You are a research assistant. You are tasked with writing a research paper. You spend 1 1/2 hours researching, 2 1/6 hours writing, and 3 1/2 hours editing.

How many hours do you spend on the task?

Answer: I think 9

Step-by-step explanation:

Answer:

(a) 2 ≤ t < 4

(b) Yes, the data supports the statement

Step-by-step explanation:

(a) The median interval is given by the interval of the (n + 1)/2 th term

The number of customers that waited at the supermarket checkout, n = 80

Therefore, the median = (80 + 1)/2 th customer = 40.5 th customer = The41st customer

From the given table, the time interval of the 41 st customer = 2 ≤ t < 4

The class interval of the median = 2 ≤ t < 4

(b) The number of customers that wait less than 6 minutes is given as follows;

32 customers weight 0 ≤ t < 2 minutes

19 customers weight 2 ≤ t < 4 minutes

20 customers weight 4 ≤ t < 6 minutes

The total number of customers that wait less than 6 minutes = 32 + 19 + 20 = 71 customers

The percentage of customer that wait less than 6 minutes = 74/80 × 100 = 92.5% ≈ 90%

Therefore, the data supports the manager's statement that (approximately) 90% of the customers wait less than 6 minutes

Answer:

A.

Step-by-step explanation:

D: there is no square root

for both C and B there is no decimal.

A should end up being y=-8x+5 which is in y=mx+b form

The acceptable conclusions to a hypothesis test are option a, c, d, f.

What is hypothesis test?

Hypothesis Testing is a way of statistical analysis in which a person can  put his assumptions about a population parameter to the test. It usually  used to estimate the relationship between two statistical variables.

By the property of hypothesis test the following can be stated.

⇒The value of the test statistic lies in the non rejection region. Therefore, there is no evidence to suggest that the alternative hypothesis is true.

⇒ The value of the test statistic lies in the rejection region. Therefore, there is evidence to suggest that the null hypothesis is not true.

⇒The value of the test statistic does not lie in the rejection region. Therefore, there is no evidence to suggest that the alternative hypothesis is true.

⇒ The value of the test statistic lies in the rejection region. Therefore, there is evidence to suggest that the alternative hypothesis is true.

Hence the correct options are a, c, d, f.

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Answer:

is there any thing else in that question

2/221 is the probability that a 2-card hand has two queens, two kings, or one of each.

Now, calculate the probability as follows:

Then, it can be either KK or QQ.

So required probability = 2king or 2 queen

Therefore, the probability that a 2-card hand (drawn from a standard deck of 52) has two queens, two kings, or one of each is 2/221.

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Answer: A origin

Step-by-step explanation:

Answer:

Yes, the scale factor is 0.6 repeating, or 0.7.

Step-by-step explanation:

You find the scale factor by dividing the smaller sides by the corresponding larger ones.

12/18 = 0.6 repeating

14/21 = 0.6 repeating

16/24 = 0.6 repeating

These triangles could be similar by SSS or SAS or ASA I think since congruent angles are shown in both triangles as well.

For solving this problem we have to know the transformations between feeds and kilometers and seconds to hours:

Now we can make the transformation:

The set of mobile gaming apps in which the number of monthly users was greater than 12 million is {A, B}

A set is a collection of distinct objects, called elements or members, that are brought together by a common property or rule.

Sets can be represented using set notation, which uses curly brackets {} to enclose the elements of the set. For example, the set of natural numbers less than 5 can be represented as {1, 2, 3, 4}.

The set of mobile gaming apps in which the number of monthly users was greater than 12 million can be determined by checking given the table for mobile gaming apps with value greater than 12 million.

You will notice that only A and B have values greater than 12 million. That is 23 million and 13 million for A and B respectively.

Thus, the set will be {A, B}

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Please Mark as brainlist ..........

Answer:

Step-by-step explanation:

If moving due west is +16, then moving due east is going to cover up for -16 and an additonal -2 to the east. which sums up to -18. Therefore -18 is 2units to the east.

They are used in navigation, astronomy, and surveying. Rays are also used in computer graphics, physics, and optics. In addition, rays are used in the study of optics to describe the behavior of light as it travels through different mediums.

According to the video above, the geometric object called a ray has the characteristics that it has one endpoint and extends in away from that endpoint without end.A ray is a line that starts at a single point and extends in one direction to infinity. Rays are commonly used in geometry to explain lines and line segments. A ray has one endpoint, called the endpoint of the ray, from which it starts. The other end of the ray continues in the direction in which it is pointed without any limit. A ray is named by using its endpoint and another point on the ray, with the endpoint first. For example, if ray A starts at point P and passes through point Q, we write the name of the ray as ray PAQ or ray QAP. Rays can be part of line segments and other geometric objects. They can also be used to explain angles and the direction of a light source. Rays are commonly used in mathematics, science, and engineering.

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The cost of the dinner without tax or tip is  $22.              

Given,

The sales tax on meals = 10%

Tip she leaved before sales tax is added = 15%

The total amount for dinner = $27.50

We have to find the cost of dinner without adding tax or tip;

Let cost of meals be x.

Then,

She pays 10% of x as a sales tax

So that brings the total up to 100% + 10% = 110%

Before paying, she pays 15% on x as her tip. The tax does not touch the tip.

So that brings the total up to 100% + 10% + 15% = 125% of this is based on x, the cost of the meal.

So 125% of x = 27.50                        

125/100 * x = 27.50                          

125/100 * 100/125x = 100/125 * 27.50

x = 100/125 * 27.50                    

x = 2750 / 125 = 22

That is, the cost of the dinner without tax or tip is  $22.              

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Answer:

118 degrees

Step-by-step explanation:

To solve this, you need to know some things.

There are 180 degrees in a straight line, and 180 degrees in a triangle (or a few other polygons).

If there are 180 degrees in a triangle, we can subtract the given degrees to find the missing degree.

180- 85 - 33 = 62

We can subtract that from 180 again, because we want to find the angle of the other side of the straight line of DAC, which is called supplementary angles (when two angles add up to 180 degrees or a straight line).

180 - 62 = 118

DAB is 118.

The answers obtained after correctly using the identities is given by,

if cosθ=0.9 and sinθ=0.7, then tan(−θ)= -7/9. If sinθ=1/4​, then -sin(−θ)= 1/4.

For the first question,
If cosθ=0.9 and sinθ=0.7, then tan(−θ)=?

We can use the identity tanθ = sinθ/cosθ.
Since tan(−θ) = -tanθ, we have tan(−θ) = -sinθ/cosθ.
Plug in the given values for sinθ and cosθ,
tan(−θ) = -0.7/0.9
Simplify the expression,
tan(−θ) = -7/9

For the second question,
If sinθ=1/4​, then -sin(−θ)=?

We can use the identity sin(-θ) = -sinθ.
Plug in the given value for sinθ,
-sin(−θ) = -(-1/4)
Simplify the expression,
-sin(−θ) = 1/4

So, if cosθ=0.9 and sinθ=0.7, then tan(−θ)= -7/9. If sinθ=1/4​, then -sin(−θ)= 1/4.

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The surface area of the cone will be 29.97 square centimeters.

Given that:

Diameter, d = 11 cm

Slant height, l = 7.2 cm

The radius of the base circle of the cone is calculated as,

r = d / 2

r = 11 / 2

r = 5.5 cm

Let l be the slant height of the cone and A be the base area of the cone. The surface area of the cone will be given as,

Surface area = πr (l + r)

The surface area of the cone is given as,

SA = 3.14 x 5.5 x (7.2 + 5.5)

SA = 17.27 x 12.7

SA = 29.97 square cm

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Answer:

B.

Step-by-step explanation:

ABC ≅ XYZ

∠A≅∠X

∠B≅∠Y

∠C≅∠Z

Also, should be

AB =XY

BC=YZ

CA=ZX

By ASA, ∠A≅∠X, AB =XY, ∠B≅∠Y.

Answer B.

The lowest score that Keiko is trying to score to get in the "ryo" range is , the inequality to represent this story is (x+85+57+78)/4 > 70  .

In the question ,

it is given that

Keiko need to score average above 70 to get in the ryo range

let x be the marks that Keiko scores in the next test ,

so, the average = (x+85+57+78)/4

According to the question

Average > 70

Substituting the value of average , the inequality becomes

(x+85+57+78)/4 > 70

x+85+57+78 > 280

x+220 > 280

x > 280-220

x > 60

the lowest score that Keiko should get is greater than 60 .

When the inequality x > 60 , will be graphed then the limit will be an open circle as equal to sign is not included in the inequality .

as when the numbers increases , it move towards right side

So, When the inequality is graphed, the line will have an arrow pointing towards the right .

Therefore , the lowest score that Keiko is trying to score to get in the "ryo" range is , the inequality to represent this story is  greater than 60 ,

the inequality to represent this story is (x+85+57+78)/4 > 70 ,

the limit of graph will be open circle and arrow will be pointing towards right .

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The inverses modulo m for the given pairs of relatively prime integers are:

a) Inverse of 4 modulo 9 is 1.

b) Inverse of 19 modulo 141 is 1.

c) Inverse of 55 modulo 89 is 1.

d) Inverse of 89 modulo 232 is 1.

To find the inverse of a modulo m for each pair of relatively prime integers, we can use the Extended Euclidean Algorithm. The inverse of a modulo m is a number x such that (a * x) mod m = 1.

a) For a = 4 and m = 9:

We need to find the inverse of 4 modulo 9.

Using the Extended Euclidean Algorithm, we have:

9 = 2 * 4 + 1

4 = 4 * 1 + 0

The last nonzero remainder in the algorithm is 1. So, the inverse of 4 modulo 9 is 1.

b) For a = 19 and m = 141:

We need to find the inverse of 19 modulo 141.

Using the Extended Euclidean Algorithm, we have:

141 = 7 * 19 + 8

19 = 2 * 8 + 3

8 = 2 * 3 + 2

3 = 1 * 2 + 1

2 = 2 * 1 + 0

The last nonzero remainder in the algorithm is 1. So, the inverse of 19 modulo 141 is 1.

c) For a = 55 and m = 89:

We need to find the inverse of 55 modulo 89.

Using the Extended Euclidean Algorithm, we have:

89 = 1 * 55 + 34

55 = 1 * 34 + 21

34 = 1 * 21 + 13

21 = 1 * 13 + 8

13 = 1 * 8 + 5

8 = 1 * 5 + 3

5 = 1 * 3 + 2

3 = 1 * 2 + 1

2 = 2 * 1 + 0

The last nonzero remainder in the algorithm is 1. So, the inverse of 55 modulo 89 is 1.

d) For a = 89 and m = 232:

We need to find the inverse of 89 modulo 232.

Using the Extended Euclidean Algorithm, we have:

232 = 2 * 89 + 54

89 = 1 * 54 + 35

54 = 1 * 35 + 19

35 = 1 * 19 + 16

19 = 1 * 16 + 3

16 = 5 * 3 + 1

3 = 3 * 1 + 0

The last nonzero remainder in the algorithm is 1. So, the inverse of 89 modulo 232 is 1.

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Answer:

B

Step-by-step explanation:

It is saying the same thing as 18-7 just in the parenthesis (-7).

Answer:

B. 18+(-7)

Hope this helps!!!!!!

To prove that △FGE ~ △IJH by the SAS (Side-Angle-Side) similarity theorem, we need additional information. The given information states that segment FG is congruent to segment JI, segment IF is congruent to segment JF, and segment GE is congruent to segment IH. However, this information alone is not sufficient to prove similarity.

In order to establish similarity using the SAS similarity theorem, we need to show that the corresponding angles of the triangles are congruent as well. Therefore, we need to know the measure of at least one angle in each triangle, in addition to the given congruent sides.

For example, if we are given that angle F is congruent to angle J and angle G is congruent to angle H, along with the given congruent sides, we can apply the SAS similarity theorem to prove the similarity of △FGE and △IJH.

So, the missing information required to prove the similarity of the triangles is the congruence of at least one angle in each triangle.

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Answer:

14

Step-by-step explanation:

You need to count by 4´s. So:

4, 8, 12, 16, 20.

3, 6, 9, 12, 14.

I lined them up for you to understand it easier

Answer:

62.6 and 62r15

Step-by-step explanation:

Answer:

What do you want me to divide

Step-by-step explanation:

Please tell me

Step-by-step explanation:

X<-3 Inequality form , [XIX <-3]

1. Affordably presented by objects or environments, such as a ball providing the opportunity to practice grasping, throwing, and catching.
2. Individuals perceive these affordances and decide to engage with them, based on their current motor abilities and developmental stage.
3. Through interacting with affordances, individuals practice and develop their motor skills by attempting, refining, and mastering the actions associated with affordance.

Affordably is a term used to describe the relationship between an individual's perception of their environment and their ability to interact with it. In terms of motor development, affordances refer to the opportunities for movement that the environment presents. These opportunities can be both physical and social and can include objects to manipulate, spaces to explore, and people to interact with.

The concept of affordance is important for motor development because it provides children with opportunities to practice and refine their motor skills. As children explore their environment, they are able to perceive the various affordances that it presents, and they can use these affordances to develop their motor skills.

For example, a child may perceive that a box can be used as a stepping stool, and they may use this affordance to climb up onto a table. In doing so, they are developing their balance, coordination, and strength. Similarly, a child may perceive that a ball can be thrown, caught, and bounced, and they can use these affordances to develop their hand-eye coordination, spatial awareness, and timing.

Overall, affordance plays an important role in motor development by providing children with opportunities to explore and interact with their environment and to develop their motor skills in the process.
Affordance contributes to motor development by providing opportunities for individuals to interact with their environment, which in turn helps them develop and refine their motor skills. Affordance refers to the potential actions or uses that an object or environment provides to an individual. In the context of motor development, affordances can be seen as opportunities for practicing and enhancing motor abilities.


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The percentage of the new quantity in letter b is 40% and the Percentage of the new quantity in letter c is 76%.

A percentage, often known as percent, is a division by 100. Percentage, which means "per 100," designates a portion of a total sum.

Given data:

letter b: Original Quantity: 20 new quantity: 8

letter c: original quantity: 50 new quantity: 38

Calculate the percentage as shown below,

Percentage of new quantity in letter b = new quantity / Original Quantity × 100

Percentage of new quantity in letter b = 8 / 20 × 100 = 40%

Percentage of new quantity in letter c = new quantity / Original Quantity × 100

Percentage of new quantity in letter c = 38 / 50 × 100 = 76%

Therefore, the percentage of the new quantity in letter b is 40% and the Percentage of the new quantity in letter c is 76%.

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Answer:

(- 4, 2 )

Step-by-step explanation:

x + 5y = 6 → (1)

x + 3y = 2 → (2)

subtract (2) from (1) term by term to eliminate x

(x - x) + (5y - 3y) = 6 - 2

0 + 2y = 4

2y = 4 ( divide both sides by 2 )

y = 2

substitute y = 2 into either of the 2 equations and solve for x

substituting into (1)

x + 5(2) = 6

x + 10 = 6 ( subtract 10 from both sides )

x = - 4

solution is (- 4, 2 )

Answer:

4.5

Step-by-step explanation:

First things first - the triangle OCB is similar to ODB - because they are symmetrically reflected over OB. They are also both right triangles, because the tangent is perpendicular to the corresponding radius.

BD = BC

We also know that (because it's a right triangle):

\(OB = \sqrt{OC^2 + BC^2}\\\\5.3 = \sqrt{2.8^2 + BC^2}\\\\5.3^2 = 2.8^2 + BC^2\\\\BC = \sqrt{5.3^2 - 2.8^2} = \sqrt{28.09 - 7.84}= \sqrt{20.25} = 4.5\\\\BD = BC = 4.5\)