According to the american dental association, 8% of adults have never had a cavity. A dental graduate student contacts an srs of 1000 adults and calculates the proportion p in this sample who have never had a cavity

Answer:

http://web.mnstate.edu/peil/MDEV102/U4/S36/S363.htmlStep-by-step explanation:

Answer:

First quartile: 35

Third Quartile: 46

Step-by-step explanation:

Answer:

number 3.

reason- you can compare urban and rural in 2000 and tell there are more urban people.

Amanda would use 3 planks of lengths 3 feet, 5 feet, and 6 feet.

To determine which planks Amanda should use to build the triangular-shaped kennel:

Therefore, Amanda would use 3 planks of lengths 3 feet, 5 feet, and 6 feet.

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Answer:

  C. Vertical angles

Step-by-step explanation:

Given angles 5 and 8 where line c crosses line a, you want to know what type they are.

Where two lines cross, four angles are formed. They all share the vertex point where the lines intersect. If they share a side (and no interior space), they are adjacent angles that form a linear pair. As such, they are supplementary.

In the given figure the supplementary angle pairs where line c crosses line a are ...

  (5, 6), (6, 8), (7, 8), (5, 7)

If the angles do not share a side, but are formed from opposite rays, they are "vertical angles" and are congruent.

The vertical angle pairs there are ...

  (5, 8), (6, 7)

Angles 5 and 8 are vertical angles, choice C.

__

Additional comment

Angle pairs (1, 8) and (2, 7) are "alternate exterior angles." Angle pairs (3, 6) and (4, 5) are "alternate interior angles."

Assuming lines b and c are parallel, considering also angles where line b crosses line a, there are additional supplementary pairs of angles:

  (1, 2), (2, 4), (3, 4), (1, 3), (1, 6), (1, 7), (2, 5), (2, 8), (3, 5), (3, 8), (4, 6), (4, 7)

When parallel lines are crossed by a transversal, all of the acute angles are congruent, all of the obtuse angles are congruent, and the acute angles are supplementary to the obtuse angles. The angles are referred to by different names (and different theorems), depending on where they are in relation to the transversal and the parallel lines.

The problem here is mostly concerned with vocabulary. The "how to do this" is "learn the vocabulary."

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To find the moments \(\(M_x\) and \(M_y\)\) and the center of mass \(\((x, y)\)\) of the system, we can use the formulas:

\(\(M_x = \sum_i m_i y_i\)\)

\(\(M_y = \sum_i m_i x_i\)\)

\(\(x = \frac{M_y}{\sum_i m_i}\)\)

\(\(y = \frac{M_x}{\sum_i m_i}\)\)

Given the following information:

\(\(m_1 = 2, m_2 = 1, m_3 = 7\)\)

\(\(P_1(2, -5), P_2(-3, 3), P_3(3, 5)\)\)

We can calculate the moments \(\(M_x\)\) and \(\(M_y\)\) as follows:

\(\(M_x = (m_1 \cdot y_1) + (m_2 \cdot y_2) + (m_3 \cdot y_3)\)\)

\(\(M_y = (m_1 \cdot x_1) + (m_2 \cdot x_2) + (m_3 \cdot x_3)\)\)

Substituting the given values, we have:

\(\(M_x = (2 \cdot -5) + (1 \cdot 3) + (7 \cdot 5) = -10 + 3 + 35 = 28\)\)

\(\(M_y = (2 \cdot 2) + (1 \cdot -3) + (7 \cdot 3) = 4 - 3 + 21 = 22\)\)

To find the center of mass, we divide \(\(M_x\)\) and \(\(M_y\)\) by the sum of the masses:

\(\(x = \frac{M_y}{m_1 + m_2 + m_3} = \frac{22}{2 + 1 + 7} = \frac{22}{10} = 2.2\)\)

\(\(y = \frac{M_x}{m_1 + m_2 + m_3} = \frac{28}{2 + 1 + 7} = \frac{28}{10} = 2.8\)\)

Therefore, the moments and the center of mass of the system are:

\(\(M_x = 28\)\)

\(\(M_y = 22\)\)

\(\((x, y) = (2.2, 2.8)\)\)

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Step-by-step explanation:

a+b = 33

a-b = 27

______+

2a = 60

a = 30

b = 33-30 = 3

so, the numbers are : 30 and 3

Answer: y = -7x-2

Step-by-step explanation:

Perpindicular lines always have the opposite reciprocal of the original line's slope. so the opposite reciprocal of 1/7 is -7, and the reason why I put the -2, is because -7(-1) +2 = 5, which creates the coordinate (-1,5).

Answer: in point slope form, the equation would be:

(y-8)=-1/3(x+12)

in slope-intercept form, the equation would be:

y=-1/3x+4

hope this helps! :)

Step-by-step explanation:

Answer:

p = -8

Step-by-step explanation:

Step 1: Write equation

7(p + 3) + 9 = 5(p - 2) - 3p

Step 2: Solve for p

Step 3: Check

Plug in x to verify it's a solution.

Answer: 0.11

Step-by-step explanation:

Suppose y represents the cost, x represents the number of pictures, then y=kx {positive proportional function}

when x=50, y=5.5

5.5=50k

k=5.5/50

k=55/500

k=0.11

Answer:

c + 10 = 3

Step-by-step explanation:

Answer:

7.5

Step-by-step explanation:

The values 15ft, 13ft and x are the sides of a right triangle;

According to pythagoras theorem;

15² = 13²+x²

x² = 15² - 13²

x² = 225 -169

x² = 56

x = √56

x = 7.48

Hence the value of x to the nearest tenth is 7.5 to the nearest tenth

Solution:

Note that:

Converting the time (minutes to seconds) for Vaimiti to reach school:

Converting the time (minutes to seconds) for Jabril to reach school:

Finding the distance of Vaimiti:

Important: The distance will be in meters since the speed units is meters/seconds.

Finding the distance of Jabril:

Important: The distance will be in meters since the speed units is meters/seconds.

This can lead to two possible solutions:

Possible solution #1:

Finding the difference between the two distances:

Possible solution #2:

The difference between the distances they walked is that Jabril walked faster than Vaimiti, but Vaimiti reached school earlier than Jabril because the walking distance for Vaimiti is less than the walking distance for Jabril.

Hoped this helped!

To solve this we first of all need to find the distances travelled by both Vaimiti and Jabril and then we will find their difference...

Let's start solving ~

:-:-:-:-:-:-:-:-:-:-:-:-:-:-:-:-:-:-:-:-:-:-:-:-:-:-:-:-:-:-:-:-:-:-:-:-:-:-:-:-:-:-:-:-:-:-:-:

\( \tt \leadsto \: Distance = Speed × Time\)

\( \sf \leadsto \: Distance = 1.1 \times 1500\)

\( \boxed{ \rm\multimap \: Distance = 1650 \: m}\)

\(\red{ \rule{35pt}{2pt}} \orange{ \rule{35pt}{2pt}} \color{yellow}{ \rule{35pt} {2pt}} \green{ \rule{35pt} {2pt}} \blue{ \rule{35pt} {2pt}} \purple{ \rule{35pt} {2pt}}\)

\( \tt \leadsto \: Distance = Speed × Time\)

Time taken by her = 30 minutes = 30×60 = 1800 seconds

\( \sf \leadsto \: Distance = 1.3\times 1800\)

\( \boxed{ \rm\multimap \: Distance = 2340 \: m}\)

\(\rule{300pt}{3pt}\)

\( \bf\nRightarrow \: Difference = 2340 - 1650\)

\( \bf \nRightarrow \: Difference = 690 \: m\)

➪ Therefore, The difference between distance travelled by them is 690 meter...~

Answer:

1.2+0.75=1.95 pounds

Step-by-step explanation:

33% of cold-working has been done if a brass strip previously cold rolled 33% is now 2.0-in thick and is then cold rolled further to 1.50-in.

First, we need to calculate the initial thickness of the brass strip before it was cold-rolled. We can do this by taking 33% of the final thickness of 2.0-in. This gives us an initial thickness of 0.66 in.

Next, we need to calculate the change in thickness after cold-rolling. We can do this by subtracting the final thickness of 1.50 in from the initial thickness of 0.66 in. This gives us a change in thickness of -0.16-in.

Finally, we need to calculate the percentage of cold work done. We can do this by taking the change in thickness and dividing it by the initial thickness and multiplying by 100. This gives us a percentage of cold-working of -33%.

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Answer:

Mark is currently 22 years old; if you add 8 years to 22, he will be 30 years old.

Step-by-step explanation:

hope this helps:) please mark brainliest.

Answer:

he would be 30

Step-by-step explanation:

i

The new pressure of the gas from the calculation is 51223 torr.

The gas laws are a set of fundamental principles that describe the behavior of gases under different conditions. They relate the variables of pressure, volume, temperature, and the amount of gas.

These gas laws provide a framework for understanding and predicting the behavior of gases in various situations and allow for calculations involving pressure, volume, temperature, and the amount of gas.

Using;

P1V1/T1 = P2V2/T2

P1V1T2 = P2V2T1

P2 = P1V1T2/V2T1

P2 = 710 * 5.0 * 10^2 * 1093/303 * 25

= 51223 torr

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98879Answer:898987

ytf56r5ytr76trt

Step-by-step explanation:

In an electrical system, components of categories I and II have a life expectancy measured in hundreds of hours, respectively. The probability of finding the combined density of Y1 and Y2 is equal to e^(−2).

The components of type I and type II, respectively, have random life spans denoted by the letters Y1 and Y2, respectively. Given by is the joint density function (Measurements are in hundreds of hours.)

Probability P(Y1 > 1, Y2 > 1) = ∫2¹∫1¹ (1/2)e^(−x−y) dx dy = e^(−2).

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Answer:

10cm -4cm=6cm

Step-by-step explanation:

answer=6cm

A random variable is a variable that takes on values that are uncertain or probabilistic in nature.

Therefore, the correct option is a) A variable that takes on values that are uncertain.

Random variables can be discrete, meaning they can only take on specific values, or continuous, meaning they can take on any value within a certain range.

These variables are commonly used in statistical analyses and probability theory to model various phenomena, such as the outcome of a dice roll or the height of individuals in a population.

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Triangle abc is congruent to triangle edf. So, priya knows that there is a sequence of rigid motions that takes abc to edf. From the rigid transformation that takes ABC to EDF, the coinciding parts based on congruency; are matched below.

Triangle congruence is when two triangles are said to be congruent to one another, it signifies that their corresponding sides and angles are equal.

Consequently, we can state that if triangle ABC and triangle EDF are congruent;

Angle A ≅ Angle E

Angle B ≅ Angle D

Angle C ≅ Angle F

Segment AB ≅ Segment ED

Segment AC ≅ Segment EF

Segment BC ≅ Segment DF

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Answer:

115.2 total marks.

Step-by-step explanation:

If 72 is only 60% of the total marks, then to find the total number of marks we will need to multiply 72 by 60% to find the remaining marks, then add that back to 72.

72 × 0.6 = 43.2 remaining marks.

72 + 43.2 = 115.2 total marks.

The total number of marks in the test ​ is 115.2 total marks.

The unitary method is a method for solving a problem by the first value of a single unit and then finding the value by multiplying the single value.

We have been given that paul got 72 marks in a maths test. 72 marks is 60% of the total number of marks.

When 72 is only 60% of the total marks, then to find the total number of marks.

We will need to multiply 72 by 60% to find the remaining marks, then add that back to 72.

Then, 72 × 0.6 = 43.2 remaining marks.

72 + 43.2 = 115.2 total marks.

Hence, The total number of marks in the test ​ is 115.2 total marks.

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Answer:

its A

Step-by-step explanation:

asymptotes:=-1 and hole:x=4

Problem 1, part (a)

For instance, 200 feet in real life can be reduced to scale down to say 2 inches on paper. So we have a reduction going on, and not an enlargement.

====================================================

Problem 1, part (b)

This is because a scale drawing involves similar polygons. This is true whenever any dilation is applied.

====================================================

Problem 2

I'm not sure how your teacher wanted you to answer this question. S/he didn't give you any numbers for the side lengths of the polygon. The angle measures are missing as well.

Answer:

There are 2 solutions to square root x = 9

They are 3, and -3

Step-by-step explanation:

The square root of x=9 has 2 solutions,

The square root means, for a given number, (in our case 9) what number times itself equals the given number,

Or, squaring (i.e multiplying with itself) what number would give the given number,

so, we have to find the solutions to \(\sqrt{9}\)

since we know that,

\((3)(3) = 9\\and,\\(-3)(-3) = 9\)

hence if we square either 3 or -3, we get 9

Hence the solutions are 3, and -3

Answer:

80

Step-by-step explanation:

180 - 100 = 80

Answer:

d and h are the same so you will have 200cm divide that by 90 and covert the decimal into a fraction

Step-by-step explanation:

trust me i got it right

Answer:

-27 + -13 = -40

Step-by-step explanation:

Answer:

The answer for radius is 5cm

Step-by-step explanation:

Volume of Cylinder =pir²h

225pi=pir²×9

225=9r²

divide both sides by 9

9r²/9=225/9

r²=25

√r²=√25

r=5cm