20*20 PLZ
CAUSE THIS WORK IS HARD AND IM IN THE 3RD GRADE

The correct answer is A. line. A line is a straight path that extends infinitely in both directions. It has no endpoints and continues indefinitely.

A line is a basic geometric object that is defined by two points or can be represented by a single equation. It is characterized by its straightness and infinite length, extending in both directions without any boundaries or endpoints. A line can be represented by a straight line segment with two distinct points or by an equation such as y = mx + b in a coordinate system.

On the other hand, a plane refers to a two-dimensional flat surface that extends infinitely in all directions. It is not a straight path but rather a flat, continuous surface. A ray, is a part of a line that has one endpoint and extends infinitely in one direction. It is not a straight path that continues indefinitely in both directions like a line.

A triangle is a closed geometric shape with three sides and three angles. It is not a straight path but rather a closed figure formed by connecting three non-collinear points.Therefore ,the correct answer is A.

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The number line that correctly compares √24 and 4.256 is number line C.

A number line can be defined as a type of graph with a graduated straight line which contains both positive and negative numbers (numerical values) that are placed at equal intervals along its length.

This ultimately implies that, a number line can be used for the comparison of two or more numbers such as √24 and 4.256. Also, a number line typically decreases in numerical value towards the left and increases in numerical value towards the right.

Taking the square root of √24, we have:

√24 = 4.899

In this context, we can reasonably and logically deduce that 4.899 is greater than 4.256 (4.899 > 4.256) and would be placed at the right hand side of the number line and further from 4.899 as shown in number line C in the image attached below.

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The number of students that are in both the Categories A and B are 16 students.

In the question ,

it is given that ,

the total number of students in category A and category B is 32 students .

which is represented as A union B ,

that is n(AUB) = 32 ,

the number of students in category A = n(A) = 24

the number of students in category B = n(B) = 24

we need to find the number of students that are in both category ,

that is n(A∩B) .

we know that ,

n(AUB) = n(A) + n(B) - n(A∩B)

Substituting the values , we get

n(A∩B) = 24 + 24 - 32

= 48 - 32

= 16

Therefore , The number of students that are in both the Categories are 16 students.

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Answer: 280 tons

Step-by-step explanation: divide all at tons/pound which accumulated to 280 tons

Answer: 10 ships

Step-by-step explanation:

Answer:

4 weeks

Step-by-step explanation:

14.50 (4) + 20= 78

12.50 (4) + 28= 78

Answer:

Option B.

Step-by-step explanation:

We need to find the range of numbers is most appropriate for the y-axis scale and interval on a graph for given table.

From the given table it is clear that the minimum value of y is 10 and the maximum value of y is 34.

It means 10 and 34 must be included in the Range.

In option C and D 34 in not included in the range, so these options are incorrect.

In option A, 10 is the minimum value of range and interval of 10 is not possible for the range 10-35, because it contains only multiple of 10 on the y-axis. So, this option is incorrect.

In option B, both 10 and 34 are included and interval of 5 is possible for range 0-35.

Therefore, the correct option is B.

Answer:13.All numbers are rational numbers because  they can be divided by 1.

14. All I can tell you is that what that thing is 19 is Not Rational.

15. I don’t know how to do this.........

and the rest I don’t know HOW to do those

Step-by-step explanation:

Answer:

p = 1

Step-by-step explanation:

Given that the system intersect at (4, q) then this point satisfies both equations, that is

q = 4² - 4(4) + 3

q = \(\frac{1}{2}\) (4) + p

Equating both gives

16 - 16 + 3 = 2 + p, that is

3 = 2 + p ( subtract 2 from both sides )

p = 1

The surface area of the cylinders are: 7794 square units, 904.9 square units,  12804 square units

recall that a cylinder is a three-dimensional solid with two parallel circular bases joined by a curved surface at a fixed distance from the center.  It is considered a prism with a circle as its base and is a combination of two circles and a rectangle

the general formula for the surface area of a cylinder is

SA = 2пr(r+h)

1  SA =2*22/7*20 (20+42)

125.7(62)

SA = 7794 square units

2) SA = 2пr(r+h)

Sssurface rea = 2*3.142*9(9+7)

Surface area = 56.6(16)

Surface area = 904.9 square units

3)   SA = 2пr(r+h)

surface area = 2*3.142*21(21+76)

Surface area = 132(97)

Surface area = 12804 square units

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To find vectors u→ and v→ in R3 such that w=span{u→,v→}, we can use the process of Gaussian elimination to solve the linear system of equations formed by equating each component of the vectors in w to the corresponding linear combination of the components of u→ and v→.

We start by setting up the following system of equations:

−a = xu + yv
−b = xv
−ab = yv

where x and y are scalar coefficients, and u = [1 0 0] and v = [0 1 0] are the standard basis vectors in R3.

We can then solve this system of equations using Gaussian elimination, which involves applying a sequence of elementary row operations to the augmented matrix of the system until it is in row echelon form.

The row echelon form of the augmented matrix is:

[ 1 0 a ]
[ 0 1 b ]
[ 0 0 0 ]

From this row echelon form, we can read off the solution as:

x = −b
y = ab
z = a

Thus, we have found that any vector w in the form [−a −b−ab] can be written as a linear combination of the vectors u→ = [1 0 −b] and v→ = [0 ab a], i.e., w = xu→ + yv→ for some scalars x and y.

Therefore, we have shown that w=span{u→,v→} with u→ = [1 0 −b] and v→ = [0 ab a].

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Answer:

3\2 is the marked

y cos x,=2

3\2=0.5

x=0.5*2=3.0

=3.0*2=6.0

Answer:

well, you ignored the 6 altogether, so that's not good. But you've almost got the right idea for 2.8 x 4.

it's just a matter of decimal points.

0.6 is 6 ÷ 10, right?

so if you want to say 8x4 is 32, that's cool but what about the 10?

use it now,. 32 ÷ 10 = 3.2

8 + 3.2 = 11.2

yeah-ya...... right?

Answer:

1) 1000

2) 100

Step-by-step explanation:

I think that's it

Answer: There are 1,000 milliliters in a liter and 100 centimeters in a meter.

Answer:

50

Step-by-step explanation:

6/0.12=50

Answer:

not a right triangle in maths

Step-by-step explanation:

FALSE, the Pythagorean Theorem is not satisfied

but true in real life, i mean the shape

The expressions that will give you a difference of 5 are: -3 - (-8) and 1 - (-4).

The difference of two expressions is determined by subtracting one from the other.

Find the difference of each of the expressions given to determine which will give us 5.

-3 - (-8)

= -3 + 8

= 5

-2 - 3 = -5 [this is not the same as 5]

1 - (-4)

= 1 + 4

= 5

7 - (-2)

= 7 + 2

= 9

-3 - (-8) and 1 - (-4) will give us a difference of 5.

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Answer:constrictive intergers

Step-by-step explanation:

Answer:

\(140,141,142,143\)

Step-by-step explanation:

\(Let \: x \: be \: the \: lowest \: number .\\ We \: have \: an \: equation:x + (x + 1) + (x + 2) + (x + 3) = 566 \\ \Leftrightarrow 4x + 6 = 566 \\ \Leftrightarrow 4x = 560 \\ \Leftrightarrow x = 140 \\ \Rightarrow 4 \: consecutive \: numbers:140,141,142,143\)

Answer:

Step-by-step explanation:

Answer:

(x + 3i)(x - 3i)

Step-by-step explanation:

Wrong statement: x² + 9 = (x + 3)(x + 3)

Correct statement: x² + 9 = x² - (3i)² = (x + 3i)(x - 3i)

Ensuring that data is collected the same way each time it is collected is an example of data consistency.

Therefore, ensuring that data is collected the same way each time it is collected is an example of data consistency.

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Answer:

10x-24

Step-by-step explanation:

16x-24-6x

10x-24

Answer:

-24

Step-by-step explanation:

Answer:

y = -1/3x

Step-by-step explanation:

The slope of that are perpendicular lines are negative opposites of each other. If a line has a slope of 3, then a line perpendicular to it will have a slope of (-(1/3)).

Use the equation of a line in point-slope form to solve this;

y = mx + b

where "m" is the slope and "b" is the y-intercept.

Substitute the slope in;

y = (-1/3)x + b

Since it passes through the origin, then it has no y-intercept, therefore the equation of the line is;

y = -1/3x

Given that, The 99% confidence interval of a population mean is (1,7). We need to find the 95% confidence interval.As the confidence interval becomes wider as the confidence level increases. Hence, the 95% confidence interval will have a greater range than the 99% confidence interval.Confidence interval can be calculated by the formula:Confidence Interval = $\overline{X}$ ± Zα/2 (σ/√n)Where, $\overline{X}$ is the sample mean.Zα/2 is the critical valueσ is the population standard deviationn is the sample sizeNow, Zα/2 for 99% confidence interval is 2.576 as per the normal distribution table.In the same way, Zα/2 for 95% confidence interval is 1.96.Converting the above formula for 95% confidence interval:1.96 = (1,7 - $\overline{X}$)/(σ/√n)On solving the above equation, we get: σ/√n = 0.2039σ = 0.2039 √n.....(1)Also, (1,7 - $\overline{X}$)/σ = 1.96....(2)Substituting equation (1) in equation (2), we get:(1,7 - $\overline{X}$)/ (0.2039√n) = 1.96On solving this equation, we get:$\overline{X}$ = 1.47 √n + 1.7...........(3)Now, for option (a), (b), (c) and (d), we need to verify which option satisfies the equation (3).Let's check for option (a):(2+6)/2 = 4............taking the average1.47 √n + 1.7 = 4n = 19.22 squaring both sidesn = 363.6Hence, option (a) is the correct answer.Write the answer in main part:The 95% confidence interval is (2,6).Explanation:On solving the equation, we get that the option (a) is correct. Therefore, the 95% confidence interval is (2,6).Conclusion:Therefore, option (a) (2,6) is the correct 95% confidence interval.

The 95% confidence interval for the population mean is given as follows:

c) (2,6).

The 99% confidence interval for the population mean is given as follows:

(1,7).

Hence the sample mean is given as follows:

(1 + 7)/2 = 4.

Meaning that the mean of the two bounds in the interval must be of 4.

The 95% confidence interval is narrower than the 99% confidence interval, hence, considering the mean of the bounds of 4, option c is the correct option for this problem.

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A Connected Graph is the one in which every two pairs of vertices are connected.

The correct option is (d)

Given,

In the question:

A_____ is the one in which every two pairs of vertices are connected.

a. directed graph

b. weighted graph

c. complete graph

d. connected graph

To choose the correct answer.

What is connected graph with example?

A graph is said to be connected if there is a path between every pair of vertex. From every vertex to any other vertex, there should be some path to traverse. That is called the connectivity of a graph. A graph with multiple disconnected vertices and edges is said to be disconnected.

Now According to the question:

The right option is :

Connected Graph.

Hence, A Connected Graph is the one in which every two pairs of vertices are connected.

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The transformation of System A into System B is:

Equation [A2]+ Equation [A 1] → Equation [B 1]"

The correct answer choice is option D

How can we transform System A into System B?

To transform System A into System B as 1 × Equation [A2] + Equation [A1]→ Equation [B1] and 1 × Equation [A2] → Equation [B2].

System A:

-3x + 4y = -23 [A1]

7x - 2y = -5 [A2]

Multiply equation [A2] by 2

14x - 4y = -10

Add the equation to equation [A1]

14x - 4y = -10

-3x + 4y = -23 [A1]

11x = -33 [B1]

Multiply equation [A2] by 1

7x - 2y = -5 ....[B2]

So therefore, it can be deduced from the step-by-step explanation above that System A is ultimately transformed into System B as 1 × Equation [A2] + Equation [A1]→ Equation [B1] and 1 × Equation [A2] → Equation [B2].

The complete image is attached.

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In a multinomial​ experiment, the probability that 5 will be tall and​ colorful, 2 will be tall and​ colorless, 2 will be short and​ colorful, and 1 will be short and colorless is 0.0329

Probability:

According to mathematics, the word probability refers the possibility of happening an event.

Given,

According to a theory in​ genetics, if tall and colorful plants are crossed with short and colorless​ plants, four types of plants will​ result: tall and​ colorful, tall and​ colorless, short and​ colorful, and short and​ colorless, with corresponding probabilities of nine sixteenths​, three sixteenths​, three sixteenths​, and one sixteenth.

Here we need to find the probability that 5 will be tall and​ colorful, 2 will be tall and​ colorless, 2 will be short and​ colorful, and 1 will be short and colorless by using the multinomial​ experiment.

Here we know that, the value of different probabilities are given as

=> X1 = tall and colorful, P(X1)=9/16

=> X2 = tall and colorless, P(X2)=3/16

=> X3 = short and colorful, P(X3)=3/16

=> X4 = short and colorless, P(X4)=1/16

Here we know that the total number of plants is 10 and

the value of X1 = 5, X2 = 2, X3 = 2, X4 = 1

Now, the probability is calculated as,

=> P(X1 = 5, X2 = 2, X3 = 2, X4 = 1) = (10!/5!2!2!1!) (9/16)⁵(3/16)²(3/16)²(1/16)¹

When we simplify this one then we get,

=> P(X1 = 5, X2 = 2, X3 = 2, X4 = 1) = 7560 x 0.00000435008

=> P(X1 = 5, X2 = 2, X3 = 2, X4 = 1) = 0.0329

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The rate interest of the first CD account is 5%.

An interest rate tells you how high the cost of borrowing is, or high the rewards are for saving. So, if you're a borrower, the interest rate is the amount you are charged for borrowing money, shown as a percentage of the total amount of the loan.

Given that, two certificates of deposit pay interest rates that differ by 3%.

Let 1000 be the amount of principal invested. Let n/100 be the rate of interest on the first CD and n+3/100 be the amount paid on the second CD.

1000(n/100)=50

1000(n+3/100)=655

10n=50

n=5%

So, n+3= 8%

Therefore, the rate interest of the first CD account is 5%.

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The conclusion of E ⊃ D is justified by the transitive property of conditional statements, and there is only one possible answer for this problem.

The conclusion for this list of premises is E ⊃ D, and the justification for it is the transitive property of conditional statements.

To explain this, we can start by looking at the first premise: R ⊃ D. This means that if R is true, then D must also be true.

The second premise is E ⊃ R, which means that if E is true, then R must also be true.

Using the transitive property of conditional statements, we can combine these two premises to get:

E ⊃ D

This is the conclusion, which states that if E is true, then D must also be true. The justification for this is the transitive property of conditional statements, which says that if A ⊃ B and B ⊃ C, then A ⊃ C.

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The trinomial expression of (x−3)(2x−5) is 2\(x^{2}\) − 11x + 15.

To express the product of two binomials (x−3) and (2x−5) as a trinomial, we can use the FOIL method or distributive property.

FOIL stands for First, Outer, Inner, Last. We multiply the First terms in each binomial, then the Outer terms, then the Inner terms, and finally the Last terms. We then add these four products together to get our trinomial.

Using the distributive property, we can multiply each term in the first binomial by each term in the second binomial. This gives us four terms, which we can then simplify by combining like terms to obtain the trinomial.

So, using either method, we get:

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

                  = 2\(x^{2}\) -5x -6x + 15

                  = 2\(x^{2}\) − 11x + 15

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