A dental hygienist is a health-care professional who works alongside a dentist to meet the oral health care needs of patients. Asked by one of her clients who needs to get a cavity filled what the average number of cavities a person gets filled by the time they are 50 years old, the hygienist responds that she will gather and determine not just the average, but also the median and the mode - because she would like to know this information herself. A bit of research turns up the following data table taken from a research project of a graduate student. The graduate student surveyed 20 people aged 50 from around Idaho.

Patient ID# Cavities Filled
1 1
2 8
3 7
4 9
5 11
6 12
7 7
8 5
9 2
10 0
11 8
12 9
13 7
14 6
15 8
16 9
17 8
18 9
19 8
20 8

a. What is the mean (average) number of cavities a person gets filled by age 50?
b. What is the median number of cavities a person gets filled by age 50?
c. What is the most often an occurring number of cavities filled in this data set?

Answer: x doesn't equal four x would have to equal -5 because it cant before because it would be a zero and there would be no solution

Step-by-step explanation: brainliest plz

Answer:

ok

Step-by-step explanation:

Answer:

23

Step-by-step explanation:

1)  (10*0.5)+(-6*-3)

2) (5)+(18) (The 18 isn't negative because of the rule that states "A negative and a negative will become positive"

3) 5+18=23

Answer:

11....................

Answer:

11

Step-by-step explanation:

Answer: 0.44

Step-by-step explanation:

First, let's count the total number of four-digit numbers.

Let's think it as four empty slots:

_ _ _ _

In each slot, we can put a single digit.

In the first slot, we have 9 options {1, 2, 3, 4, 5, 6, 7, 8, 9}

The zero is not an option here, because if there was a 0, this would be a 3 digit number, then the 0 can not be in the first slot.

For the second slot we have 10 options {0, 1, 2, 3, 4, 5, 6, 7, 8, 9}

for the third slot we have 10 options {0, 1, 2, 3, 4, 5, 6, 7, 8, 9}

for the fourth slot we have 10 options {0, 1, 2, 3, 4, 5, 6, 7, 8, 9}

The total number of combinations is equal to the product between the numbers of options for each slot, this means that we have:

Combinations = 9*10*10*10 = 9000

So there are 9000 different 4 digit numbers.

Now we want to find the probability of selecting a number at random that is equal or smaller than 5000.

Let's see the number of 4-digit numbers that are equal or smaller than 5000.

The smallest 4-digit number is 1000.

Then the number of numbers between 1000 and 5000 is:

5000 - 1000 = 4000

This means that there are 4000 4-digit numbers that are equal or smaller than 5000.

Now, the probability of selecting one of them at random is equal to the quotient between the number of 4-digit numbers that meet the condition (4000) and the total number of 4-digits (9000)

Then te probability is:

P = 4000/9000 = 4/9 = 0.44

T

Answer:

what is the question?

Step-by-step explanation:

all u have is the numbers

Answer:

i think the number is 117

2

Answer:

2744

Step-by-step explanation:

8 divided by 2 is 4

10 + 4 is 14

and 3rd power is 14x14x14

which is 2744

Answer:74

Step-by-step explanation:

74

Answer:

You first have to work out T O U and the answer will be a negative. This means that it will be within another angle

Answer: C 64

Step-by-step explanation:

Answer:

Step-by-step explanation:

area of a whole circle is pi [tex]r^{2}[/tex]

diameter is 2*r

1/2 * pi * [tex]6^{2}[/tex]   will find the area of 1/2 of the circle that has a diameter of 12'

56.54866 '

so approx  60 ft

Answer:

7/10 goes in one of those boxes

Answer:

the very left box is 3/4

the bottom one is 9/20

the right one is 7/10

Answer:

-10n - 12.5

General Formulas and Concepts:

Pre-Algebra

Distributive Property

Order of Operations: BPEMDAS

Algebra I

Step-by-step explanation:

Step 1: Define

-2.5(-3 + 4n + 8)

Step 2: Simplify

For simplifying an expression, there are some rules about the order in which the calculations should be performed. The order of rules is called BODMAS. Each letter in this word stands for an operation.

→ -2.5(-3 + 4n + 8) = 0

→ 7.5 + (-10n) + (-20) = 0

→ 7.5 - 10n - 20 = 0

→ -10n - 20 + 7.5 = 0

→ -10n - 12.5 = 0

→ -10n = 12.5

→ n = 12.5 ÷ -10

→ n = -1.25

Answer:

The x-value at which the two functions' values are equal is 5.

Step-by-step explanation:

Let [tex]f(x) = 3[/tex] and [tex]g(x) = x-2[/tex], if [tex]f(x) = g(x)[/tex], then:

[tex]x - 2 = 3[/tex]

[tex]x = 3+2[/tex]

[tex]x = 5[/tex]

The x-value at which the two functions' values are equal is 5.

Answer:

a

Step-by-step explanation:

hope this help mark me brainlist plz

The correct sequence of transformations takes A to its image A' is,

⇒ A translation 1 unit down followed by a reflection in the x-axis.

A transformation that occurs when a figure is moved from one location to another location without changing its size or shape is called translation.

We have to given that;

The sequence of transformations takes A to its image A'.

Now, We have;

The coordinate of A are (4, 5)

And, The coordinate of A' are (4, - 4)

Hence, The correct sequence of transformations takes A to its image A' is,

⇒ A translation 1 unit down followed by a reflection in the x-axis.

Learn more about the transformation visit:

https://brainly.com/question/30097107

#SPJ3

Answer:

1. 7578

2. Multiply

3. Because area is equal to length time width.

Step-by-step explanation:

hope this helps

Answer:

0

Step-by-step explanation:

it's divided evenly with no remainder

Answer:

The answer is below

Step-by-step explanation:

Acceleration is the time rate of change in velocity. Acceleration is given by:

Acceleration = change in velocity / time taken

Acceleration = (final velocity - initial velocity) / time

1) The Ferrari is from rest, hence initial velocity = 0. The final velocity = 100 km/h = [tex]\frac{100\ km*1000\ \frac{m}{km} }{1\ hr*\frac{3600\ s}{1\ hr} } =27.78\ m/s[/tex], time = 5 s

Acceleration = (0 - 27.78) / 5 = 5.56 m/s²

2) The car has initial velocity = 10 m/s. The final velocity = 10 m/s since velocity is constant. time = 20 s

Acceleration = (10 - 10) / 20 = 0 m/s²

3) The ball has initial velocity = 12 m/s. The final velocity = 0 m/s since it stops. time = 36 s

Acceleration = (0 - 12) / 36 = -0.33 m/s²

Answer:

6z

Step-by-step explanation:

Answer:

x = 4

Step-by-step explanation:

-18 = -5x-(-2)

-18 = -5x+2

5x-18 = 2

5x = 2+18

5x = 20

[tex] \frac{5x}{5} = \frac{20}{5} [/tex]

[tex]x = 4[/tex]

Answer:

c

Step-by-step explanation:

divide 1/5,280 and then multiply that by 6,600

Answer:

the answer is c

Step-by-step explanation:

multiply 6,600 by 1 and that will give you 6,600 again

after that you divide 6,600 and 5,280 that will get you 1.25

if you think I'm wrong just do it on the calculator it will give you 1.25

have a nice day!!

Answer:

associative, commutative, no, multipolication by 1 (don know what that is called),  commutative, no, adding by 0, no

Step-by-step explanation:

3 and 6 are no because subtraction is not associative

and 8, well 0+12 is not 0

Answer:

37.46

Step-by-step explanation:

I think not sure tho

Answer:

Y=2x-2

Step-by-step explanation:

Slope intercept form is also known as y=mx+b

The slope of a line is rise over run. In this case that would be 2/1 which simplifies to 2

The intercept is where the line crosses the y axis, which is at -2

So your equation would be y=2x-2

Answer:

im here for the points

Step-by-step explanation:

im here for the points

Answer:

(D): (-1,-6)

Step-by-step explanation:

Given

[tex](x_1,y_1) = (-2,-5)[/tex]

[tex]m = -1[/tex]

Required

Find [tex](x_2,y_2)[/tex]

Slope (m) is calculated using:

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

Substitute values for m, x1 and x2

[tex]-1 = \frac{y_2 -(-5)}{x_2 - (-2)}[/tex]

[tex]-1 = \frac{y_2 +5}{x_2 +2}[/tex]

Cross Multiply:

[tex]-1(x_2 +2) = y_2 +5[/tex]

[tex]-x_2 -2 = y_2 +5[/tex]

Make y the subject

[tex]y_2 = -x_2 - 2 - 5[/tex]

[tex]y_2 = -x_2 - 7[/tex]

Only (D): (-1,-6) satisfy this condition:

Substitute -1 for x2 and -6 for y2.

[tex]-6 = -(-1) - 7[/tex]

[tex]-6 = 1- 7[/tex]

[tex]-6 =- 6[/tex]

Hence:

(D): (-1,-6) is true

Answer:

94

Step-by-step explanation:

Given the addition problem:

58 + 36

We can form a table :

5 _______ 8

+

3 _______ 6

9 4

Hence, (58 + 36) = 94

Question:

Lisa walks at an average speed of  6 km/h for 15 hours.

Dan completes the same distance in  an hour.  Calculate Dan's average speed.​

Answer:

[tex]Speed = 90km/hr[/tex]

Step-by-step explanation:

Given

Lisa:

[tex]Speed = 6km/hr[/tex]

[tex]Time = 15\ hr[/tex]

First, we calculate the distance covered by Lisa:

[tex]Distance = Speed * Time[/tex]

[tex]Distance = 6km/hr * 15\ hr[/tex]

[tex]Distance = 90km[/tex]

So, Dan distance can be represented as:

[tex]Distance = 90km[/tex] --- Dan completes the same distance as Lisa

[tex]Time = 1\ hr[/tex] -- Time to complete the distance

Dan's average speed is:

[tex]Speed = \frac{Distance}{Time}[/tex]

[tex]Speed = \frac{90km}{1\ hr}[/tex]

[tex]Speed = 90km/hr[/tex]

Hence, Dan's average speed is 90km/hr

Answer:

3n+6

Step-by-step explanation: