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Answer:

H0: μ = 0.125, Ha: μ ≠ 0.125

Step-by-step explanation:

I got the answer correct on the quiz.

The null and alternative hypotheses should the company use for this study H₀: μ = 0.125 Hₐ: μ > 0.125.

An alternate Hypothesis is a statistical experiment that is contradictory to the null hypothesis.

The claim made by the company should be  

Using the company's product will slow down leg growth. According to the study, the average woman's leg hair grows an eighth of an inch per month. So, the company will claim that using its product the average growth will be less than an eighth of an inch per month. Since, the claim contains the word "less than", it will be the alternate hypothesis.

The Null hypothesis, therefore, would be: The average growth is eight of an inch per month.  

Let u represent the growth of hair per month.

The Null and Alternate Hypothesis in symbolic forms would be

Null Hypothesis:

[tex]H_{0} : \mu = 0.125\\[/tex],

Alternate Hypothesis:

[tex]H_{a} : \mu > 0.125[/tex]

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Responder:

$ 1360

Explicación paso a paso:

La pregunta está incompleta. Aquí está la pregunta completa.

Un inversor aplica R $ 1,000.00 a votos simples de 3% al año o más. Determinar o valor recibido después de 12 años:

Antes de determinar el valor recibido después de un año, necesitamos encontrar el interés simple sobre el dinero después de 12 años.

Interés simple = Principal * tasa * tiempo / 100

Principal dado = $ 1,000 (cantidad invertida)

Tasa = 3%

Tiempo = 1 año

SI = 1000 * 3 * 12/100

SI = 36000/100

SI = $ 360

Cantidad después de 12 años = Principal + Interés

Cantidad = $ 1000 + $ 360

Cantidad = $ 1360

Answer:

3+2x-x^3is the answer

Answer:

19x-19+23y

Step-by-step explanation:

add the like terms

Answer:

i think it is 22.75 dollars

Step-by-step explanation:

Answer:

392

Step-by-step explanation:

49+343

Answer: 392

Step-by-step explanation: The term “squared“ means times two. And the term “cubed” times three. So multiply 7*7 then add that to 7*7*7

If you found this answer helpful, give it a five-star rating and a thanks!

(Maybe even a brainliest if you feel like it ;D)

Answer:

i) x = 0.25 and 1.25

ii) x = -0.5 and 1.5

Step-by-step explanation:

Given that y = 4x² - 4x - 1. So for question 1, you can let y = 0, then see which x-value did the curve touches 0 at y-axis.

Same for question 2.

Answer:

For this case we can define y as the response variable and represent the cost and x the independent variable who represent the hours of lessons. We know that the instructor has an initial fee of 12 and charges 8 per hour. So then we can model the situation with this formula:

[tex] y =mx+b[/tex]

Where m = 8 represent the slope and b =12 the intercept so our model would be:

[tex] y = 8x +12[/tex]

And the y intercept would be at x=0 and y=12 and represent the initial amount of money that we need to pay in order to have the instructor.

Step-by-step explanation:

For this case we can define y as the response variable and represent the cost and x the independent variable who represent the hours of lessons. We know that the instructor has an initial fee of 12 and charges 8 per hour. So then we can model the situation with this formula:

[tex] y =mx+b[/tex]

Where m = 8 represent the slope and b =12 the intercept so our model would be:

[tex] y = 8x +12[/tex]

And the y intercept would be at x=0 and y=12 and represent the initial amount of money that we need to pay in order to have the instructor.

Answer:

y= 8x+12

Explanation:

I have just completed it. Thank me later.

Answer:

47.13

Step-by-step explanation:

The requried circumference of the circle is given as 47.13 cm.

The circle is the locus of a point whose distance from a fixed point is constant i.e center (h, k). the equation of the circle is given by

(x - h)² + (y - k)² = r²

Where h, k is the coordinate of the center of the circle on the coordinate plane and r is the radius of the circle.

Here,
The circumference of a circle with a radius of 7.5 cm takes pi to be 3.142 is given as,
Circumference of circle = 2πr
Circumference of circle = 2 × 3.142 × 7.5 = 47.13 cm

Thus, the requried circumference of the circle is given as 47.13 cm.

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Answer:

A. LM ⊥ MN. D. The triangle is isosceles. E. The triangle is a right triangle.

Step-by-step explanation:

edge 2020 <3

Answer:

The correct option is B: 94.1%

Step-by-step explanation:

There are 52 weeks in a year so, if we divide 234 by 12 it gives 4.5 accidents per week on average. Given this information, we can say that in any randomly selected week, there will be an 80% probability of at least two accidents occurring on the said intersection. Hence, this means that a traffic light should be very likely will have to get installed in order to ensure safety of the residents.

Hope that answers the question, have a great day!

Answer:

The probability that he drove the small car is 0.318.

Step-by-step explanation:

We are given that a friend who works in a big city owns two cars, one small and one large. One-quarter of the time he drives the small car to work, and three-quarters of the time he takes the large car.

If he takes the small car, he usually has little trouble parking and so is at work on time with probability 0.7. If he takes the large car, he is on time to work with probability 0.5.

Let the Probability that he drives the small car = P(S) = [tex]\frac{1}{4}[/tex] = 0.25

Probability that he drives the large car = P(L) = [tex]\frac{3}{4}[/tex] = 0.75

Also, let WT = event that he is at work on time

So, Probability that he is at work on time given that he takes the small car = P(WT / S) = 0.7

Probability that he is at work on time given that he takes the large car = P(WT / L) = 0.5

Now, given that he was at work on time on a particular morning, the probability that he drove the small car is given by = P(S / WT)

We will use the concept of Bayes' Theorem for calculating above probability;

So,    P(S / WT)  =  [tex]\frac{P(S) \times P(WT/S)}{P(S) \times P(WT/S)+P(L) \times P(WT/L)}[/tex]

                          =  [tex]\frac{0.25 \times 0.7}{0.25 \times 0.7+0.75 \times 0.5}[/tex]

                          =  [tex]\frac{0.175}{0.55}[/tex]

                          =  0.318

Hence, the required probability is 0.318.

Answer:

70%

Step-by-step explanation:

Divide the two numbers to get a decimal:

112/160 = 0.7

Multiply by 100:

0.7 * 100 = 70

Add a percent sign:

70%

70% percent of the girls in the school study Latin.

Answer:

Each internal vertex represents the winner of the game played by its parents, and there are 1000 leaves, one for each contestant.

Step-by-step explanation:

There are many ways to illustrate the rooted tree model to calculate the number of games that must be played until only one player is left who has not lost.

We could go about this manually. Though this would be somewhat tedious, I have done it and attached it to this answer. Note that when the number of players is odd, an extra game has to be played to ensure that all entrants at that round of the tournament have played at least one game at that round. Note that there is no limit on the number of games a player can play; the only condition is that a player is eliminated once the player loses.

The sum of the figures in the third column is 999.

We could also use the formula for rooted trees to calculate the number of games that would be played.

[tex]i=\frac{l - 1}{m - 1}[/tex]

where i is the number of "internal nodes," which represents the number of games played for an "m-ary" tree, which is the number of players involved in each game and l is known as "the number of leaves," in this case, the number of players.

The number of players is 1000 and each game involves 2 players. Therefore, the number of games played, i, is given by

[tex]i=\frac{l - 1}{m - 1} \\\\ i=\frac{1000 - 1}{2 - 1} \\\\= \frac{999}{1} \\\\=999[/tex]

Answer: C. Each internal vertex represents the winner of the game played by its parents, and there are 1000 leaves, one for each contestant.

Step-by-step explanation: A tree is a connected undirected graph with no simple circuits. When its elements has at most 2 children, it is a Binary Tree.

The tree is formed by nodes. The topmost node is called Root and except for it, every node is connected by a direct line from exactly one other node. This type of node is called Parent.

Parent can be direct connect to a number of other nodes, which are Children and can also be internal nodes.

NOdes with no children are Leaves or external nodes.

In the Binary Tree described by the question, the number of participants is 1000, so there will be 1000 leaves. Each internal vertex repsents the winner of a game played by its parents, i.e., each is a Child, a internal node.

The right answer is alternative C.

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12 + 12 + 18 + 18 = 60

The perimeter is 60 cm

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Answer:

[tex] \frac{1}{2} [/tex]

[tex] \\ [/tex]

Step-by-step explanation:

[tex] \frac{5}{8} - \frac{1}{8} \\ = \frac{4}{8} \\ = \frac{1}{2} [/tex]

Answer:

x=8

Step-by-step explanation:

[tex]square \: both \: side \\ \sqrt{ {x}^{2} } = \sqrt{64 } \: \: \: \\ \\x = 8[/tex]

Answer:

1g/h) transportation budget is $6100*0.11=$610+$61= $671

$671 - $150 = $521

So the car payments alone are $521 under the guidelines

1i/j)

$671 - $75 = $596

The car insurance alone is $596 under the guidelines

Note to really compare such things in the real world you would sum up the costs and add gas and repairs to it. That could make such a high budget for transportation plausible.

(would really, reallly appreciate the brainliest)

Answer:

  B = (5, -1)

Step-by-step explanation:

We can use the required relation to find an expression for B in terms of the given points.

  AB = (1/3)(BC)

  B -A = (1/3)(C -B)

  B = (1/3)C -(1/3)B +A . . . . . add A

  (4/3)B = (1/3)C +A . . . . . . . add 1/3B

  B = (1/4)C +(3/4)A = (C +3A)/4 . . . . . . multiply by 3/4

  B = ((2, -7) +3(6, 1))/4 = (20/4, -4/4) . . . . . substitute given values

  B = (5, -1)

Answer:

5/-1

tru trust me

Step-by-step explanation:

Answer:

(a) 9.18% of people have an intraocular pressure lower than 12 mm Hg.

(b) 80% of adults in the general population have an intraocular pressure that is greater than 13.47 mm Hg.

Step-by-step explanation:

We are given that the distribution of intraocular pressure in the general population is approximately normal with mean 16 mm Hg and standard deviation 3 mm Hg.

Let X = intraocular pressure in the general population

So, X ~ Normal([tex]\mu=16,\sigma^{2} = 3^{2}[/tex])

The z score probability distribution for normal distribution is given by;

                             Z  =  [tex]\frac{ X-\mu}{\sigma } }[/tex]  ~ N(0,1)

where, [tex]\mu[/tex] = population mean = 16 mm Hg

           [tex]\sigma[/tex] = standard deviation = 3 mm Hg

(a) Percentage of people have an intraocular pressure lower than 12 mm Hg is given by = P(X < 12 mm Hg)

       P(X < 12) = P( [tex]\frac{ X-\mu}{\sigma } }[/tex] < [tex]\frac{ 12-16}{3 } }[/tex] ) = P(Z < -1.33) = 1 - P(Z [tex]\leq[/tex] 1.33)

                                                   = 1 - 0.9082 = 0.0918 or 9.18%

The above probability is calculated by looking at the value of x = 1.33 in the z table which has an area of 0.9082.

(b) We have to find that 80% of adults in the general population have an intraocular pressure that is greater than how many mm Hg, that means;

        P(X > x) = 0.80      {where x is the required intraocular pressure}

        P( [tex]\frac{ X-\mu}{\sigma } }[/tex] > [tex]\frac{ x-16}{3 } }[/tex] ) = 0.80

        P(Z > [tex]\frac{ x-16}{3 } }[/tex] ) = 0.80

Now, in the z table the critical value of z which represents the top 80% of the area is given as -0.842, that is;

                           [tex]\frac{ x-16}{3 } } = -0.842[/tex]

                           [tex]x -16 = -0.842 \times 3[/tex]

                           x = 16 - 2.53 = 13.47 mm Hg

Therefore, 80% of adults in the general population have an intraocular pressure that is greater than 13.47 mm Hg.

Answer:

(a) The correlation is positive

Step-by-step explanation:

Answer:

An angle with a positive measure will have rotated counterclockwise, or doesn't cross over itself at the start of the rotation. As you can see, the only graph that initially turns counterclockwise is the first graph.

Step-by-step explanation:

Answer:

8n + 46

Step-by-step explanation:

Combine like terms. First, simplify the signs. two negatives directly next to each other equals one positive:

- (-5n) = + 5n

30 + 5n + 16 + 3n = (30 + 16) + (5n + 3n)

(30 + 16) = 46

(5n + 3n) = 8n

8n + 46 is your answer.

Answer:

3 gallons is 12 quarts and is less than 15 quarts

Step-by-step explanation:

1 gallon    = 4 quarts

2 gallons = 8 quarts

3 gallons = 12 quarts

Answer

no, 3 gallons is less than 15 quarts

Step-by-step explanation:

1 gallon=3 quarts

3 gallons=12 quarts

Answer:[tex]236\ in.^2[/tex]

Step-by-step explanation:

Given

Dimension of gift box is

Width [tex]b=8\ in.[/tex]

height [tex]h=6\ in.[/tex]

Length [tex]L=5\ in.[/tex]

So, box is in shape cubiod

and its surface area is given by

[tex]S.A.=2(lb+bh+hl)[/tex]

[tex]S.A.=2(5\times 8+8\times 6+6\times 5)[/tex]

[tex]S.A.=2(40+48+30)[/tex]

[tex]S.A.=2\times 118[/tex]

[tex]S.A.=236\ in.^2[/tex]

So, [tex]236\ in.^2[/tex] of gift paper is required

Answer:

y = 15

Step-by-step explanation:

Given: y varies directly with x, x=4 when y=20

To find:  y when x = 3

Solution:

As y varies directly as x, it means that as x increases, y also increases by the same factor.

As y varies directly with x,

[tex]y=kx[/tex]

Here, k is a constant

As x = 4 when y = 20,

[tex]20=4k\\k=\frac{20}{4}=5\\\Rightarrow y=5x[/tex]

Put x = 3

[tex]y= 5(3) = 15[/tex]

Answer:

5

Step-by-step explanation:

47-5=42

42/6=7

5/6 is the number we have to  subtract from 47/6 to make 7

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

We have to find the number when we need to subtract from 47/6 to make 7.

Let the unknown number be x

47/6-x=7

Add x-7 on both the sides

47/6-7=x

Take LCM as 6

(47-42)/6=x

When 42 is subtracted from 47 we get 5.

5/6=x

Hence, 5/6 we have to  subtract from 47/6 to make 7

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