given values, we get:

FV = $80,000

r = 6% = 0.06

n = 15 years

So, the annual deposit required is:

PMT = $80,000 * 0.06 / ((1 + 0.06)^15 - 1) ≈ $3,782.58

Therefore, the man would need to deposit approximately $3,782.58 into the account each year in order to have $80,000 saved up for his granddaughter's college education in 15 years, assuming a 6% return.

1354.24 rounded to the nearest tenth​

Answers

The answer is 1354.2

Can someone help me on this?

Answers

Answer:

X+15 is the answer..................

ILL GIVE BRAINLIEST!! Pls answer A
Find the mÁB
104°
126°
B
D

Answers

Answer:ILL GIVE BRAINLIEST!! Pls answer A

Find the mÁB

104°

126°

B

D

Step-by-step explanation:ILL GIVE BRAINLIEST!! Pls answer A

Find the mÁB

104°

126°

B

D

need help with This Math ​

Answers

The perimeter of triangle QST is 32.

option D.

What is the perimeter of triangle QST?

The perimeter of triangle QST is calculated by determining the value of x as shown below.

If length SQ = length ST, then angle STQ must be equal to angle SQT,  so we will have the following equation.

Cos T = ( 3x - 1 ) / ( 5x + 1 )

Cos Q = ( 2x + 1 ) / (5x + 1 )

Cost T = Cos Q

( 3x - 1 ) / ( 5x + 1 ) = ( 2x +1 ) / ( 5x + 1 )

3x - 1 = 2x + 1

x = 2

The perimeter of triangle QST is calculated as;

= 5x + 1  + (3x -1  + 2x + 1 ) + 5x + 1

= 15x + 2

= 15 (2)  + 2

= 32

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Multiply f and 7. Then add 9 in expression

Answers

7f+9 ???
Bc it’s multiply so 7 x f = 7f
— 7f add 9
= 7f+9

Write the missing digits

Answers

Answer:

A

Step-by-step explanation:

step by step you will learn

A register has 5376 business cards to give out the register gives out an equal number of business cards in 48 days until there are no more business cards live how many business cards does the register give out each day a 111 business cards be 112 business cards C1 130 business cards D1 114 business cards you have to divide 48÷5376

Answers

Answer: 112 business cards

Step-by-step explanation:

    We will divide the number of business cards by the number of days cards were handed out to see how many cards were handed out per day.

5,376 cards / 48 days = 112 business cards


Directions - Evaluate the following exponential function for the x-values in the table. Complete the table with y-values.

y=9x( 3/1 ) x

Answers

Some numeric values of the exponential function y = 9(3)^x are given as follows:

x = -2, y = 1.x = -1, y = 3.x = 0, y = 9.x = 1, y = 27.x = 2, y = 81.

How to obtain the numeric value of a function or of an expression?

To obtain the numeric value of a function or of an expression, we substitute each instance of the variable in the function or in the expression by the value at which we want to find the numeric value.

The function for this problem is given as follows:

y = 9(3)^x.

Hence some numeric values of the function are given as follows:

x = -2, y = 1. -> y = 9 x (3)^(-2).x = -1, y = 3. -> y = 9 x (3)^(-1).x = 0, y = 9. -> y = 9 x (3)^(0).x = 1, y = 27. -> y = 9 x (3).x = 2, y = 81. -> y = 9 x (3)^(2).

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Find the volume of the sphare.

Answers

The volume of the sphere is,

⇒ The volume of sphere = 14,130 cm³

What is Multiplication?

The multiplication means to add a number to itself with a particular number of times. And, Multiplication can be viewed as a process of repeated addition.

Given that;

Radius of sphere = 15 cm

Now, We know that;

⇒ The volume of sphere = 4/3πr³

Substitute value of Radius = 15 cm

⇒ The volume of sphere = 4/3 × 3.14 × 15³

⇒ The volume of sphere = 14,130 cm³

Thus, The volume of the sphere is,

⇒ The volume of sphere = 14,130 cm³

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A line passes through the point (2, -3) and has a slope of - 4.
Write an equation in slope-intercept form for this line.

Answers

y=-4x + 5
hope it helps
the formula for equations like this is :
y - y1 = m (x - x1)

Write the ratio as a fraction in lowest terms. 44 minutes to 5 hours

Answers

Answer:Let's convert hours to minutes:

Now we have:

44 minutes to 300 minutes

We write the ratio as a fraction:

We can reduce both the numerator and denominator by 4, to get:

The correct answer is:

Step-by-step explanation:

Following are the transactions in the books of a Khaptad Ltd: Issues 4000, 12% debentures of Rs. 100 each at Rs 100 and redeemable at Rs 100. Issued 4000, 12% debentures of Rs. 100 each at Rs 100 and redeemable at Rs 90 Issued 4000, 12% debentures of Rs. 100 each at Rs 100 and redeemable at Rs 110 Issued 4000, 12% debentures of 100 each at Rs 110 and redeemable at Rs 100. Issued 4000, 12% debentures of 100 each at Rs 110 and redeemable at Rs 90 Issued 4000, 12% debentures of 100 each at Rs 110 and redeemable at Rs 110. Issued 4000, 12% debentures of Rs.100 each at Rs 90 and redeemable at Rs 100. Issued 4000, 12% debentures of Rs.100 each at Rs 90 redeemable at Rs 105. Issued 4000, 12% debentures of Rs.100 each at Rs 90 and redeemable Rs 95 Required: Journal entries: a. for the issue of debentures b. for the redemption of debentures​

Answers

a. Journal entries for the issue of debentures:

Issues 4000, 12% debentures of Rs. 100 each at Rs 100 and redeemable at Rs 100.

Debit: Cash/Bank Account (4000 x 100) = 400,000

Credit: Debentures Account (4000 x 100) = 400,000

Issued 4000, 12% debentures of Rs. 100 each at Rs 100 and redeemable at Rs 90.

Debit: Cash/Bank Account (4000 x 100) = 400,000

Credit: Debentures Account (4000 x 90) = 360,000

Credit: Discount on Issue of Debentures Account (4000 x 10) = 40,000

Issued 4000, 12% debentures of Rs. 100 each at Rs 100 and redeemable at Rs 110.

Debit: Cash/Bank Account (4000 x 100) = 400,000

Credit: Debentures Account (4000 x 110) = 440,000

Credit: Premium on Issue of Debentures Account (4000 x 10) = 40,000

Issued 4000, 12% debentures of 100 each at Rs 110 and redeemable at Rs 100.

Debit: Cash/Bank Account (4000 x 110) = 440,000

Credit: Debentures Account (4000 x 100) = 400,000

Credit: Loss on Issue of Debentures Account (4000 x 10) = 40,000

Issued 4000, 12% debentures of 100 each at Rs 110 and redeemable at Rs 90.

Debit: Cash/Bank Account (4000 x 110) = 440,000

Credit: Debentures Account (4000 x 90) = 360,000

Credit: Discount on Issue of Debentures Account (4000 x 20) = 80,000

Issued 4000, 12% debentures of 100 each at Rs 110 and redeemable at Rs 110.

Debit: Cash/Bank Account (4000 x 110) = 440,000

Credit: Debentures Account (4000 x 110) = 440,000

Issued 4000, 12% debentures of Rs.100 each at Rs 90 and redeemable at Rs 100.

Debit: Cash/Bank Account (4000 x 90) = 360,000

Credit: Debentures Account (4000 x 100) = 400,000

Credit: Discount on Issue of Debentures Account (4000 x 10) = 40,000

Issued 4000, 12% debentures of Rs.100 each at Rs 90 redeemable at Rs 105.

Debit: Cash/Bank Account (4000 x 90) = 360,000

Credit: Debentures Account (4000 x 105) = 420,000

Credit: Premium on Issue of Debentures Account (4000 x 15) = 60,000

b. for the redemption of debentures:

Redemption of debentures issued at Rs. 100 and redeemable at Rs. 100:

Debenture Redemption A/C Dr. 400,000

To Debentureholders A/C 400,000

(Being the debentures of Rs. 100 each redeemed at par)

Redemption of debentures issued at Rs. 100 and redeemable at Rs. 90:

Debenture Redemption A/C Dr. 360,000

Loss on Redemption A/C Dr. 40,000

To Debentureholders A/C 400,000

(Being the debentures of Rs. 100 each redeemed at a discount of Rs. 10)

Redemption of debentures issued at Rs. 100 and redeemable at Rs. 110:

Debenture Redemption A/C Dr. 440,000

Gain on Redemption A/C Dr. 40,000

To Debentureholders A/C 400,000

(Being the debentures of Rs. 100 each redeemed at a premium of Rs. 10)

Redemption of debentures issued at Rs. 110 and redeemable at Rs. 100:

Debenture Redemption A/C Dr. 400,000

To Debentureholders A/C 400,000

(Being the debentures of Rs. 110 each redeemed at par)

Redemption of debentures issued at Rs. 110 and redeemable at Rs. 90:

Debenture Redemption A/C Dr. 360,000

Loss on Redemption A/C Dr. 40,000

To Debentureholders A/C 400,000

(Being the debentures of Rs. 110 each redeemed at a discount of Rs. 20)

Redemption of debentures issued at Rs. 110 and redeemable at Rs. 110:

Debenture Redemption A/C Dr. 440,000

To Debentureholders A/C 400,000

Gain on Redemption A/C Cr. 40,000

(Being the debentures of Rs. 110 each redeemed at par with a premium of Rs. 10)

Redemption of debentures issued at Rs. 90 and redeemable at Rs. 100:

Debenture Redemption A/C Dr. 400,000

Loss on Redemption A/C Dr. 10,000

To Debentureholders A/C 390,000

To Securities Premium Reserve A/C 20,000

(Being the debentures of Rs. 90 each redeemed at a discount of Rs. 10 and Securities Premium Reserve credited with Rs. 2.50 per debenture redeemed)

Redemption of debentures issued at Rs. 90 and redeemable at Rs. 105:

Debenture Redemption A/C Dr. 420,000

Loss on Redemption A/C Dr. 30,000

To Debentureholders A/C 390,000

To Securities Premium Reserve A/C 30,000

(Being the debentures of Rs. 90 each redeemed at a discount of Rs. 15 and Securities Premium Reserve credited with Rs. 7.50 per debent

please help me :(

use the Remainder Theorem and synthetic division please

Answers

The value of the functions are,

⇒ f (- 10) = 20201

⇒ f (2) = 17

⇒ f (3) = 143

What is mean by Function?

A relation between a set of inputs having one output each is called a function. and an expression, rule, or law that defines a relationship between one variable (the independent variable) and another variable (the dependent variable).

Given that;

The value of function is,

⇒ f (x) = 2x⁴ + x² - 10x + 1

Now, We can find all the values as;

At x = - 10;

⇒ f (x) = 2x⁴ + x² - 10x + 1

⇒ f (- 10) = 2 (- 10)⁴ + (- 10)² - 10 (- 10) + 1

⇒ f (- 10) = 20000 + 100 + 100 + 1

⇒ f (- 10) = 20201

At x = 2;

⇒ f (x) = 2x⁴ + x² - 10x + 1

⇒ f (2) = 2 (2)⁴ + (2)² - 10 (2) + 1

⇒ f (2) = 32 + 4 - 20 + 1

⇒ f (2) = 17

At x = 3;

⇒ f (x) = 2x⁴ + x² - 10x + 1

⇒ f (3) = 2 (3)⁴ + (3)² - 10 (3) + 1

⇒ f (3) = 162 + 9 - 30 + 1

⇒ f (3) = 143

Thus, The value of the functions are,

⇒ f (- 10) = 20201

⇒ f (2) = 17

⇒ f (3) = 143

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4. 6.9B Luke is about to start cooking. He places some butter in a pan and heats up the pan. As the pan heats up, the butter begins to melt. How is the energy moving? The cold is moving from the pan and into the butter The cold is moving from the butter and into the pan The heat is moving from the pan and into the butter The heat is moving from the butter and into the pan

Answers

As the temperature of the pan increases, the heat transfer from the butter to the pan increases, causing the butter to melt faster. Ultimately, this heat transfer is necessary for Luke to prepare his food. Without it, the butter would stay solid and would not cook properly.

What is heat transfer?

Heat transfer is the transfer of energy from one place to another due to a difference in temperature. Heat transfer can occur through conduction, convection, and radiation. Heat is always transferred from hotter to colder objects and the rate of transfer depends on the temperature difference between the two and the material it is passing through. Heat transfer is essential in many natural and man-made processes.

The energy is moving in two directions. Cold is moving from the pan and into the butter, while the heat is moving from the butter and into the pan. This is known as a heat transfer. Heat transfers occur when two objects at different temperatures come into contact with each other. In this case, the cold pan is coming into contact with the warm butter, causing the heat to move from the butter and into the pan. This heat transfer causes the butter to melt. As the temperature of the pan increases, the heat transfer from the butter to the pan increases, causing the butter to melt faster. Ultimately, this heat transfer is necessary for Luke to prepare his food. Without it, the butter would stay solid and would not cook properly.

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Pleaseeee yelp meeeeee

Answers

Answer:

x ≤ 6.8

Step-by-step explanation:

1.25x + 6.50 ≤ 15

1.25x ≤ 8.5

x ≤ 6.8

So, the answer is x ≤ 6.8

Answer:

Below

Step-by-step explanation:

1.25x + 6.50 <= 15     SUBTRACT 6.50 from both sides of the equation

  1.25x ≤ 8.50            DIVIDE both sides by 1.25

         x ≤ 6.8

Which of these correctly expresses the system of equations in standard form

Answers

Equations that correctly expresses the system of equations in standard form are x + y = 22 and 3x + 4y = 76.

What is equation?

An equation is a formula that expresses the equality of two expressions, by connecting them with the equals sign =.

Given,

Cost of blue sea shells = $3

Cost of pink sea shells = $4

Cost of 22 sea shells = $76

Let number of blue sea shells is x and number of pink sea shells is y

then number of total shells

x + y = 22

Cost of shells

3x + 4y = 76

Hence, x + y = 22 and 3x + 4y = 76 are the equations that correctly expresses the system of equations in standard form

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Find the Rate. (Round to the Nearest Tenth)
Principal = $900
Time = 1 year
Interest = $76.50

Answers

Answer:

$ 1,937.50.

Step-by-step explanation:

First, converting R percent to r a decimal

r = R/100 = 3.875%/100 = 0.03875 per year,

then, solving our equation

I = 10000 × 0.03875 × 5 = 1937.5

I = $ 1,937.50

The simple interest accumulated

on a principal of $ 10,000.00

at a rate of 3.875% per year

for 5 years is $ 1,937.50.

(Score for Question 3: of 5 points) 1. a). Find the inverse of the function, f(x) = (x - 2)3 - 3. Please show all work in finding the inverse Answer: b) Now graph the inverse function f-1 (x) using the equation you found as the answer to part a) No computer-generated graphs will be accepted. Remember to clearly indicate at least three (3) points on the graph

Answers

The inverse of function is (x + 3)^(1/3) + 2 and the graph is attached below

What is the inverse of the function

a) To find the inverse of the function f(x) = (x - 2)^3 - 3, we can follow these steps:

1. Replace f(x) with y: y = (x - 2)^3 - 3

Solve for x in terms of y:

a. Add 3 to both sides: y + 3 = (x - 2)^3

b. Take the cube root of both sides: (y + 3)^(1/3) = x - 2

c. Add 2 to both sides: x = (y + 3)^(1/3) + 2

Replace x with f^-1(x): f^-1(x) = (x + 3)^(1/3) + 2

b) To graph the inverse function f^-1(x), we can use the equation we found in part a) and plot some points:

When x = 0, f^-1(x) = (0 + 3)^(1/3) + 2 = 3^(1/3) + 2When x = 1, f^-1(x) = (1 + 3)^(1/3) + 2 = 2^(1/3) + 2When x = 3, f^-1(x) = (3 + 3)^(1/3) + 2 = 2 + 2 = 4

So we have three points: (0, 3^(1/3) + 2), (1, 2^(1/3) + 2), and (3, 4).

To sketch the graph, we can also note that the function f(x) = (x - 2)^3 - 3 has a vertical asymptote at x = 2 and a local minimum at (2, -3). Therefore, the inverse function f^-1(x) will have a horizontal asymptote at y = 2 and a local maximum at (4, 2).

Combining all of this information, we can sketch the graph of f^-1(x) as shown below:

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pleaseee i need help.



use the Remainder Theorem and synthetic division, please.

Answers

Using  Remainder Theorem and synthetic division, f(-10) = 191, f(2) = 1, f(3) = 34

What is synthetic division?

A polynomial's coefficients are split one by one in synthetic division.

The split polynomial's zero, which belongs in the box on the far left, has this value.

To use the Remainder Theorem and synthetic division to evaluate f(-10), f(2), and f(3) for the function[tex]f(x)=2x^2+x^2-10x+1[/tex], we can proceed as follows:

First, we need to perform synthetic division using -10, 2, and 3 as the divisors.

1) For f(-10):

The result of the division is 191, so f(-10) = 191.

2) For f(2):

The result of the division is 1, so f(2) = 1.

3) For f(3):

The result of the division is 34, so f(3) = 34.

Therefore, we have:

f(-10) = 191

f(2) = 1

f(3) = 34

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In an examination, Julius scored 5 more marks than John who in turn scored 4 marks less than Grace. If the total mark scored by the three students was 150. Find the mark of each student?

Answers

Making linear equations for given scores, Grace scored 51 marks, John scored 47 marks, and Julius scored 52 marks in the examination.

What is a linear equation, exactly?

A linear equation is an algebraic equation in which each term is either a constant or the product of a constant and a variable, with the degree of each variable being 1. In other words, a linear equation is an equation of a straight line, which can be expressed in the form of y = mx + b, where y is the dependent variable, x is the independent variable, m is the slope of the line, and b is the y-intercept of the line. Linear equations are used to model relationships between variables that have a constant rate of change, such as distance traveled over time or cost per item.

Now,

Let's assume that Grace's score is x.

Then, John's score will be x-4.

And, Julius's score will be x-4+5 = x+1.

The sum of their scores is given as 150. So, we can write an equation as:

x + (x-4) + (x+1) = 150

Simplifying the equation, we get:

3x - 3 = 150

Adding 3 to both sides, we get:

3x = 153

Dividing by 3 on both sides, we get:

x = 51

So, Grace's score is x = 51.

John's score is x-4 = 47.

And, Julius's score is x+1 = 52.

Therefore,

                      Grace scored 51 marks, John scored 47 marks, and Julius scored 52 marks in the examination.

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a restaurant had 13 lb of rice when they opened on Wednesday morning . they cooked and served 3 1/ 12 pounds of it at lunchtime. how much rice was left after lunch

Answers

After finding the difference, we found that the amount of rice left after lunch, written in mixed fraction form, is 9 11/12 lbs.

What are fractions?

Every number of equal parts is represented by a fraction, which also represents a portion of a whole. A single object or a collection of objects might be whole. A fraction is a component or section taken from a whole, which can be any number, a certain amount, or an object. The fractional bar is a horizontal bar that divides the numerator and denominator of every fraction into these two halves. The number of parts into which the whole has been divided is shown by the denominator. How many sections of the fraction are displayed or chosen is shown in the numerator.

Given,

 The amount of rice the restaurant had when they opened = 13 lbs

The amount of rice that was cooked and served = 3 1/12lbs

We are asked to find the amount of rice left.

This can be found by subtracting the amount of rice served from the total amount of rice.

Note that the amount of rice served is in fractions.

So we use fraction subtraction to solve this.

Then,

amount of rice left = 13 - 3 1/12

3 1/12 is a mixed fraction.

We should convert it into an improper fraction.

3 1/12 = (3*12 + 1 ) /12 = 37/12

Now solving,

amount of rice left = 13 - 3 1/12 = 13 - 37/12

Taking LCM to make a common denominator.

LCM = 12

amount of rice left = 13 - 37/12 = (13*12 - 37)/12 = 119/12 = 9 11/12 lbs.

Therefore after finding the difference, we found that the amount of rice left after lunch, written in mixed fraction form, is 9 11/12 lbs.

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The scale factor of two similar cylinders is 5:2.

The volume of the smaller cylinder is 28 m3.

What is the volume of the larger cylinder?

Question 8 options:

700 m3


350 m3


70 m3


437.5 m3


175 m3

Answers

Using the scale factor of 5:2, the volume of the larger cylinder is (C) 70m³.

What is the scale factor?

When a shape is magnified and each side is multiplied by the same number, this is known as a scale factor.

The scaling factor is this figure. Scale factors are used on maps to accurately depict distances between locations.

With a scale factor of 2, the new shape that results from scaling the old shape is twice as large.

So, get the volume of the larger cylinder as follows:

x/5 = 28/2

2x = 28*5

2x = 140

x = 70m³

Therefore, using the scale factor of 5:2, the volume of the larger cylinder is (C) 70m³.

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Complete question:

The scale factor of two similar cylinders is 5:2. The volume of the smaller cylinder is 28 m3. What is the volume of the larger cylinder?

Question 8 options:

A. 700 m3

B. 350 m3

C. 70 m3

D, 437.5 m3

E. 175 m3

IfA+B+C = 180°, prove that:
1) cos² A + cos² B-cos² C=1-2sin A sin B sin C​

Answers

Answer: We will start by using the identity cos² A + sin² A = 1 to replace sin² A with cos² A - 1 in the expression 1 - 2sin A sin B sin C:

1 - 2sin A sin B sin C = 1 - 2sin A (cos B cos C - sin B sin C) [Using the product-to-sum formula for sin (B + C)]

= 1 - 2sin A cos B cos C + 2sin A sin B sin C

Now, we will use the identity cos (180° - x) = -cos x to replace cos C with -cos (A + B):

cos² A + cos² B - cos² C = cos² A + cos² B - cos² (A + B)

= cos² A + cos² B - (cos² A cos² B - 2cos A cos B sin A sin B)

= cos² A + cos² B - cos² A cos² B + 2cos A cos B sin A sin B

= (cos² A)(1 - cos² B) + (cos² B)(1 - cos² A) + 2cos A cos B sin A sin B

= cos² A + cos² B - cos² A cos² B + 2cos A cos B sin A sin B

Now, we will use the identity sin (A + B) = sin A cos B + cos A sin B to rewrite the last term:

cos² A + cos² B - cos² A cos² B + 2cos A cos B sin A sin B

= cos² A + cos² B - cos² A cos² B + 2sin A sin B cos A cos B

= (cos² A)(1 - cos² B) + (cos² B)(1 - cos² A) + 2sin A sin B cos A cos B

= (cos² A + cos² B - 1) + (1 - cos² A)(1 - cos² B) + 2sin A sin B cos A cos B

= 2sin² A sin² B + 2sin A sin B cos A cos B

= 2sin A sin B (sin A cos B + cos A sin B)

= 2sin A sin B sin (A + B)

= 2sin A sin B sin (180° - C) [Using A + B + C = 180°]

= -2sin A sin B sin C

Substituting this expression back into the original equation, we get:

cos² A + cos² B - cos² C = 1 - 2sin A sin B sin C

Therefore, the expression is proved.

Step-by-step explanation:

50 Points!!! Write a verbal sentence to represent 5n/n+3=n-8. Show as much work as possible please. Photo attached. (Only looking for answer to 12B)

Answers

Answer: Your welcome!

Step-by-step explanation:

5n / (n + 3) = n - 8

5n = n(n + 3) - 8(n + 3)

5n = n^2 + 3n - 8n - 24

n^2 - 5n - 24 = 0

n = 4 or n = -6

The verbal sentence to represent 5n/n+3=n-8 is "When n is 4 or -6, 5n divided by n plus 3 is equal to n minus 8."

Pencil boxes cost $15 each. Calculators cost $24 each. Kelly bought a total of 100 pencil boxes and calculators for $2130. How many pencil boxes did she buy?

Answers

Answer:

Step-by-step explanation:

Kelly bought a total of 1500 pencil boxes.

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