A certain quadratic function has a graph which contains the points (1, 7), (2, 16), and (3, 29). Using a quadratic regression (or a system of linear equations), find the equation for this function in standard form. As your answer, give the coefficient on x2 (that is, a).
Group of answer choices

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The commutative property of multiplication is as shown x × y = y × x .

The given values of x and y are:

x = a + bi and y = c + di

By the commutative property which states that it is a binary operation in which ab=ba whenever you change the order of the operands.

Therefore,

x = a + bi and y = c + di

Now, x × y = (a + bi) × (c + di)

 = ac + adi + bci + bdi²

= ac - bd + i(ad + bc)

Now, y × x = (c+ di) × (a + bi)

 = ac + bci + adi + bdi²

= ac - bd + i(ad + bc)

Therefore,  x × y = y × x

and when ab = ba then the property is known as commutative property.

Hence commutative property of multiplication is as shown above.

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The total surface area of the pyramid is  1,296 unit².

The lateral surface area (L.A) of the pyramid is 19.21 unit².

The volume of pyramid is 120 unit³.

The surface area of the pyramid is calculated as follows;

T.S.A = 2bh + b²

where;

In then diagram, we where given, base, b = 24 units, height = 15 units, then the surface area of the pyramid is calculated as follows;

T.S.A = 2 x 24 x 15  +  24²

T.S.A = 1,296 unit²

The lateral surface area is calculated as

L.A = √(b²/4 + h²)

L.A = √(24²/4 + 15²)

L.A = 19.21 unit²

The volume of pyramid is calculated as;

V = ¹/₃BH

V = ¹/₃ x 24 x 15

V = 120 unit³

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Answer:

x = 5

Step-by-step explanation:

10^5=

(10 x 10) x 10 x 10 x 10=

(100 x 10)x 10 x 10=

(1000 x 10) x 10=

(10,000 x 10) = 100,000

To solve the equation 10^x = 100,000, we need to isolate x on one side of the equation. We can do this by taking the logarithm of both sides of the equation with base 10:

log(10^x) = log(100,000)

Using the logarithmic property log(a^b) = b*log(a), we can simplify the left side of the equation:

x*log(10) = log(100,000)

Since log(10) = 1, we can simplify further:

x = log(100,000)

Using a calculator, we can evaluate the logarithm to get:

x = 5 + log(10)

x = 5 + 1

x = 6

Therefore, the solution to the equation 10^x = 100,000 is x = 6.

The requirements for a hypothesis test are satisfied.

To test the claim that the rate of polio is less for children given the Salk vaccine, we need to check if the requirements for a hypothesis test about two population proportions are met. The requirements are:

1. The samples are simple random samples and independent.
2. For each of the two groups, the sample size is at least 1000.

In this case, the study involved 401,974 children who were randomly assigned to two groups: the treatment group with 201,229 children and the placebo group with 200,745 children. This satisfies the first requirement, as the samples are simple random samples and independent. The sample size for both groups is also larger than 1000, meeting the second requirement.

Therefore, the requirements for a hypothesis test are satisfied, and we can proceed with testing the claim that the rate of polio is less for children given the Salk vaccine.

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Answer:

it is the circumference of a circle.

Answer:

Perimeter of a Circle= 2π r

Step-by-step explanation:

Answer:

see explanation

Step-by-step explanation:

the volume (V) of a triangular prism is calculated as

V = Ah ( A is the area of the triangular face and h the depth of the prism )

1

the area of the triangular face is

A = [tex]\frac{1}{2}[/tex] bh ( b is the base and h the perpendicular height )

here b = 7 and h = 5 , then

A = [tex]\frac{1}{2}[/tex] × 7 × 5 = 17.5 in²

the depth of the prism is 12 , so

V = 17.5 × 12 = 210 cm³

2

A = [tex]\frac{1}{2}[/tex] × 13 × 15 = 97.5 ft²

the depth of the prism is 2 , so

V = 97.5 × 2 = 195 ft³

3

A = [tex]\frac{1}{2}[/tex] × 11 × 4 = 22 yd²

the depth of the prism is 6 , so

V = 22 × 6 = 132 yd³

Answer:

Since each letter can be used more than once in any given password, we can use the multiplication rule to find the total number of possible passwords.

There are 6 positions in the password, and each position can be filled with any of the 6 letters (a, e, i, o, u, y). Therefore, the total number of possible passwords is:

6 x 6 x 6 x 6 x 6 x 6 = 46656

So there are 46,656 possible passwords that can be formed if the letters can be used more than once in any given password.

mark me brilliant

Answer:

To determine Martha's monthly pension, we need to use the formula provided by the Merrick Oaks School District for calculating the annual pension benefit:

Annual Pension Benefit = (Years of Service x Average of Last Three Annual Salaries) / 55

where 55 is the "pension factor" used by the district.

Using this formula, we can calculate Martha's annual pension benefit as follows:

Annual Pension Benefit = (18 x $100,000) / 55

Annual Pension Benefit = $32,727.27

Therefore, Martha's annual pension benefit is $32,727.27.

To calculate her monthly pension, we simply divide the annual pension benefit by 12:

Monthly Pension Benefit = $32,727.27 / 12

Monthly Pension Benefit ≈ $2,727.27

Therefore, Martha's monthly pension benefit would be approximately $2,727.27 if she retires after 18 years of service.

Step-by-step explanation:

Answer:

Step-by-step explanation:

These three graphs have a greater rate of change than the equation y=1/2 x+3.

What is equation?

An equation is an expression that states the equality of two things using mathematical symbols. It is a statement of balance between two elements, usually represented by numbers or variables. Equations are used to solve problems in many fields, including biology, chemistry, physics, engineering, and economics. Equations can be written in a variety of ways, such as linear, quadratic, and polynomial equations, and each type has a unique set of properties. Equations are useful for understanding the relationships between different variables and for predicting outcomes.

Graphs A, D, and F all have a greater rate of change than y=1/2 x+3.

Graph A has a slope of 2, which is double that of y=1/2 x+3 (1).

Graph D has a slope of 4, which is quadruple that of y=1/2 x+3 (1).

Finally, Graph F has a slope of 6, which is six times that of y=1/2 x+3 (1).

Therefore, these three graphs have a greater rate of change than the equation y=1/2 x+3.

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If baker evenly divides "30" pounds of cookie dough in 7 containers, then each container will contain approximately 4.29 pounds.

To find the amount of cookie dough that the baker will put into each container, we divide the total amount of dough by the number of containers.

The total amount of cookie dough is = 30pounds,

The total number of containers is = 7 containers.

Cookie dough in each container is = 30/7 containers = 4.2857... pounds,

≈ 4.29 pounds,

Therefore, the baker will put approximately 4.29 pounds of cookie dough into each of the 7 containers, if he evenly divides 30 pounds of dough among them.

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The probability that the publishing company produces more than 7500 books/magazines in a day is about 0.0062

To solve this problem, we need to use the standard normal distribution formula, which involves converting the given normal distribution into a standard normal distribution with a mean of 0 and a standard deviation of 1.

To convert a normal distribution with mean μ and standard deviation σ into a standard normal distribution, we use the following formula

z = (x - μ) / σ

where x is the value we want to convert, μ is the mean of the distribution, σ is the standard deviation of the distribution, and z is the corresponding value on the standard normal distribution.

Using this formula, we can convert the value of 7500 books/magazines per day to a z-score as follows

z = (7500 - 5500) / 800 = 2.5

We can then use a standard normal distribution table or a calculator to find the probability that the standard normal distribution produces a value greater than 2.5. This probability is approximately 0.006

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Answer:

[tex](x - 9)(x - 1)[/tex]

Step-by-step explanation:

We can factor the trinomial using the rule:

IF [tex]x^2 + cx + d = (x + a)(x + b)[/tex],

THEN [tex]a + b = c[/tex] and [tex]a \cdot b = d[/tex].

We know that -9 and -1 add to -10. They also multiply to 9.

Therefore, we can factor [tex]x^2 - 10x + 9[/tex] as:

[tex]\boxed{(x - 9)(x - 1)}[/tex]

The factors of the given trinomial are (x-9)(x-1).

Trinomial is a polynomial having 3 terms. At least one variable and one operation (addition, subtraction, multiplication, division) must be present in an algebraic expression.

Given that, a trinomial x² - 10x + 9, we need to find the factors,

So,

x² - 10x + 9

= x² - 9x - x + 9

= x(x-9) -1(x-9)

= (x-9)(x-1)

Hence, the factors of the given trinomial are (x-9)(x-1).

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When testing the null hypothesis with an alpha value of 0.05, the critical value will be smaller than if you were testing the alpha value of 0.01.

This is because the alpha value represents the maximum level of probability that we are willing to accept for making a Type I error (rejecting the null hypothesis when it is actually true).

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On solving the query we can say that This stage consists just of arithmetic multiplication and does not include any specific properties of numbers.

Mathematics is concerned with numbers and their variations, equations and related structures, shapes and their places, and possible placements for them. The relationship between a collection of inputs, each of which has an associated output, is referred to as a "function". An relationship between inputs and outputs, where each input yields a single, distinct output, is called a function. Each function has a domain and a codomain, often known as a scope. The letter f is frequently used to represent functions (x). X is the input. The four main types of functions that are offered are on functions, one-to-one functions, many-to-one functions, within functions, and on functions.

The expression's step is justified by the distributive property. The distributive property of multiplication over addition asserts that for any three integers a, b, and c, a(b + c) = ab + ac. This is the particular property we are employing.

Here are the facts:

2(5 + 17) = 2(5) + 2(17)

which is equivalent to:

2(5 • 17) = (2 • 5) 17

The distributive principle of multiplication over addition is used in this phase.

Then, we further simplify by multiplying 2 by 5 to get 10, which results in:

(2 • 5) 17 = 10 • 17 = 170.

This stage consists just of arithmetic multiplication and does not include any specific properties of numbers.

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On solving the query we can say that This stage consists just of arithmetic multiplication and does not include any specific properties of numbers.

What is function?

Mathematics is concerned with numbers and their variations, equations and related structures, shapes and their places, and possible placements for them. The relationship between a collection of inputs, each of which has an associated output, is referred to as a "function". An relationship between inputs and outputs, where each input yields a single, distinct output, is called a function. Each function has a domain and a codomain, often known as a scope. The letter f is frequently used to represent functions (x). X is the input. The four main types of functions that are offered are on functions, one-to-one functions, many-to-one functions, within functions, and on functions.

The expression's step is justified by the distributive property. The distributive property of multiplication over addition asserts that for any three integers a, b, and c, a(b + c) = ab + ac. This is the particular property we are employing.

Here are the facts:

2(5+17)=2(5) + 2(17)

which is equivalent to:

2(5+17)= 44

The distributive principle of multiplication over addition is used in this phase. Then, we further simplify by multiplying 2 by 5 to

get 10, which results in:

(2×5) 17 = 10× 17 = 170.

This stage consists just of arithmetic multiplication and does not include any specific properties of numbers.

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The probability of a student having at least one sibling, based on the survey results is 0.8.

Daniel surveyed 120 students at his school and found that 96 of them have at least one sibling. This means that the probability of a student having at least one sibling, based on the survey results, is 96/120 or 0.8.

There are 425 students at Daniel's school, so if we multiply this number by the probability of having at least one sibling (0.8), we can estimate that approximately 340 students at the school have at least one sibling.

To estimate the number of students at Daniel's school who have at least one sibling, we can use this probability to make a prediction.

If we assume that the probability of a student having at least one sibling is the same for all students at the school, then we can apply this probability to the total number of students.

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The first 3 common denominators of 5/24 and 5/8 are the same as the first 3 lowest multiples of 24, which are;  24, 48, and 72

The lowest common multiples of two numbers are the smallest multiples that are common to two numbers.

The first 3 common denominators of 5/24 and 5/8 can be found from the first three lowest common multiples of 24 and 8 as follows;

The first three lowest multiples of 24 are 24, 48, and 72

The first three lowest multiples of 8 are 8, 16, and 24

Therefore, the first three common denominators of 5/24 and 5/8 are 24, 48, and 72

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Answer: Each piece of poster board with be 0.78 cents each.

Step-by-step explanation: In order to find x, you need to figure out why 35 pieces of poster boards came up to a total of $27.30.

You will divide in this situation. If you divide $27.30 by 35 poster boards, you should get 0.78 as the result, representing the cost of each poster board.

It is proved that a multiple of a pythagorean triple is also a pythagorean triple

When ABC is a triangle with AC as the hypotenuse and angle B with 90 degrees then we have:

[tex]|AC|^2 = |AB|^2 + |BC|^2[/tex]

where |AB| = length of line segment AB. (AB and BC are rest of the two sides of that triangle ABC, AC being the hypotenuse).

WE can see few pythagorean triple as

[tex]{3}^{2} + {4}^{2} = {5}^{2} {(3 \times 2)}^{2} + {(4 \times 2)}^{2} = {(5 \times 2)}^{2} {6}^{2} + {8}^{2} = {10}^{2}[/tex]

3-4-5 is a Pythagorean triple.

Now Multiplying each of these numbers by 2, we obtain 6-8-10,

This is a Pythagorean triple.

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Answer:

Yes, this definition is valid. A regular polygon is a polygon where all sides are equal in length and all angles between the sides are also equal. Therefore, stating that a regular polygon has all sides of the same length is an accurate description of the defining characteristic of such a shape.

Answer:

0.14%

Step-by-step explanation:

Answer: 65.25 u²

Step-by-step explanation:

I'm going to flip the triangle so c is at the bottom.  i draw a height from <C down to c so that I create a right triangle and I will use trig to find h

they gave me b (hypotenuse) and <A and i want that new h we drew which is opposite <A

sin A = b/h

sin 65 = 18/h    cross multipy to bring h up

h=18/sin65

h=16.31

Area= 1/2 b h     b=base=c=8

=1/2 (8)(16.31)

=65.25 u²

It makes sense to begin with the y-intercept when sketching the graph of y = mx + b because the y-intercept is the point at which the line intersects the y-axis, where x = 0. This point gives us a starting point for the graph and allows us to plot a single point before determining the slope of the line. Once we have the y-intercept, we can use the slope to find additional points on the line, and then connect the points to create the graph of the line.

Answer:

Step-by-step explanation:

When graphing a linear equation of the form y = mx + b, where m is the slope and b is the y-intercept, it makes sense to begin with the y-intercept instead of the slope because the y-intercept gives us a point on the y-axis where the line crosses it.

In the case of the equation y = X + 2, the y-intercept is the point (0,2) on the y-axis, which is a point we can easily plot on the graph. Once we have plotted the y-intercept, we can then use the slope, which is 1 in this case, to find another point on the line by moving one unit to the right along the x-axis and one unit up along the y-axis. We can then draw a straight line through these two points to complete the graph of the line.

Starting with the y-intercept also makes sense because it gives us a sense of the vertical position of the line before we consider its slope. This can be helpful in cases where the y-intercept is a large or small number, as it can affect the scale of the graph and make it easier to read. Additionally, starting with the y-intercept can help us to quickly identify whether the line intersects the y-axis or not, and at what point.

The exponential equation that represents the function is 3x².

The finite difference between two consecutive values of f(x) is given by:

Δf(x) = f(x+1) - f(x)

Δf(-6) = f(-5) - f(-6) = 75 - 108 = -33

Δf(-5) = f(-4) - f(-5) = 48 - 75 = -27

Δf(-4) = f(-3) - f(-4) = 27 - 48 = -21

Δf(-3) = f(-2) - f(-3) = 12 - 27 = -15

The second finite differences are:

Δ²f(-6) = Δf(-5) - Δf(-6) = 6

Δ²f(-5) = Δf(-4) - Δf(-5) = 6

Δ²f(-4) = Δf(-3) - Δf(-4) = 6

Since the second finite differences are constant, the function is a quadratic polynomial of the form;

f(x) = ax² + bx + c

f(-6) = 108 = 36a - 6b + c

f(-5) = 75 = 25a - 5b + c

f(-4) = 48 = 16a - 4b + c

The final equation becomes;

36a - 6b + c = 108 ---- (1)

25a - 5b + c = 75 ------ (2)

16a - 4b + c = 48 -------- (3)

solve the equation, using crammers rule,

a = 3, b = 0, c = 0

f(x) = 3x²

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The probability that a randomly selected marble is purple or small is: 0.5254

The total number of big marbles = 34 marbles

The total number of small marbles = 25 marbles

The total number of red marbles = 22 marbles

The total number of Green Marbles = 11 marbles

The total number of purple marbles = 16 marbles

The total number of blue marbles = 10 marbles

Total number of all marbles = 59 marbles

Thus, the probability that a randomly selected marble is purple or small is:

P(purple or small) = (16/59) + (25/59)

= 31/59 = 0.5254

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Answer & Explanation

Well when we say “ radical form “ just means putting it in square root

“ [tex]\sqrt{}[/tex] “

Square root of 9 is a whole number  since it is not a decimal then it can be multiplied by itself to get the original number. The actual value of square root of 9 is 3. “ √9 = ±3 “

If we square root +3 or -3, the resulting value will be equal to 9. Shown:

[tex](+3)^{2} = 9[/tex]

[tex](-3)^2 = 9[/tex]

Does not matter any order.

The probability of odds of getting two matching pairs of one type of card, and three matching pairs of another in a hand of five cards are extremely low.

To calculate the odds, we can first calculate the number of ways to get two matching pairs of one type of card, which is (13 choose 2) × (4 choose 2)² since we need to choose 2 ranks out of 13, and then 2 suits out of 4 for each of those ranks. This equals 78,624.

Next, we calculate the number of ways to get three matching pairs of another type of card, which is (11 choose 3) × (4 choose 2)³, since we need to choose 3 ranks out of the remaining 11, and then 2 suits out of 4 for each of those ranks. This equals 15,024. Finally, we multiply the two probabilities to get the overall odds: (78,624 × 15,024) / (52 choose 5) = 0.000016.

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The sum of horizontal forces acting on a body in equilibrium must be zero.

(a) 12 N + 24 N + 48 N = 84 N ≠ 0, so not in equilibrium.

(b) 50 N + 75 N + 150 N = 275 N ≠ 0, so not in equilibrium.

(c) 45 N + 90 N + 450 N = 585 N ≠ 0, so not in equilibrium.

(d) 35 N + 35 N + 35 N = 105 N = 0, so this set of forces can keep a body in equilibrium.

Therefore, the correct answer is (d) 35 N, 35 N, and 35 N.

Answer:

20/100=0.20

0.20$(58) +$58

option A

I'm rather busy right now but I'll try my best to help you out

1. Radius is 6 because 12/2 = 6

2. Formula is πr^2

im really sry i wasnt able to help out alot but i hope you can understand it a little better