can someone help me with this?? it’s properties of quadratic relations

After the estimation, the product of 306 and 673 by first rounding each number to the nearest hundred is 2100.

To round off the number to the nearest hundred, we have to check the first two digits of the number and if the number is below 50 then we round off it to the same hundred position. Similarly, if the number is above 50 then we round off it to the next hundred places.

Given the numbers are 306 and 673,  

306 has 06 as the first two digits and it is below 50 then after rounding off it is rounded off to 300.

673 has 73 as the first two digits and it is after 50 then after rounding off it is rounded off to 700.

Thus, after the estimation, the product can be calculated as:

300 * 700 = 2100

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Answer:

It's B

Step-by-step explanation:

I hope that helped you and im not going to educate ylu at this point because people just use this as a cheating app now so

The inequality is 0.15x ≤ 5.00. If copies of a flyer at a store that charges $0.15 per copy, the maximum number of copies you can afford to make is 33.

The inequality that represents the number of copies you can make is:

0.15x ≤ 5.00

Here, x represents the number of copies you can make, and 0.15 is the cost per copy in dollars. The inequality states that the total cost of copies must be less than or equal to the amount of money you have.

To find the maximum number of copies you can afford to make, we need to solve for x:

0.15x ≤ 5.00

x ≤ 5.00/0.15

x ≤ 33.33

Since you cannot make a fraction of a copy, the actual number of copies you can make is 33 or less.

In conclusion, the inequality that represents the number of copies you can make is 0.15x ≤ 5.00, and the maximum number of copies you can afford to make is 33.

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You have $5.00 and you need to make copies of a flyer at a store that charges $0.15 per copy. Find the inequality that represents the number of copies you can make. Use x as the variable. What is the maximum number of copies you can afford to make?

Answer: 10

Step-by-step explanation:

6 1/2 + 3 1/2
13/2 + 7/2
20/2
= 10

Step 1: Add the whole numbers

6 + 3 = 9

Step 2: Add the fractions

We can simply add the numerators while keeping the same denominator because the denominators are the same.

1/2 + 1/2 = 2/2 = 1

Step 3: Combine them

The answer is 10 since 9 and 1 are whole numbers. So we simply add them.

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Overall, we add the whole numbers first, then add the fractions. If the denominators are identical, we add the numerators and keep the same denominator. The solution will be displayed as a mixed number/fraction or a whole number. Since there was no fraction at the end, in this case, we simply added the whole numbers.

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The top-written number in a fraction is the numerator. It shows how many parts of the whole you are talking about.

For example, the numerator of the fraction 3/5 is 3, which means there are 3 parts out of a total of 5 equal parts.

The number of parts taken out of the whole is therefore represented by the numerator.

The number written at the bottom of a fraction works as the denominator. It gives the number of equally sized parts of the whole.

As an example, the denominator of the fraction 2/5 is 5, which shows that the entire is divided into four equal parts.

The total number of equal parts that make up the whole is represented by the denominator.

Mixing a full number and a fraction creates a mixed number. The whole number comes first, then a space, and then the fraction is written.

For example, the mixed number 2 1/2 is a whole number and a fraction, with 2 being the whole number. The word "and" between a mixed number's whole and fraction might be removed or included.

A proper fraction, or one that is less than one whole, must make up the fractional part of the mixed number. Quantities that are not whole numbers but instead consist of several whole numbers are represented by mixed numbers.

A number that represents a finished item or thing is said to be a whole number. It is a number that is neither a decimal nor a fraction.

All natural numbers and zero are considered whole numbers. These are positive integers without decimals, fractions, or negative numbers. A few examples of entire numbers include 1, 2, 3, and so forth.

For counting items that cannot be divided into smaller portions, whole numbers are used.

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Picking a black card has a 1/2 chance of probability both ways.

The probability of an occurrence is a figure that represents how likely it is that the event will take place. In terms of percentage notation, it is expressed as a number between 0 and 1, or between 0% and 100%. The higher the likelihood, the more likely it is that the event will take place.

Hearts, clubs, spades, and diamonds make up the four suites of a normal deck of cards. 13 cards total—the ace, 2, 3, 4, 5, 6, 7, 8, 9, 10, jack, queen, and king—make up each suit. There are two jokers, bringing the total number of cards in the deck to 54.

In a deck, there are 26 black cards. Picking any of these 26 cards had a probability of p=26/52 = 1/2 since picking any card has the same probability (1/52).

1-p=1/2 goes against probability.

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The surface area of the paper towel is determined as 212.1 in².

The surface area of the cylinder is calculated as follows;

S.A = 2πr (r + h )

where;

The radius of the cylinder = 5 in /2 = 2.5 in

The total surface area of the cylinder is calculated as follows;

S.A = 2πr (r + h )

S.A = 2π x 2.5 in ( 2.5 in + 11 in )

S.A = 212.1 in²

Thus, the surface area of the cylinder is equal to surface area of the paper towel.

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Answer:

The correct answer is d.) 21/36.If we assume a fair six-sided number cube, there are a total of 36 possible outcomes. Out of these, the favorable outcomes for X being at least 7 are 21, 22, 23, 24, 25, and 26 (six outcomes). Therefore, the probability of X being at least 7 is 6/36, which can be simplified to 1/6, or approximately 0.1667.

Step-by-step explanation:

The zeroes of polynomial are 43/5 and -3/4.

We have,

4 (3x-2)² -3 (3x-2) (x+5) - 7(x+5)²

simplifying the above expression we get

4 (9x² + 4 -12x ) -3 (3x² + 15x - 2x - 10) - 7(x² + 25 + 10x)

= 36x² - 48x + 16 - 9x² -39x + 30 - 7x² - 175 - 70x

= 20x² -157x -129

Now, solving the quadratic equation we get

x = 43/5 and x= -3/4

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Range of center should be used to determine which location typically has the cooler temperature.

Now, We know that;

Range is measures the difference between the highest and lowest values in a dataset, providing a clear measure of variability for both sets of data. It is not affected by skewness or symmetry, which makes it a useful measure of variability for comparing the temperature consistency between Desert Landing and Flower Town.

A histogram is a graphical representation of the distribution of a dataset. It is a way to display the frequency of different values or ranges of values in a dataset.

The x-axis of a histogram typically represents the values or ranges of values, and the y-axis represents the frequency or count of those values.

The data is divided into bins, and each bin is represented by a bar whose height corresponds to the number of observations in that bin. Histograms are used to visualize the distribution of data, detect outliers, and identify patterns or trends in the data.

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Answer: Here i will explain it to you and give an example

Here's an example: let's say you have three positive integers, 5, 12, and 13. To check if they form a Pythagorean triple, you can compute 5^2 + 12^2 = 25 + 144 = 169, which is equal to 13^2. Since the equation holds, the three numbers 5, 12, and 13 form a Pythagorean triple.

In fact, this is a well-known Pythagorean triple, because it is one of the smallest triples, and it is frequently used in geometry and mathematics. The triple (5, 12, 13) satisfies the Pythagorean theorem and represents the lengths of the sides of a right triangle.

Step-by-step explanation:  Three positive numbers form a Pythagorean triple if they satisfy the Pythagorean theorem, which states that in a right triangle, the square of the length of the hypotenuse (the side opposite the right angle) is equal to the sum of the squares of the lengths of the other two sides. In other words, if a, b, and c are the lengths of the sides of a triangle such that c is the length of the hypotenuse (the longest side) and a and b are the lengths of the other two sides, then the Pythagorean theorem states that a^2 + b^2 = c^2.

Therefore, to determine if three positive numbers form a Pythagorean triple, you need to check if the sum of the squares of the two smaller numbers is equal to the square of the largest number. For example, if you have three numbers 3, 4, and 5, you can check if they form a Pythagorean triple by computing 3^2 + 4^2 = 9 + 16 = 25, which is equal to 5^2. Since the equation holds, the numbers 3, 4, and 5 form a Pythagorean triple.

Hope this helped. Have a great day.

The value of the unknown angle is 40⁰

A chord of a circle is a straight line segment whose endpoints both lie on a circular arc. If a chord were to be extended infinitely on both directions into a line, the object is a secant line. More generally, a chord is a line segment joining two points on any curve

In geometry, a circular segment (symbol:  also known as a disk segment, is a region of a disk which is "cut off" from the rest of the disk by a secant or a chord.

Circle theorems are properties that show relationships between angles within the geometry of a circle. We can use these theorems along with prior knowledge of other angle properties to calculate missing angles, without the use of a protractor. This has very useful applications within design and engineering.

Angles in the same segment are equal

The two angles marked are seen to be in the same segment and as such they are equal angles

The value of each of the angles is 40⁰

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a. With a significance level of 0.05, we reject the null hypothesis that the population proportions are equal and conclude that there is evidence to suggest that the proportion of ASU students who know how to ski is different from the proportion of NAU students who know how to ski.

b. With a significance level of 0.01, we also reject the null hypothesis and conclude that there is evidence to suggest that the population proportions are different. The p-value of 0.045 is less than the significance level of 0.01, indicating strong evidence against the null hypothesis.

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The length 20 inches of the icicle in feet is 1 2/3 feet

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

Jessica found an icicle 20 inches long.

This means that

Length = 20 inches

To convert inches to feet, we divide the length value by 12

So, we have

Length = 20/12 feet

Evaluate

Length = 1 2/3 feet

Hence, the length is 1 2/3 feet

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1. The instantaneous rate of change in the amount after 2 years is [tex]$1,605.64[/tex] per year

2. The instantaneous rate of change in the amount at the time the amount is equal to [tex]$14,101[/tex] is approximately $994.78 per year

[tex]A = P[/tex]× [tex]e^{rt}[/tex]

where P is the principal (initial investment), r is the annual interest rate as a decimal, and t is the time in years.

For this problem, we have P = $10,000, r = 0.067 (6.7% as a decimal), and we want to find the instantaneous rate of change in the amount after 2 years, so t = 2.

Part 1:

To find the instantaneous rate of change, we need to take the derivative of the function A(t) with respect to t:

[tex]dA/dt = Pre^{rt}[/tex]

At[tex]t = 2[/tex], we have:

[tex]A(2) = $10,000e^{0.0672}[/tex]

[tex]= $11,868.94[/tex]

[tex]dA/dt = $10,0000.067e^{0.067}[/tex]×[tex]2)[/tex]

[tex]= $1,605.64[/tex]

So the instantaneous rate of change in the amount after 2 years is $1,605.64 per year

Part 2:

To find the time at which the amount in the account is $14,101, we need to solve the equation A = $14,101 for t:

[tex]$14,101[/tex][tex]= $10,000[/tex] × [tex]e^{0.067t}[/tex]

Dividing both sides by $10,000:

[tex]1.4101 = e^{0.067t}[/tex]

Taking the natural logarithm of both sides:

[tex]ln(1.4101) = 0.067t[/tex]

Solving for t:

[tex]t = ln(1.4101)/0.067[/tex]

≈ [tex]3.5 years[/tex]

So the time at which the amount in the account is $14,101 is approximately 3.5 years.

To find the instantaneous rate of change at this time, we need to evaluate the derivative at t = 3.5:

[tex]dA/dt = $10,0000.067e^{0.067}[/tex]×[tex]3.5)[/tex]

≈ [tex]$994.78[/tex]

So the instantaneous rate of change in the amount at the time the amount is equal to $14,101 is approximately $994.78 per year

Compound interest is the interest you earn on interest. This can be illustrated by using basic math: if you have $100 and it earns 5% interest each year, you'll have $105 at the end of the first year. At the end of the second year, you'll have $110.25

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The function f(x) = rx mapping S2 to S2(r) is one-to-one, onto, but not an isometry if r ≠ 1.

To prove that the function f: S2 → S2(r) defined by f(x) = rx is one-to-one, onto, and not an isometry if r ≠ 1, we'll consider the following:

1. One-to-one: For f to be one-to-one, for every distinct pair of points x, y ∈ S2, we must have f(x) ≠ f(y). Suppose x ≠ y, then rx ≠ ry since r > 0. This shows that f is one-to-one.

2. Onto: To show that f is onto, we must show that for every point y ∈ S2(r), there exists a point x ∈ S2 such that f(x) = y. For y ∈ S2(r), we can find x = (1/r)y, which satisfies |x| = 1, so x ∈ S2. Then f(x) = r(1/r)y = y, proving that f is onto.

3. Not an isometry if r ≠ 1: An isometry is a function that preserves distances between points. If f were an isometry, we'd have |f(x) - f(y)| = |x - y| for all x, y ∈ S2. Consider x, y ∈ S2 with |x - y| = d. Then, |f(x) - f(y)| = |rx - ry| = r|x - y| = rd. If r ≠ 1, rd ≠ d, so f does not preserve distances, and therefore f is not an isometry.

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To answer your question, let's consider the set U = {2, 4, 5, 6, 7, 3, 5}, and let W be the set of all x in R³ such that U * x = 0. The theorem in Chapter 4 that can be used to show that W is a subspace of R³ is the "Subspace Theorem."

The Subspace Theorem states that a subset W of a vector space V is a subspace if it satisfies the following three conditions:
1. The zero vector of V is in W.
2. If u and v are in W, then their sum (u+v) is in W.
3. If u is in W and c is a scalar, then the product (cu) is in W.

To describe W in geometric language, W would be a plane or a line that passes through the origin in R³, which is orthogonal (perpendicular) to the given vector U. This is because all the vectors x in W have a dot product of 0 with U, indicating that they are orthogonal to U.

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[tex]\textit{volume of a cylinder}\\\\ V=\pi r^2 h~~ \begin{cases} r=radius\\ h=height\\[-0.5em] \hrulefill\\ r=2.5\\ V=37.5\pi \end{cases}\implies 37.5\pi =\pi (2.5)^2 h \\\\\\ \cfrac{37.5\pi }{2.5^2 \pi }=h\implies \cfrac{37.5}{6.25}=h\implies 6=h[/tex]

To find the projection bp of the vector of the right hand sides to the column space of the coefficient matrix, we can use the formula:

bp = A(A^T A)^-1 A^T b

where A is the coefficient matrix and b is the vector of the right hand sides.


To find the projection of the vector b onto the column space of the coefficient matrix A, you need to perform the following steps:

1. Calculate the orthogonal projection matrix P using the formula P = A(A^T * A)^-1 * A^T, where A^T is the transpose of A, and (A^T * A)^-1 is the inverse of the product of A^T and A.

2. Multiply the projection matrix P with the vector b to obtain the projection vector bp: bp = P * b.

In summary, to find the projection bp of the vector of the right-hand sides to the column space of the coefficient matrix, calculate the orthogonal projection matrix P and then multiply it with the vector b.

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Hi there! To answer your question, we'll consider the terms: ordinary fair die, rolled 4 consecutive times, and probability.

An ordinary fair die has 6 sides, each with an equal probability of 1/6. Since you're rolling the die 4 consecutive times and want all different numbers, we can calculate the probability as follows:

For the first roll, any of the 6 numbers can appear, so the probability is 6/6.
For the second roll, you have 5 remaining numbers, so the probability is 5/6.
For the third roll, there are 4 remaining numbers, so the probability is 4/6.
Finally, for the fourth roll, there are 3 remaining numbers, so the probability is 3/6.

Now, multiply the probabilities together to find the overall probability of observing all different numbers:

(6/6) × (5/6) × (4/6) × (3/6) = 1 × 5/6 × 2/3 × 1/2 = 5/36

So, the probability of observing all different numbers in 4 consecutive rolls of an ordinary fair die is 5/36.

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The answer is C. 2 km.

To find the distance after the policeman spots the thief where he will catch him, we'll need to use the terms distance, speed, and time.

Given:
- Distance between thief and policeman: 500 m
- Speed of thief: 8 km/hr
- Speed of policeman: 10 km/hr

Step 1: Convert the distance to kilometers (since the speeds are in km/hr).
500 m = 0.5 km

Step 2: Calculate the relative speed of the policeman to the thief.
Relative speed = Speed of policeman - Speed of thief = 10 km/hr - 8 km/hr = 2 km/hr

Step 3: Calculate the time it will take for the policeman to catch the thief.
Time = Distance / Relative speed = 0.5 km / 2 km/hr = 0.25 hr

Step 4: Calculate the distance traveled by the policeman in that time.
Distance traveled = Speed of policeman × Time = 10 km/hr × 0.25 hr = 2.5 km

Step 5: Subtract the initial distance between them to find the distance after the policeman spots the thief.
Distance after spotting = Distance traveled - Initial distance = 2.5 km - 0.5 km = 2 km

So, the policeman will catch the thief at a distance of 2 km after he spots him. The answer is C. 2 km.

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π^2/6 = Σn=1^∞ 1/n^2

This completes the proof.

To calculate the Fourier series of the function f(x) = 1-x^2, we first extend it to a periodic function on (-∞, ∞) with period 2 by defining it as follows:

f(x) = 1 - x^2, -1 < x ≤ 1

f(x+2) = f(x), for all x in R

Since f is an even function, its Fourier series only contains cosine terms:

f(x) = a0/2 + Σn=1^∞ an cos(nπx/2), -∞ < x < ∞

where an = (2/π) ∫[-1,1] f(x) cos(nπx/2) dx.

To find the Fourier coefficients an, we first calculate a0:

a0 = (2/π) ∫[-1,1] f(x) dx

= (2/π) ∫[-1,1] (1 - x^2) dx

= 4/π

Next, we calculate an for n > 0:

an = (2/π) ∫[-1,1] f(x) cos(nπx/2) dx

= (2/π) ∫[-1,1] (1 - x^2) cos(nπx/2) dx

= 8/[n^3π^3 (1 - (-1)^n)] for n > 0

Therefore, the Fourier series of f is:

f(x) = 2/π - (8/π) Σn=1^∞ [1/((nπ)^2 (1 - (-1)^n))] cos(nπx/2), -∞ < x < ∞

Now, we can use this series to prove that:

Σn=1^∞ 1/n^2 = π^2/6

To do this, we start with the identity:

f(x) = (2/π) Σn=1^∞ [1/((nπ)^2 (1 - (-1)^n))] cos(nπx/2)

Integrating both sides over [-1,1], we get:

2/π ∫[-1,1] f(x) dx = (2/π) Σn=1^∞ [1/((nπ)^2 (1 - (-1)^n))] ∫[-1,1] cos(nπx/2) dx

The integral on the right-hand side is equal to 0 for odd values of n and 2 for even values of n. Therefore, we can simplify the equation as:

1 = (4/π) Σn=1^∞ [1/((nπ)^2)]

Multiplying both sides by (π^2/6), we get:

π^2/6 = Σn=1^∞ 1/n^2

This completes the proof.

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G and H in terms of x and y is given by H = [tex]B^d[/tex](a, 1) and G = [tex]B^{d_2}(0, 1)[/tex] , the  set S of all possible values of y is x+y≥0 the Cartesian coordinates systems is S = [-7/5, -3/5].

Choosing a point O of the line (the origin), a unit of length, and an orientation for the line are all steps in choosing a Cartesian coordinate system for a one-dimensional space, or for a straight line. The line "is oriented" (or "points") from the negative half towards the positive half when an orientation determines which of the two half-lines given by O is the positive half and which is the negative half. Then, depending on which half-line contains P, the distance between each point P on the line and O can be specified.

a) O = (0, 0) a = (2, -1)∈R²

G = [tex]B^{d_2}(0, 1)[/tex]

D = [tex]\sqrt{x^2+y^2}[/tex] < 1

So this is a circle until center at (0, 0) and no point on

[tex]x^2+y^2[/tex] and every point inside it

H = [tex]B^d[/tex](a, 1) = {v=(x,y)∈R²: d(a, v)≤1}

b) x-2 + y=1 ≤ 1

x-y ≤4

For, x-2≤0, y+1≥0  we get,

2-x+y+1≤1 y-x ≤-2

For, x-2≤0,   y+1≤0,   2-x-y-1≤1

x+y≥0

c) Therefore,

d(a, (13/5, y) ≤ 1

(13/5 -2) + (y +1) ≤ 1

S = [-7/5, -3/5].

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a) The approximate probability that you will get the sides numbered either "5" or "6" at least 150 times (inclusive) when a fair die is thrown 500 times is  0.9842.

(b)  The maximum likelihood estimate of the parameter is 0.0642.

(a) Let X be the number of times the kick the bucket lands on either 5 or 6 in 500 tosses.

Since each toss is free and incorporates a 1/3 probability of landing on 5 or 6, we will demonstrate X as a binomial dispersion with n = 500 and p = 2/6 = 1/3. We need to discover P(X ≥ 150), which we will surmise utilizing the typical dissemination with cruel np = 500(1/3) = 166.67 and change np(1-p) = 111.11.

Utilizing coherence adjustment, we get:

P(X ≥ 150) ≈ P(Z ≥ (149.5 - 166.67)/√(111.11)) = P(Z ≥ -2.15) = 0.9842

Subsequently, the inexact likelihood that we are going get the sides numbered either 5 or 6 at the slightest 150 times in 500 tosses is 0.9842.

(b) The probability work for a test of n perceptions from an exponential conveyance with parameter λ is:

L(λ) = λ[tex]^n[/tex] [tex]exp[/tex](-λΣ(xi))

Taking the subordinate with regard to λ and setting it to rise to zero, we get:

d/dλ [L(λ)] = n/λ - Σ(xi) =

Tackling for λ, we get:

λ = n/Σ(xi)

Substituting n = 7 and the given values for xi, we get:

λ = 7/(17+14+27+8+12+19+12) = 7/109 = 0.0642 (adjusted to four decimal places)

Hence, the greatest probability appraisal of the parameter λ is 0.0642.

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The probability that the chosen student eats fish or eggs is 12/26 = 0.4615 or approximately 46.15%

To answer your question, let's first organize the information given:

Total vegetarians: 26
Eat both fish and eggs: 9
Eat eggs but not fish: 3
Eat neither fish nor eggs: 7

We want to find the probability that the chosen vegetarian student eats fish or eggs. To do this, we need to find the total number of vegetarians who eat fish or eggs. Since 9 eat both fish and eggs, and 3 eat eggs but not fish, we can deduce that 9 + 3 = 12 vegetarians eat fish or eggs.

Now, to find the probability, we'll divide the number of vegetarians who eat fish or eggs (12) by the total number of vegetarians (26).

Probability = (Number of vegetarians who eat fish or eggs) / (Total number of vegetarians)
Probability = 12 / 26
Probability ≈ 0.4615

So, the probability that the chosen vegetarian student eats fish or eggs is approximately 0.4615 or 46.15%.

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In the expression 7x + 15, 15 is a COEFFICIENT: False.

In the expression 7x + 15, 15 is a constant.

3x + 7 means (3x + 7) DIVIDED BY 2: False.

3x + 7 means 3x plus 7.

You can rewrite 2(4 + 8) as (2)(4) + (2)(8) using the DISTRIBUTIVE PROPERTY: True.

In Mathematics, the distributive property of multiplication states that when the sum of two or more addends are multiplied by a particular numerical value, the same result and output would be obtained as when each addend is multiplied respectively by the same numerical value, and the products are added together.

By applying the distributive property of multiplication to left side of the equation, we have the following:

2(4 + 8) = (2)(4) + (2)(8)

2(12) = 8 + 16

24 = 24

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Answer:

385 in ^3

Step-by-step explanation:

11 x 7 x 5

The manufacturer claims that their batteries, Type A, exceed their competitor, Type B. However, based on the summary statistics collected by the consumer organization, no definitive conclusion can be drawn as to which battery type lasts longer.

The summary statistics for Type A and Type B batteries must be compared to determine which one lasts longer. The statistics to compare include the mean, median, and range of each battery type.

If the mean and median lifespans of Type A are higher than those of Type B, and if the range of Type A is smaller than that of Type B, then it can be concluded that Type A lasts longer.

However, if the statistics show the opposite, or if there is overlap between the ranges of the two types, then no definitive conclusion can be made as to which battery type lasts longer.

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Answer:

To determine the base of a triangle, we need more information. The base of a triangle is one of its sides, typically denoted as the side opposite to the triangle's vertex or apex. In order to find the base, we need to know either the length of the other side and the angle between them, or the height of the triangle along with the length of one of its sides.

If you have additional information about the triangle, such as the length of another side or the height, please provide that information so that we can help you find the base.

Step-by-step explanation: