2 Given f (x)=x² - 4x, = X (a) Find f (x+h) and simplify. f(x+h)-f(x) (b) Find h and simplify. Part: 0/2 Part 1 of 2 (a) f(x+h)

Answers

Answer 1

For part (a), the answer is f(x+h) = x² + 2xh + h² - 4x - 4h. for par (b) h = -x ± sqrt(x² + 6), the value of h depends on the value of x

(a) To find f(x+h), we substitute x+h for x in the expression for f(x):

f(x+h) = (x+h)² - 4(x+h)

Expanding the square and simplifying, we get:

f(x+h) = x² + 2xh + h² - 4x - 4h

(b) To find h, we start with the expression for f(x+h) that we found in part (a):

f(x+h) = x² + 2xh + h² - 4x - 4h

We want to simplify this expression so that we can identify h. To do this, we start by subtracting f(x) from both sides:

f(x+h) - f(x) = (x² + 2xh + h² - 4x - 4h) - (x² - 4x)

Simplifying, we get:

f(x+h) - f(x) = 2xh + h² - 4h

Now we can identify h by setting this expression equal to some value and solving for h. For example, if we set f(x+h) - f(x) equal to 5, we get:

2xh + h² - 4h = 5

Simplifying and rearranging, we get a quadratic equation in h:

h² + 2xh - 4h - 5 = 0

We can solve this using the quadratic formula:

h = (-2x ± √(4x² + 24))/2

Simplifying, we get:

h = -x ± √(x² + 6)

So the value of h depends on the value of x

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Related Questions

How can we solve traffic problems?

Answers

Answer:

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Traffic problems can be solved by implementing various measures such as improving public transportation, promoting carpooling and ridesharing, creating pedestrian-friendly cities, and implementing smarter traffic management systems.

We proceed to explain some actions to solve traffic problems:

Improving public transportation can help reduce the number of cars on the road, thus reducing traffic congestion. This can be done by increasing the number of public buses and trains, as well as improving their reliability and efficiency.Promoting carpooling and ridesharing can also help reduce traffic problems by encouraging people to share rides instead of driving alone. This can be done through incentives such as discounted parking fees for carpoolers and ridesharing apps. Creating pedestrian-friendly cities can also help reduce traffic problems by encouraging people to walk or bike instead of driving. This can be done by implementing bike lanes, pedestrian-only zones, and safer crosswalks. Implementing smarter traffic management systems can help reduce traffic problems by using technology to monitor and control traffic flow. This can be done through the use of sensors, cameras, and smart traffic lights.

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PLS HURRY 100 POINTS BRAINLIEST
A box contains 4 bags of sugar. The mass of each bag is 6 kilograms. What is the total mass of the box in grams?

240,000 grams
24,000 grams
2,400 grams
240 grams

Answers

Answer:

24,000 grams

Step-by-step explanation:

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Declining Employment A business had 4000 employees in 2000 . Each year for the next 5 years, the number of employees decreased by 2%.

Answers

The total decline in employment over the 5-year period is 384 employees.

In 2000, a business had 4000 employees. Each year for the next 5 years, the number of employees decreased by 2%. To find the number of employees at the end of the 5-year period, we can use the formula:

Number of employees = Initial number of employees * (1 - percentage decrease) ^ number of years

= 4000 * (1 - 0.02) ^ 5

= 4000 * 0.98 ^ 5

= 4000 * 0.9039

= 3615.6

Therefore, the number of employees at the end of the 5-year period is approximately 3616.

To find the total decline in employment over the 5-year period, we can subtract the final number of employees from the initial number of employees:

Total decline in employment = Initial number of employees - Final number of employees

= 4000 - 3616

= 384

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Please help with this!

Answers

Answer:

1)
Number of Seats in next three rows: 37, 41, 45

Number of seats in row 21 = 105

2)

Cost for 4, 5, 6 miles:
Miles            Cost($)
4                    14.50

5                    18.00

6                    21.50

Cost for 12 miles = $42.50

Step-by-step explanation:

1) The arithmetic sequence is
25, 29, 33 ....

Each term is 4 more than the previous term

So the next three terms starting with the 4th term area

33 + 4 = 37
37 + 4 = 41

41 + 4 = 45

In terms of the problem statement these are the number of seats in rows 4, 5, 6 respectively

The general equation for an arithmetic sequence nth term is

a(n) = a(1) + d(n - 1)

Here a(1) is the first term; here a(1) = 25

d = difference between successive terms called the common difference; here common difference = 4

n is of course the number of terms to be considered

using the values we have
a(n) = 25 + 4(n- 1)

= 25 + 4n - 4

= 21 + 4n

So the 21st term is a(21)

a(21) = 21 + 4 (21)

= 21 + 84

= 105

------------------------------------------

2. Another arithmetic sequence

The first term is the charge for the first mile = 4

The second term = 7.5 for 2 miles

The third term = 11.5 for 3 miles

So d = 11 - 7.5 = 7.5 - 4 = 3.5

The cost for 4 miles = 11 + 3.50 = $14.50

The cost for 5 miles = 14.50 + 3.50 = $18

The cost for 6 miles = 18 + 3.50 = $21.50

Using the equation for finding the nth term we get

a(n) = a(1) + d(n - 1)
a(n) = 4 + 3.5(n-1)

a(n) = 4 + 3.5n - 3.5

a(n) = 0.5 + 3.5n

We have the following table

Miles            Cost      ($)

1                     4.00

2                    7.50

3                    11.00

4                    14.50

5                    18.00

6                    21.50

For 12 miles which would correspond to the 12 term

a(12) = 0.5 + 3.5(12)

= 0.5 + 42

= $42.50

Point Q'Q

Q, prime is the image of Q(-5,1)Q(−5,1)Q, left parenthesis, minus, 5, comma, 1, right parenthesis under a translation by 666 units to the right and 222 units down.
What are the coordinates of Q'Q

Q, prime?
(

Answers

The coordinates of Q' after the translation is found to be Q' = (1, -1).

Explain about the translation?

Whenever a figure is relocated from one place to a different one without modifying its dimension, shape, or orientation, a transition known as translation takes place.

If we are aware of the direction and magnitude of the figure's movement, we may draw the translation in the coordinate plane. A form of transformation called translation involves moving a shape both vertically and horizontally (to the left and right) (up and down).

Point Q', which has been translated by 6 units to the right and 2 units down, is the mirror counterpart of Q(-5,1).

Then,

Q' = (-5 + 6, 1 - 2)

Q' = (1, -1)

Thus, the coordinates of Q' after the translation is found to be Q' = (1, -1).

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The correct question is-

Point Q', is the image of Q(-5,1), under a translation by 6 units to the right and 2 units down.

What are the coordinates of Q'?

(3) Letpbe a prime and letG=Zp×​be the set of non-zero elements ofZp​. Show thatGis a group under modular multiplication. Use Lagrange's Theorem to prove Fermat's Little Theorem: Thatap−1≡1(modp)for any integeranot divisible byp

Answers

The set G = Zp × is a group under modular multiplication. This is because the set contains all the non-zero elements of Zp, and modular multiplication satisfies the four group properties:

Closure: The product of any two elements of G is another element of G.Associativity: For any three elements a, b and c in G, (a × b) × c = a × (b × c).Identity element: There is an element 1 in G, such that for all elements a in G, a × 1 = 1 × a = a.Inverse element: For all elements a in G, there exists an inverse element a-1 such that a × a-1 = a-1 × a = 1.

Using Lagrange's Theorem, we can prove Fermat's Little Theorem: that for any integer a not divisible by p, ap-1 ≡ 1 (mod p). Let n be the smallest positive integer such that an ≡ 1 (mod p).

Since a is not divisible by p, the order of a (the smallest value of n) must divide p - 1, or in other words, n | (p - 1). By Lagrange's Theorem, this implies n = p - 1, which in turn implies that ap - 1 ≡ 1 (mod p). This proves Fermat's Little Theorem.

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The number line shows all sullutions of 3x>12. What other inquealitys describes the sullutions

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Another inequality that describes the solutions would be: x ∈ (4, ∞)

What is inequality ?

In mathematics, an inequality is a statement that compares two values, expressions, or quantities, and asserts that they are not equal. Inequalities are often expressed using inequality symbols such as < (less than), > (greater than), ≤ (less than or equal to), or ≥ (greater than or equal to).

The inequality 3x > 12 can be solved by dividing both sides by 3:

3x/3 > 12/3

x > 4

This means that all values of x greater than 4 are solutions to the inequality 3x > 12.

This notation represents the interval of all real numbers greater than 4, including 4 itself. The symbol "(" means that 4 is not included in the interval, while "∞" indicates that the interval extends indefinitely to the right.

Therefore, Another inequality that describes the solutions would be: x ∈ (4, ∞)

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Owen is writing a program that will lock his computer for one hour if the incorrect password is entered more than five times. This set of instructions is an example of GIVING BRAINLIEST AND 25 POINTS


A a loop

B an algorithm

C debugging

D logical reasoning

Answers

The correct option is B an algorithm. If the wrong password is put in more than five times, Owen's computer will lock for an hour. To prevent this, he is building a programme. An illustration of a "algorithm" is this collection of instructions.

Explain about the algorithm?

An algorithm is a process used to carry out a computation or solve a problem. In either hardware-based or software-based routines, algorithms operate as a detailed sequence of instructions that carry out prescribed operations sequentially.

All aspects of information technology leverage algorithms extensively. A simple technique that resolves a recurring issue is typically referred to as an algorithm in computer science and math. Algorithms are essential to automated systems because they serve as specifications for processing data.An initial input and a list of instructions are used by algorithms. The input, which can be described as either words or numbers, is the first batch of information required to make judgements. The input data is subject to a number of calculations or instructions.

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A pendulum swings 80 cm on its first​ swing, 76 cm on its second​ swing, 72. 2 cm on its third​ swing, and 68. 59 cm on its fourth swing

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Using Algebraic expression we concluded, In practice, the angle of the pendulum may not be exactly equal to the calculated values due to factors such as air resistance, friction, and variations in the length of the pendulum.

What is Algebraic expression ?

A combination of variables and constants is an algebraic expression.

We can see that the pendulum's height drops with each swing if we make the assumption that each swing is measured from the same starting point.

Using a sequence is one technique to mathematically express this data. Assuming that n = 1, 2, 3, 4, let's define the sequence "a n" as the pendulum's height on the nth swing. Then, we could type:

a_1 = 80

a_2 = 76

a_3 = 72.2

a_4 = 68.59

Another way to represent this information is by using a formula that describes the height of the pendulum on each swing. One common formula for the height of a simple pendulum is:

[tex]h = L - L\times cos(\theta)[/tex]

where h is the height of the pendulum, L is the length of the pendulum, and θ is the angle that the pendulum swings from its resting position. Assuming that the length of the pendulum remains constant, we can use this formula to find the angle θ for each swing:

For the first swing, h = 80 cm, L = constant, so we can solve for θ:

[tex]80 = L - L\times cos(\theta)\\cos(\theta) = 1 - 80/L\\\theta = arccos(1 - 80/L)[/tex]

For the second swing, we have h = 76 cm, so we can use the same formula with h = 76 and solve for θ:

[tex]76 = L - L\times cos(\theta)\\cos(\theta) = 1 - 76/L\\\theta = arccos(1 - 76/L)[/tex]

Similarly, we can use the formula to find θ for the third and fourth swings:

For the third swing, h = 72.2 cm:

θ = arccos(1 - 72.2/L)

For the fourth swing, h = 68.59 cm:

θ = arccos(1 - 68.59/L)

Therefore, in practice, the angle of the pendulum may not be exactly equal to the calculated values due to factors such as air resistance, friction, and variations in the length of the pendulum.

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complete question -

help plsssss brother im dyinggg

Answers

Answer:

mAngle EFG = 139°

mAngle IFH = 49°

Step-by-step explanation:

First, just look at the top half of the diagram. Straight across D, F, G is a straight line. That's 180° We can write an equation with the two marked angles added up, equal to 180° to solve for x and to solve for those two angles. See image.

Then look for two crossing lines that makes a giant x (not a variable, on the image) That's EH and DG. The angles that are across from each other are called Vertical angles and they are equal to each other. See image.

Last, see the bottom part of the image where an angle is marked with a little tiny square. That means its a right angle and is 90°. We can subtract to find the second angle that we're being asked to find. See image.

Is a zero of this polynomial. If not, determine p(k). p(x)=3x^(4)-14x^(3)-9x^(2)+64x-28;k=2

Answers

Even though 2 is not a zero of the polynomial, p(k) = p(2) = 0.

No, 2 is not a zero of the polynomial p(x)=3x^(4)-14x^(3)-9x^(2)+64x-28. To determine p(k), we simply need to plug in the value of k into the polynomial and simplify.

So, p(k) = p(2) = 3(2)^(4) - 14(2)^(3) - 9(2)^(2) + 64(2) - 28

= 3(16) - 14(8) - 9(4) + 128 - 28

= 48 - 112 - 36 + 128 - 28

= 0

Therefore, p(k) = p(2) = 0.

So, even though 2 is not a zero of the polynomial, p(k) = p(2) = 0.

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how do you graph y=5x+2

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The graph of the linear equation, y = 5x + 2, is shown below in the attachment.

How to Graph a Linear Equation?

To graph the linear equation, y = 5x + 2, first plot the y-intercept at (0, 2) on the coordinate plane. Then, use the slope of 5 to move up 5 units and right 1 unit from the y-intercept to find another point on the line.

Continue this process to plot several more points, and then connect the points with a straight line to complete the graph of the equation. The resulting graph will be a straight line with a positive slope of 5 and y-intercept of 2.

See the attachment below for the graph.

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Rearrange the equation 4y - 8 = 12x + 4 into slope intercept form

Answers

Answer:

[tex]x = \frac{y}{3} - 1[/tex]

Step-by-step explanation:

[tex]1. \: 4y - 8 - 4 = 12x \\ 2. \: 4y - 12 = 12x \\ 3. \: \frac{4y - 12}{12} = x \\ 4. \: \frac{4(y - 3)}{12} = x \\ 5. \: \frac{y - 3}{3} = x \\ 6. \: - 1 + \frac{y}{3} = x \\ 7. \: \frac{y}{3} -1 = x \\ 8. \: x = \frac{y}{3}-1[/tex]

A pension fund manager decides to invest a total of at most $35 million in U.S. Treasury bonds paying 6% annual interest and in mutual funds paying 9% annual interest. He plans to invest at least $5 million in bonds and at least $20 million in mutual funds. Bonds have an initial fee of $100 per million dollars, while the fee for mutual funds is $200 per million. The fund manager is allowed to spend no more than $6000 on fees. How much should be invested in each to maximize annual interest? What is the maximum annual interest?
The amount that should be invested in Treasury bonds is $ 10 million and the amount that should be invested in mutual funds is $ 25 million.
The maximum annual interest is $

Answers

The fund manager should invest $7.5 million in bonds and $27.5 million in mutual funds to maximize annual interest, and the maximum annual interest is given as  $2.595 million.

How do we calculate?

To solve this, we

Let x = amount invested in bonds and

y = amount invested in mutual funds.

We then can deduce the following constraints:

x + y ≤ 35 (total investment is at most $35 million)

x ≥ 5 (at least $5 million is invested in bonds)

y ≥ 20 (at least $20 million is invested in mutual funds)

100x + 200y ≤ 6000 (the total fees paid which cant exceed $6000)

Maximizing  the annual interest, which is given by:

0.06x + 0.09y

We will  use the method of Lagrange multipliers, to solve the optimization problems.

Let L(x, y, z) be the Lagrangian:

and we have that L(x, y, z) = 0.06x + 0.09y + z(x + y - 35) + μ(x - 5) + ν(y - 20) + ρ(100x + 200y - 6000)

We will have to take partial derivatives of L with respect to x, y, and z, and set them to be equals zero.

0.06 + z + μ + 100ρ = 0

0.09 + z + ν + 200ρ = 0

x + y - 35 = 0

Simplifying these equations, we have:

x = 7.5, y = 27.5, λ = -0.06, μ = 0, ν = 0, ρ = -0.02

0.06(7.5) + 0.09(27.5) = $2.595 million is the annual interest.

So then, It has been found that the fund manager should invest $7.5 million in bonds and $27.5 million in mutual funds to maximize annual interest, which is  $2.595 million.

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Let A and B be events with P(A)=0.6, P(B)=0.4, and P(B|A)=0.4. Find P(A and B)

Answers

The probability of A and B, using conditional probability, is given as follows:

0.24 = 24%.

How to obtain the conditional probability?

The formula is:

[tex]P(B|A) = \frac{P(A \cap B)}{P(A)}[/tex]

In which the probabilities are listed and explained as follows:

P(B|A) is the probability of the event B happening, given that the event A happened.[tex]P(A \cap B)[/tex] is the probability of both the events A and B happening.P(A) is the probability of the event A happening.

To obtain the probability of A and B, the needed parameters are already given in the problem, and are as follows:

P(B|A) = 0.4.P(A) = 0.6.

Hence the probability of A and B is calculated as follows:

P(A and B) = P(A) x P(B|A)

P(A and B) = 0.6 x 0.4

P(A and B) = 0.24.

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Your answer is incorrect. Divide. (3+3i)/(-1-3i) Write your answer as a complex number in

Answers

(3+3i)/(-1-3i) = -3 + 9i

To divide the complex numbers (3+3i)/(-1-3i), follow these steps:

Step 1: Multiply both the numerator and the denominator by the conjugate of the denominator. The conjugate of -1-3i is -1+3i. (3+3i) / (-1-3i) * (-1+3i) / (-1+3i)

Step 2: Apply the distributive property (FOIL) in both the numerator and the denominator.

Numerator: (3 * -1) + (3 * 3i) + (3i * -1) + (3i * 3i) = -3 + 9i - 3i - 9i^2 Denominator: (-1 * -1) + (-1 * 3i) + (-3i * -1) + (-3i * 3i) = 1 - 3i + 3i + 9i^2

Step 3: Remember that i^2 = -1 and simplify both the numerator and the denominator.

Numerator: -3 + 9i - 3i + 9(-1) = -3 + 9i - 3i - 9 = -12 + 6i

Denominator: 1 - 3i + 3i - 9(-1) = 1 + 9 = 10

Step 4: Divide the real and imaginary parts by the simplified denominator.

Real part: -12/10 = -6/5

Imaginary part: 6i/10 = 3i/5

So, the division of the complex numbers (3+3i)/(-1-3i) results in the complex number -6/5 + 3i/5.

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A pan from the oven is sitting out to cool to room temperature. If the temperature difference between the pan and room temperature is currently 174°C and is decreasing by 5% every minute, how much above room temperature will the pan be in 21 minutes?

Answers

Answer: 59.26°

Step-by-step explanation:

Use the equation 174(0.95)^21

The 174 represents the temperature difference

The 21 represents the amount of time (in minutes) that has passed

To get 0.95, because the temperature is decreasing, you subtract

1-0.05=0.95 (0.05 and not 5 because you move the decimal over two places when working with percents)

That's the standard equation that you use when solving questions like these, and when you solve this equation you should get 59.26° (you need a calculator to solve it all at once)

Bob climbed down a ladder from his roof, while Roy climbed up another ladder next to Bob’s ladder. Each ladder had 30 rungs. Their friend Jill recorded the following information about Bob and Roy:

Bob went down two rungs every second.
Roy went up one rung every second.

At some point, Bob and Roy were at the same height. Which rung were they on?

Answers

Bob was on the top rung of his ladder (rung 30) and Roy was on the 15th rung of his ladder when they were at the same height.

What is Equation?

Two or more expressions with an Equal sign is called as Equation.

Let's assume that Bob started at the top of his ladder and Roy started at the bottom of his ladder.

If both ladders have 30 rungs, then they have a total height of 30 - 1 = 29 rungs.

If Bob went down two rungs every second and Roy went up one rung every second, then they were changing their height at a rate of -2

Let's use "t" to represent the time they had been climbing. Then, we can write an equation to represent the heights of Bob and Roy at this moment:

Bob's height = 30 - 2t

Roy's height = t

30 - 2t = t

Solving for "t", we get:

t = 15

This means that Bob and Roy were at the same height after 15 seconds of climbing.

Bob's height = 30 - 2t = 30 - 2(15) = 0

Roy's height = t = 15

Therefore, Bob was on the top rung of his ladder (rung 30) and Roy was on the 15th rung of his ladder when they were at the same height.

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a village contains contains n people a medical team inculates m people each day aginst yellow fever after foour days how many people still neeed to be inoculated​

Answers

n-4m people still need to be inoculated​. As the village contains n people and a medical team insulate m people each day against yellow fever.

It is given in the question that there is n number of people in the village.

Number of people inculcated each day against yellow fever = m

Now for finding how many people have been inculcated against yellow fever we will multiply by 4 the number of people who are being inculcated against yellow fever with m

So, in four days the number of people that had been inculcated is 4m

For finding how many people are left to be inculcated against yellow fever we will subtract from the total number of people in the village the  number of people who have been inoculated against yellow fever

Therefore, People left after four days to be inculcated is = n-4m

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PLEASE HELPP THIS IS DUE AN IN HOUR!!!

Answers

The equation for the function shown in the given table is y = 4x + 2 OR 4x - y = -2. The graph of the equation is attached below

Writing the equation of a function

From the question, we are to determine the equation for the function

From the the given table,

When x = 0, y = 2

and when x = 1, y = 6

We can determine the equation for the function by using the formula,

(y - y₁)/(x - x₁) = (y₂ - y₁)/(x₂ - x₁)

From above

x₁ = 0

y₁ = 2

x₂ = 1

y₂ = 6

Thus,

(y - 2)/(x - 0) = (6 - 2)/(1 - 0)

(y - 2)/x = 4/1

1 × (y - 2) = 4 × x

y - 2 = 4x

y = 4x + 2

OR

4x - y = -2

Hence, the equation is y = 4x + 2

The graph of the equation is attached below

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PLEASE HELP ME IF YOU DO YOUR A LIFESAVER!!! ଽ ૮( ⁰▱๋⁰ )ა

Julian is making barbecue sauce, 6 cups of white vinegar, 1/2 cup of honey, and 1/2 cup of maple syrup. How many quart jars can he fill? How many pint jars can he fill with any leftover sauce?

Answers

There are 2 quart jars can he fill.

There is 4 pint jar can he fill with any leftover sauce.

What is the fraction?

Fractions are numerical values that are a part of whole.

Julian is making barbecue sauce to the can. He uses 6 cups white vinegar, 1/2 cup honey, and 1/2 cup maple syrup.

We know that

1 quarts = 4 cups

Total number of cups is;

6 + (1/2) + (1/2) = 7

The total number of jars that he can fill is;

= total number of cups/4

=7/4

=1.75

There are 2 quart jars can he fill.

There are pint jars he can fill with any leftover sauce is;

1 quart = 2 pints

So, 2 quart = 2 × 2 = 4 pints.

There is 4 pints jar can he fill with any leftover sauce.

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please help me i have been sruggling for ages now

Answers

Answer:

13:00

Make a straight line from the vertex of the current Yuri line to 16:15

Step-by-step explanation:

Need help on this one pls

Answers

The expressions that are equivalent to 2x - 3y = 12 are B and D.

We can modify the equation algebraically and simplify 2x - 3y = 12 to find the expressions that are equal to that number:

2x - 3y = 12

2x - 12 = 3y (subtract 12 from both sides) (subtract 12 from both sides)

(2/3)x - 4 = y (divide both sides by 3) (divide both sides by 3)

As a result, the equation can also be written as y = (2/3)x – 4.

We can now determine which expressions have the same meaning as this form:

A. y = 4 - (2/3)x

This expression is simplified to give y = (-2/3)x + 4. This isn't the same as y = (2/3)x – 4.

B. y = (2/3)x - 4

This formula already equals y = (2/3)x - 4 in terms of value.

C. 2x - 3y = -12

2x - 3y + 12 = 0 is the result of adding 12 to both sides of the equation. y = (2/3)x - 4 is not the same form as this.

D. y = (3/2)x - 6

This expression can be simplified to y = (2/3)x - 4 by doing so. The formula for this is y = (2/3)x – 4.

Hence, the formulas B and D are the same as 2x - 3y = 12.

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The amount of money raised, R, varies jointly as the square root of hours worked, h, and the number of people working, p. If six people raise $72 when working 9 hours, how much would 10 people raise if they worked 16 hours?

Answers

A group of 10 people would raise a total value of  $160 if they worked 16 hours.

According to the given information, the amount of money raised, R, varies jointly as the square root of hours worked, h, and the number of people working, p. This means that R = k√h * p, where k is the constant of proportionality.

We are given that six people raise $72 when working 9 hours, so we can use this information to find the value of k:
72 = k√9 * 6
72 = k * 3 * 6
72 = 18k
k = 4

Now that we know the value of k, we can use it to find the amount of money that 10 people would raise if they worked 16 hours:
R = k√h * p
R = 4√16 * 10
R = 4 * 4 * 10
R = 160

Therefore, 10 people would raise $160 if they worked 16 hours.

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Write down these ratios 15 to 18 to 24 in their simplest forms

Answers

The ratios 15 to 18 to 24 in their simplest forms is 5:6:8.

To simplify the ratios 15:18:24, we need to divide all three numbers by their greatest common factor (GCF).

Find the GCF of 15, 18, and 24:

The factors of 15 are 1, 3, 5, and 15.

The factors of 18 are 1, 2, 3, 6, 9, and 18.

The factors of 24 are 1, 2, 3, 4, 6, 8, 12, and 24.

The largest factor that all three numbers share is 3, so the GCF is 3.

Divide all three numbers by 3:

15 ÷ 3 = 5

18 ÷ 3 = 6

24 ÷ 3 = 8

Write the simplified ratio:

The simplified ratio is 5:6:8.

Therefore, the simplified ratio of 15:18:24 is 5:6:8.

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question. Question 14 When simplifying the following expression, the first step would be to add eight and two. 5-8+2 True False

Answers

The given statement "When simplifying the expression 5-8+2, the first step would be to add eight and two" is false because of the PEMDAS rule.

According to the order of operations (PEMDAS), we need to perform any calculations inside parentheses first, then exponents, then multiplication and division from left to right, and finally addition and subtraction from left to right.

In this case, there are no parentheses or exponents, so we can move on to addition and subtraction from left to right.

The first step would actually be to subtract 8 from 5, giving us -3. Then we would add 2 to -3, giving us a final answer of -1.

Therefore, the correct answer is False.

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EASY 15 POINTS PLEASE HELP ME!!!!!!

Answers

Answer: B

Step-by-step explanation:

(7x^3-10x^2- 5)-(2x^3+7x^2-9)

= 5x^3 -3x^2-14

Let x be the smallest number which when added to 2000 makes the resulting number divisible by 12,16,18 and 21 the sum of the digits of x is

Answers

The sum of the digits of the number which when added to 2000 makes the resulting number divisible by 12,16,18 and 21 is 7

The smallest number which when added to 2000 makes the resulting number divisible by 12, 16, 18, and 21 is 312. The sum of the digits of x is 3 + 1 + 2 = 6.

To find the smallest number x that can be added to 2000 to make the resulting number divisible by 12, 16, 18, and 21, we need to find the least common multiple (LCM) of these numbers.

The LCM of 12, 16, 18, and 21 is 1008. Then we need to find the smallest multiple of 1008 that is greater than 2000. This is 1008 * 3 = 3024. The difference between 3024 and 2000 is 1024, so x = 1024.The sum of the digits of x is 1 + 0 + 2 + 4 = 7. Therefore, the sum of the digits of x is 7.

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4. Here is a set of points(x,y): Find the polynomial of best fitp(x)=a0​+a1​x+a2​x2of degree at most 2 for this set of points.

Answers

The polynomial of best fit for this set of points is p(x) = a0 + a1x + a2x^2, where a0, a1, and a2 are the coefficients that minimize the sum of the squared differences between the actual y-values and the predicted y-values of the polynomial.

The polynomial of best fit for a set of points is the polynomial that most closely fits the points. In order to find the polynomial of best fit, we need to use the method of least squares. This involves finding the coefficients a0, a1, and a2 that minimize the sum of the squared differences between the actual y-values and the predicted y-values of the polynomial.

1. First, we need to set up a system of equations using the given points:
a0 + a1(x1) + a2(x1)^2 = y1
a0 + a1(x2) + a2(x2)^2 = y2
a0 + a1(x3) + a2(x3)^2 = y3

2. Next, we need to solve this system of equations for a0, a1, and a2. This can be done using matrix operations or by using substitution and elimination.

3. Once we have found the values of a0, a1, and a2, we can plug them back into the equation for the polynomial of best fit:
p(x) = a0 + a1x + a2x^2

4. Finally, we can use this polynomial to make predictions for other x-values and compare them to the actual y-values to see how well the polynomial fits the data.

So, the polynomial of best fit for this set of points is p(x) = a0 + a1x + a2x^2, where a0, a1, and a2 are the coefficients that minimize the sum of the squared differences between the actual y-values and the predicted y-values of the polynomial.

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Question content area top
Part 1
In a​ race, 17 out of the 50 finished in less than 56 minutes. What percent of finished the race in less than 56 ​minutes? Write an equivalent fraction to find the percent

Answers

The percentage of  people who participated in the race finished in less than 56 minutes is 34%. This can also be written as the equivalent fraction 34/100

To find the percentage of people who finished the race in less than 56 minutes, we can use the following formula:

percentage = (part/whole) x 100%

where "part" is the number of people who finished in less than 56 minutes, and "whole" is the total number of people who participated in the race.

In this case, we know that 17 people finished in less than 56 minutes, and there were 50 people in total. So we can plug these values into the formula:

percentage = (17/50) x 100%

percentage = 34%

Therefore, 34% of the people who participated in the race finished in less than 56 minutes.

To write an equivalent fraction for this percentage, we can write:

34% = 34/100

This is an equivalent fraction because 34/100 can be simplified to 17/50

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