An estimator fry of the population value my is more efficient when compared to another estimator fy, if (a) E(My) > E(My). (b) it has a smaller variance. (c) its CDF is fatter than that of the other estimator. (d) both estimators are unbiased, and Var(y) < Var(y).

Answer: The greater number is 3x

Step-by-step explanation:

As the problem states that one number is one third of another number, hence we can set up a proportion

x / (greater number) = 1/3

we can then cross multiply to find out the greater number.

x * 3 = greater number

so the greater number is 3x

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The Expression for greater number is x/3.

A branch of mathematics known as algebra deals with symbols and the mathematical operations performed on them.

Variables are the name given to these symbols because they lack set values.

In order to determine the values, these symbols are also subjected to various addition, subtraction, multiplication, and division arithmetic operations.

Given:

let the lesser number be x.

So, the one number is x.

Now, the another number is one third of one number.

So, the another number is 1/3 (x)= x/3

Hence, the expression is x/3.

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Answer: Just 1

Step-by-step explanation:

The absolute value is always positive, so there is just 1.

Answer:

I find it best to view these equation in the slope-intercept form.

-7x - 5y = -1

Let's rearrange the terms to isolate the y and put the equation in the y=mx+b form

5y = -1 + 7x

y = -1/5 + (7/1)x

or y = +(7/1) x + -1/5

Here m, the slope, = 7/1

A line parallel to this line will have the same slope or 7/1

A line perpendicular to this line will have a slope that is the negative inverse of this slope, in other words -1/7

Hope this helps - Please mark as Brainliest

Answer:

75y - 360y²

Step-by-step explanation:

ANSWER

3y × 5 (5-6y x 4)

Multiply the monomials

15y (5-24y)

Apply the Distributive Property

15y × 5-15y × 24y

Multiply the monomials

75y - 360y²

I hope it is useful to you.

The highest point scored is by Carlos with 19 points. Mario's highest was 15. so, Carlos scored 4 points more than Mario.

In the 7th game, Carlos scored 19 points which is the highest point of his game. In the 1st game, Mario scored 15 points which was the highest point he scored. Therefore, Carlos had the highest scoring game between the two of them. Carlos scored 4 points more than Mario did in his highest-scoring game. You can also construct a box plot for this question which will help you visualise this better. The box plot can be made by drawing a number line and marking the following points: minimum, first quartile, median, third quartile and maximum.

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The full question is:

Mario and Carlos, two brothers, play for the same basketball team. Here are the

points they scored in 10 games:

Game 1 2 3 4 5 6 7 8 9 10

Mario 15 X X 12 7 11 12 11 10 11

Carlos 10 X 9 12 15 X 19 11 12 12

(Xs mark games each one missed.) Which brother had the

highest-scoring game? How many more points did he score in

that game than the other brother did in his highest-scoring game?

Step-by-step explanation:

(a)

the line for time = 0 minutes starts at y (pounds of candy) = 40 pounds

(b)

as the line goes up, when the time goes up, it is clear that the function result (the amount of candy in the container) increases, as the time increases.

so, the second answer option is correct.

to find the rate of pound of candy per minute, we need to find the slope.

one unit on the coordinate grid in the time (x) direction is 1 minute.

one unit in the pounds of candy (y) direction is 40 pounds (0, 40, 80, 120, ...).

when we look at what corners of the coordinate grid units the line goes through (to find integer numbers of the function), we see that the line goes through e.g.

(0, 40)

(1, 160)

(2, 280)

...

we see that x anyways changes by +1, and y anyways charges by +120.

the slope is therefore +120/+1 = 120.

the increase rate of the amount of candy in the container is 120 pounds per minute

Answer: 1750 calories

Step-by-step explanation:

[tex]\frac{700calories}{12oz} * 30 oz = 1750 calories[/tex]

Answer:

Step-by-step explanation: the area of the shape is the length times width or base times height. It's our length is 12 Are with this eight. And when you multiply 12 times eight, we get 96 feet squared, which is the area of our rectangle. I think its a rectangle.

The volume of the parallelepiped with adjacent edges PQ, PR, and PS     is V=4  

Given three vectors, there is a product, called scalar triple product, that gives (the absolute value of it), the volume of the parallelepiped that has the three vectors as dimensions.

So

PQ=(-2-2,1-3,0-2)=(-4,-2,-2)

PR=(-2-1,-1-4,0+1)=(-3,-5,1)

PS=(-2-3,1-6,0-1)=(-5,-5,-1)

The scalar triple product is given by the determinant of the matrix (3×3)

that has in the rows the three components of the three vectors:

|-4 -2 -2|

|-3 -5 +1|

|-5 -5 -1|

and the determinant is given for example with the Laplace rule choosing the first row:

a(ad-bc)-b(ad-bc)+c(ad-bc)

=-4[(−5)(−1)−(1)(−5)]−(−2)[(−3)(−1)−(1)⋅(-5)]+(−2)[(−3)(−5)−(−5)(-5)]

=-4[5+5]+2[8]-2[-10]

-4(10)+16+20

=-40+36

V=-4

So the volume is: V=|−4|=4

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1 and 2 are the factors of 2.

2 is a prime number, it has only two factors, 1 and 2. Also, we also know that the factors of 2 are the exact divisors of that number. There is another way to represent the factors of any number, by arranging the number of objects.

It is the only number when added and multiplied to itself brings the same result, 4. Factors of 2 can be positive and negative as well.

Prime factors of 2, and factors of 2 in pairs along with solved examples for a better understanding. Factors of 2 are all the numbers which on multiplying give the result of 2.

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The sentence which is Proposition is b,c,d,e,g,h, i. We will find its Negation below.

What is Proposition?

An assertion that can be either true or untrue is referred to as a proposition (but not both). For instance, the statements "Paris is in France" (true), "London is in Denmark" (false), "2 equals 4" (true), and "4 Equals 7 (false)" are examples of propositions. The questions "what is your name?" and "complete your homework" are not propositions, nor are the statements "this sentence is wrong" "x is an even number" or "Socrates" (which is not even a phrase). A proposition's truth value refers to whether it is true or false.

What is Negation of Proposition?

The words " ¬" or " ~" are used to denote a statement's denial. For instance, "Arjun's dog has a black tail" is the given sentence. The statement "Arjun's dog does not have a black tail" is the negation of the one that has been said. As a result, the negation of the provided statement is false if the given statement is true.

Our first sentence is “Have a nice day”.

The phrase "Have a nice day" cannot be true or wrong, hence it cannot be a proposition. Additionally, a proposition is a declarative sentence, whereas this sentence is imperative.

The second sentence is "The soup is cold". Its Negation will be "The soup is not cold".

The third sentence is "The patient has diabetes". Its Negation will be "The patient does not have diabetes".

Fourth is "The light is on". Its Negation will be "The light is not on".

Fifth is "It’s raining today". Negation will be "It’s not raining today".

The Sixth is "you like my new shoes". This Sentence is not a proposition.

Seventh is "The sky is purple". Its Negation will be "The sky is not Purple".

Eight is "Every prime number is even". Its Negation will be "It’s not true that every prime number is even".

The ninth sentence is “There is a number that is larger than 17”. Its Negation will be "There is not a number that is larger than 17".

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The expression which is correct representing the cost to rent a motorboat than a rowboat for x hours is 9x + 22.

Equation:

An equation is a mathematical formula that contains two algebraic expressions on either side of an equal sign (=). It shows the equivalence relation between the formula written on the left and the formula written on the right. In any formula, L.H.S = R.H.S (left side = right side). You can solve equations to find the values ​​of unknown variables that represent unknown quantities. If a statement doesn't have an equals sign, it means it's not an equation.

According to the question:

The equation of Rowboat rental is Given as:

8.50x + 3

and, the equation of motorboat rental is given as:

17.50x + 25

Now,

the difference between the equation (1) from equation(1):

   17.50x + 25 - (8.50x + 3)

⇒ 17.50x - 8.50x + 25 - 3

⇒ 9x + 22

Complete Question:

A boat rental company has two kinds of boats, rowboats and motorboats. The expressions below represent the cost,

in dollars, for renting each kind of boat for x number of hours.

Cost of a rowboat rental: 8.50x +3

Cost of a motorboat rental: 17.50x +25

Which expression shows how many more dollars it costs to rent a motorboat than a rowboat for x hours?

*8x +22

*9x + 22

*9x + 28

*26x + 28

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Answer:

[tex]\frac{1}{36}[/tex]

Step-by-step explanation:

For negative exponents, you get the original number and make it into its reciprocal, and then whatever power it is to, is the power the bottom number is to, so you get:

[tex]6^{-2} = \frac{1}{6^{2} }[/tex]

Which simplifies to:

[tex]\frac{1}{36}[/tex]

So, [tex]6^{-2}[/tex] in fraction form, is [tex]\frac{1}{36}[/tex].

Hope this helped!
Please give me brainliest if possible!

Answer:

About 50 percent

Step-by-step explanation:

Answer:

r = 5.6

Step-by-step explanation:

To solve this problem, we need to isolate r on one side of the equation. To do this, we need to subtract 2.3 from both sides, giving us:

2.3 + r = 7.9

r = 5.6

So, r = 5.6

Hope this helped!

Answer:

5.6

Step-by-step explanation:

2.3+r=7.9

r=7.9-2.3

r=5.6

Answer:

Slope = 47

Step-by-step explanation:

 Substitute the x and y coordinates in the formula and find the slope.

  (7 , 349 ) ;  x₁ = 7 ; y₁ = 349

  (2 , 114) ;  x₂ = 2 ; y₂ = 114

[tex]\sf \boxed{Slope=\dfrac{y_2-y_1}{x_2-x_1}}[/tex]

          [tex]\sf = \dfrac{114-349}{2-7}\\\\=\dfrac{-235}{-5}\\\\=47[/tex]

Answer: m=47

Step-by-step explanation:

                               [tex]\displaystyle\\The \ slope\ m=\frac{y_2-y_1}{x_2-x_1}[/tex]

Given: (7,349)  (2,114)         Find: m

x₁=7       x₂=2      y₁=349      y₂=114

[tex]\displaystyle\\m=\frac{114-349}{2-7} \\\\\\m=\frac{-235}{-5} \\\\\\m=47[/tex]

The two digit number is 54 and the system of equations that models the given scenario is x + y = 9 and x - y = -1, where x and y are the digits of the two-digit number.

Let the two-digit number has digit x in tens place value and y in ones place value, then the two digit number is

10x + y

As the sum of the digits is 9

x + y = 9

When the two-digit number is reversed, the resulting two-digit number would be

10y + x

As it is given that this resulting number is 9 greater than original number

10y + x = (10x + y) + 9

Subtracting x and y on both sides

10y + x - y - x = 10x + y + 9 - y - x

9y = 9x + 9

Dividing by 9

y = x + 1

Rearranging

x - y = -1

So the system of equation representing this scenario is

x + y = 9

x - y = -1

To solve for x

Add the equations

(x + y) + (x - y) = 9 + (-1)

2x = 8

Dividing by 2

x = 4

To solve for y, substitute x in first equation

4 + y = 9

Therefore y = 5

Thus the original number is

10x + y = 10×4 + 5

= 45

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Answer: In any triangle, the sum of the three angles is always 180 degrees. This is known as the triangle angle sum theorem.

So in triangle efg, we can use this theorem to find angle g in terms of x:

angle e + angle f + angle g = 180

5x+6 + 4x-6 + 5x-2 = 180

14x = 180 + 8

14x = 188

angle g = 5x-2 = 5(188/14) - 2 = 5(13.4285714) - 2 = 67.1428571 degrees

So angle g = 67.1428571 degrees

It's important to note that the values of x are the unknowns.

Step-by-step explanation:

Answer:

product would be 6x^2-3x

Step-by-step explanation:

don't know the rest

Converted (a) 2.2 kg = 77.6 oz, 4.83 lbm. (b) 12 lbf/in2 = 82.7 kPa, 620.6 mmHg. (c) 160 hp = 119,360 cal/s, 88,000 Btu/s. (d) 82 gallons = 328 quarts, 313,981.8 mL. (e) 34 in = 0.8636 m, 86.36 cm.

What is conversion factor ?

A conversion factor is a ratio of two equivalent measurements used to convert a quantity from one unit to another.

(a) To convert 2.2 kg to ounces, we can use the conversion factor 1 kg = 35.274 oz. So, 2.2 kg = 2.2 * 35.274 oz = 77.6 oz. To convert 2.2 kg to lbm, we can use the conversion factor 1 kg = 2.205 lbm. So, 2.2 kg = 2.2 * 2.205 lbm = 4.83 lbm.

(b) To convert 12 lbf/in2 to kPa, we can use the conversion factor 1 lbf/in2 = 6.894 kPa. So, 12 lbf/in2 = 12 * 6.894 kPa = 82.7 kPa. To convert 12 lbf/in2 to mmHg, we can use the conversion factor 1 lbf/in2 = 51.715 mmHg. So, 12 lbf/in2 = 12 * 51.715 mmHg = 620.6 mmHg.

(c) To convert 160 hp to cal/s, we can use the conversion factor 1 hp = 746 cal/s. So, 160 hp = 160 * 746 cal/s = 119,360 cal/s. To convert 160 hp to Btu/s, we can use the conversion factor 1 hp = 550 Btu/s. So, 160 hp = 160 * 550 Btu/s = 88,000 Btu/s.

(d) To convert 82 gallons to quarts, we can use the conversion factor 1 gallon = 4 quarts. So, 82 gallons = 82 * 4 quarts = 328 quarts. To convert 82 gallons to mL, we can use the conversion factor 1 gallon = 3785.4 mL. So, 82 gallons = 82 * 3785.4 mL = 313,981.8 mL

(e) To convert 34 in to m, we can use the conversion factor 1 in = 0.0254 m. So, 34 in = 34 * 0.0254 m = 0.8636 m. To convert 34 in to cm, we can use the conversion factor 1 in = 2.54 cm. So, 34 in = 34 * 2.54 cm = 86.36 cm.

Converted (a) 2.2 kg = 77.6 oz, 4.83 lbm. (b) 12 lbf/in2 = 82.7 kPa, 620.6 mmHg. (c) 160 hp = 119,360 cal/s, 88,000 Btu/s. (d) 82 gallons = 328 quarts, 313,981.8 mL. (e) 34 in = 0.8636 m, 86.36 cm.

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Answer: 2m+4

Step-by-step explanation:

To simplify, we need to combine "like terms", which means terms that are similar in that it is either just a number or a coefficient and variable. In this case, 3m and -m are like terms, and -6, 2, and 8 are like terms.

Now, we can combine.

-6 + 3m + 2 -m + 8

-4 + 3m - m + 8

4 + 3m - m

4 + 2m (also can be written as 2m + 4)

hope this helps!

Answer:

yes

Step-by-step explanation:

On solving the provided question, we can say that by permutation  900 games were actually played; N = 900/45 = 20

The permutation of a set in mathematics is essentially the rearranging of its elements if the set is already ordered, or the arrangement of its members in a linear or sequential order. The act of altering the linear order of an ordered set is referred to as a "permutation" in this context. The mathematical calculation of the number of possible arrangements for a given set is known as permutation. Permutation, in its simplest form, refers to the variety of possible arrangements or orders. The placement of the elements matters with permutations. The placement of items in a specific order is known as a permutation. Here, the set's components are sorted in either chronological order or linear order.

The number of matches would be if each player faced each other once.

[tex]^{10}C_2[/tex] = 10! / 2! 8!

= 10 X 9 / 2 = 90/2

= 45

Given that 900 games were actually played,

N = 900/45 = 20

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Given that 19 students completed the first quiz, the probability that the same children who finished the first exam also passed the second quiz is P(S/F) = 0.63.

How possible something is to happen is determined by its probability. By dividing the whole significance level by the total number of ways an event could occur, one can calculate the likelihood.

In this situation, conditional probability is used. P represents the conditional probability like an occurrence, A, given that B has occurred (AIB). We would estimate the likelihood as

P(AIB) is defined as (Probability of A and B)/Probability of B.

Probability of S and F in the iven question is 12/21. (12 of the students in the class passed both quizzes)

Probability of S = 19/21

Therefore,

P(SIF) = (12/21) / (19/21)

(PSIF) = 12/21 * 21/19

(PSIF) = 12/19 = 0.63

The correct option is A

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The complete question is-

Mr. Brown's statistics class consists of 21 seniors. The class took two quizzes in one week, and 12 of the students in the class passed both quizzes. What is the probability that the same students who passed the first quiz also passed the second quiz given that 19 students passed the first quiz?

A. P(S/F) = 0.63

B. P(S/F) = 0.2

C. P(S/F) = 0.8

D. P(S/F) = 1.31

Answer:Dilation is the increase or decrease in the size of a figure by a factor k. If a figure is dilated to produce an image, they are similar, hence the ratio of the corresponding sides are proportional. The length of the side between the vertices A′ and B′ is 16/7 units. Find out more on transformation at: brainly.com/question/1548871 Advertisement

Step-by-step explanation:

No, the absolute value of a number is always non-negative, meaning it is greater than or equal to zero, but it is not always equal to zero.

The absolute value of a number represents the distance of that number from 0 on the number line and a number can be positive or negative.

For example, the absolute value of 5 is 5, which is greater than zero. The absolute value of -5 is also 5, which is also greater than zero. The only time the absolute value of a number is equal to zero is when the number is zero, |0| = 0.

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Answer:

19 tables, f(19) = $280

1 table, f(1) = $33

Step-by-step explanation:

Let f(x) be the money Serenity makes each day, where x is the number of tables she serves.

Her saily income includes a fixed injcome of $20/day, plus $13/table in tips.

We can write f(x) = $20 + $13x

When x = 19, f(19) = $280

When x = 1, f(1) = $33

The components of the torque about the origin when the force acts in

(a) the positive x direction is 1.4N.

(b) the negative z direction is 2.21N.

What is constant force of magnitude?

The motion of a particle occurs on a plane and is influenced by a force of constant magnitude that is always perpendicular to the particle's velocity.

Given:

A particle is located at vector r = (0.54m)i + (-36m)j +(.85m)k constant force of magnitude 2.6 N acts on the particle.

We have to find the torque about positive x direction and negative z direction.

At  the positive x direction the torque is (T)

= the x component of position vector . F

= 0.54 x 2.6

= 1.4 N

At negative z direction Torque = - (z component of position vector).F

                                                   = .85 x 2.6

                                                   = 2.21 N

Hence,

The components of the torque about the origin when the force acts in

(a) the positive x direction is 1.4N.

(b) the negative z direction is 2.21N.

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Answer:

The percent mass composition of zinc in the brass sample is:

(mass of zinc / total mass of sample) x 100%

(4.21 g / 12.00 g) x 100% = 35.08% zinc

So the brass sample contains 35.08% zinc by mass.

To find the percent mass composition of copper in the sample, you can use the information that the sample is made of copper and zinc only, so you can use the difference between 100% and the percent zinc:

100% - 35.08% = 64.92% copper

So the brass sample contains 64.92% copper by mass.

Answer:

116.58

Step-by-step explanation:

([tex]\frac{w2x - 3}{10}[/tex]) z  Substitute in what you know

[tex](\frac{(-6)(2)(1.2) - 3}{10})[/tex] (-67)

[tex](\frac{-14.4-3}{10})[/tex](-67)

[tex](\frac{-17.4}{10})[/tex](-67)

-1.74(-67)

116.58

Answer:

116,58

Step-by-step explanation:

((-6)·2·1,2-3)÷10·(-67)

(-14,4-3)÷10·(-67)

-17,4÷10·(-67)

-1,74·(-67)

116,58