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Question 4
1 pts
"How many times per week do you brush your teeth?"
The summary statistics for a random sample of 40 were as follows: the sample mean was 13,275 and
the sample standard deviation was 5,883,
Does this data suggest that the true mean number of teeth brushings for SoCal college students
differs from 14 per week?
Test at the 10% level of significance,

Answers

Answer 1

Answer:

twice a day

Step-by-step explanation:

morning and bed time


Related Questions

Sketch a figure that is similar to this figure. Label side and angle measures.

Answers

Step-by-step explanation:

Similar figures have different side lengths but corresponding angles are congruent.

The figure you sketch will have side length:

s = 12k, where k is the scale factor

When k > 1, you sketch a larger figure, when 0 < k < 1, you sketch a smaller figure than pictured.

See attached, the two figures, one has side of 18 when k = 1.5, another one has side of 6, when k = 0.5

Rosa put an “blank” cream on the cut on her finger to keep germs out of it

1- interlocking
2-antimedicine
3-antiseptic
4- interrelated

Answers

3- antiseptic is a denoting substances that prevent the growth of disease-causing microorganisms.

Rosa put an antiseptic cream on the cut on her finger to keep germs out of it.

An antiseptic is a substance that prevents the growth and development of microorganisms, such as bacteria, on living tissues.

When Rosa applied antiseptic cream to her cut finger, she aimed to create an environment hostile to germs. This action helps prevent infections and promotes the healing process.

The term antiseptic is derived from the Greek words "anti," meaning against, and septikos, meaning putrefying. Antiseptics are commonly used for cleaning wounds, disinfecting surfaces, and maintaining personal hygiene. They are milder than disinfectants, which are typically used on inanimate objects.

Rosa's choice of an antiseptic cream demonstrates her understanding of the importance of wound care. The cream likely contained substances that inhibit bacterial growth, such as hydrogen peroxide or iodine. By applying the antiseptic cream, Rosa effectively created a barrier against potential infections. It's crucial to clean and treat cuts promptly, as untreated wounds can lead to more severe health issues.

In summary, the use of an antiseptic cream by Rosa showcases her responsible approach to wound care. Antiseptics play a vital role in preventing infections and supporting the body's natural healing process. By applying an antiseptic cream, Rosa took a proactive step in safeguarding her health and ensuring the well-being of her injured finger.

To know more about Antiseptic here

https://brainly.com/question/10587479

#SPJ3

NOTE: This is not a Question of Mathematics its from Biology

helpppppppppp meeeee

Answers

Answer:

4.5

Step-by-step explanation:

4.5 ft of ribbon because you divide 11.25 by 2.5 and then that’s what you get

-3w+15w+7=8w+43 what does w equal?

Answers

Answer:

w = 9

Step-by-step explanation:

- 3w + 15w + 7 = 8w + 43 , simplifying

12w + 7 = 8w + 43 ( subtract 8w from both sides )

4w + 7 = 43 ( subtract 7 from both sides )

4w = 36 ( divide both sides by 4 )

w = 9

W=9

first, you simplify the expression.

12w + 7 = 8w + 43.

After that, we group all the w terms on the left side of the equation.

Subtract 8w from both sides:

12w + 7 - 8w = 8w + 43 - 8w

Group like terms:

12w - 8w + 7 = 8w + 43 - 8w

Simplify the arithmetic:

4w + 7 = 8w + 43 - 8w

Group like terms:

4w + 7 = 8w - 8w + 43

Simplify the arithmetic:

4w + 7 =43

Then, we group all constants on the right side of the equation

Subtract 7 from both sides:

4w + 7 - 7 = 43 - 7

Simplify the arithmetic:

4w = 43 - 7

4w = 36

Now, we isolate the w. Divide both sides by4:

4w / 4 = 36 / 4

Simplify the fraction:

w = 36/4

Find the greatest common factor of the numerator and denominator:

w = 9 × 4/1 × 4

Factor out and cancel the greatest common factor:

w = 9

PLEASE HELP ME OML

Given:

A

C





B

D



AC



BD

and



A





C

.

∠A≅∠C.


Prove:



A

B

D





C

B

D

△ABD≅△CBD.

Answers

Answer:

Step-by-step explanation:

The answer is ac

help solve please! (image)

Answers

Answer:

4

Step-by-step explanation:

[tex](20-2^{2} )[/tex] ÷ [tex](6-2)[/tex]

(20-4) ÷ 4

16 ÷ 4=4

Answer:

2

Step-by-step explanation:

Here we're "evaluating," not solving, the given expression.

Substitute -2 for x and 6 for y:

20 - (-2)^2      20 - 4

--------------- = -------------- = 16/8 = 2

(6) - (-2)              8

The value of this expression, when x = -2 and y = 6, is 2.

Answer ASAP. :) Thank you!

Answers

Answer:

c = 55

Step-by-step explanation:

I would solve this by cross multiplying, but some teachers don't appreciate you skipping a step like that. Instead:

[tex]\frac{5}{2} =\frac{c}{22}[/tex]

First, multiply both sides by 2:

[tex]5=\frac{2c}{22}[/tex]

Then, multiply both sides by 22:

[tex]2c=110[/tex]

Now, just solve for c by dividing both sides by 2:

[tex]c=55[/tex]

Answer:

C = 55

Step-by-step explanation:

To figure out c you must first isolate c so there shouldn't be any other numbers or signs (addition, subtraction, division, and multiplication) on the same side of the equal sign as variable C.

The inverse of dividing 22 is multiplying 22 on both sides of the equation.

You would get 22/1 * 5/2 = C. 22 * 5 is 110 and 1 * 2 is still 2 so 110/2 = C.

Enter 110/2 into the calculator and you would get C = 55

Which is true for all pairs of values in this table?
It’s timed help!

Answers

Substitute the y and x values on the table to the y and x value in the equations. The answer is D

how do you do this, like step by step bc I w9uld like to understand step by step so I can do it myself for future trys​

Answers

Answer:

Step-by-step explanation:

how do you do this, like step by step I w9uld like to understand step by step so I can do it myself for future  

Jackie drove 150 miles on Wednesday. This is
50 miles more than 5 times as far as she drove
on Tuesday. How far did she drive on Tuesday?

Answers

She drove 800 miles hhhhhhshdgxhxhhxbxbnxbxbxbxnbxbxbcbcbdhdhdhdbdbbd

What is the simplified ratio of:
8 weeks is to 12 days

Answers

Answer:

14:3

Step-by-step explanation:

8 weeks is 56 day. Know we have 56:12 divide those by 2 and we get 28:6

divide those by 2 and get 14:3 We cannot do anymore changes to that.

Help me please
Using a right triangle, Rafael is trying to find the height of a building. Rafael has represented the building in the figure as length SV. What is the height of the building? A) 2 2 B) 6.5 2 C) 7.5 2 D) 13 2

Answers

Answer:

i think its d but i dont know

Step-by-step explanation:

Select all ratios equivalent to 20:15
A: 56:30
B: 8:6
C: 12:9
wich one plezz help 30 points

Answers

Answer:

b and c

Step-by-step explanation:

Answer:

B and C

Step-by-step explanation:

20:15 is equal to 4:3

4:3 is equal to 8:6 (x2)

4:3 is equal to 12:9 (x3)

In this excerpt, the imagery appeals primarily to which
sense to help place the reader in the scene?
Read the excerpt from “The Scarlet Ibis."
Finally I went back and found him huddled beneath a red
nightshade bush beside the road. He was sitting on the
ground, his face buried in his arms, which were resting
on his drawn-up knees. "Let's go, Doodle," I said.
He didn't answer, so I placed my hand on his forehead
and lifted his head. Limply, he fell backwards onto the
earth. He had been bleeding from the mouth, and his
neck and the front of his shirt were stained in brilliant red.
"Doodle! Doodle!" I cried, shaking him, but there was no
answer but the ropy rain. He lay very awkwardly, with
his head thrown far back, making his vermillion neck
appear unusually long and slim. His little legs, bent
sharply at the knees, had never before seemed so
fragile, so thin.

Answers

Answer:

Step-by-step explanation:

Sight.

please anyone help!.

Answers

Step-by-step explanation:

∆JKL : ∆XYZ

XY/JK = 9/6 = 3/2

YZ/KL = x/8 = 3/2

x=(3/2)8=12

The function F(x)= x^3–3x^2+2x rises as x grows very small.
A. True
B. False

Answers

The answer is for this question is False

If a town with a population of 10000 doubles in size every 43 years, what will the population be 86 years from now

Answers

Answer:This is an exponential growth problem.  If the population doubles periodically, it follows a law like this:

P(t) = P(0)ekt

where P(0) is the initial population at time t=0, and k is a constant with units of years-1.

To find k, let t=0.  Then P(t) = P(0) = initial population = 5000.

Since the population doubles every 12 years, we can write

P(t+12) = 2P(t)

P(0)ek(t+12) = 2[P(0)ekt]

Simplifying,

e12k = 2

k = ln(2) / 12 = 0.0577623 years-1

Finally,

P(t) = 5000e0.0577623t, t in years

Then at t=48 years from now,

P(48) = 5000e(0.0577623 * 48) = 80,000

Step-by-step explanation:

John drives to work five days a week the month of August round trip between home and his job is 7.56 miles part a: estimate the total distance John drove last month when there were 21 days he went to work. Write a equation to model your work.

Answers

Answer: 113.4 miles

Step-by-step explanation:

I think this correct because 7.56 x 5 = 37.8   then 21 days is 3 weeks so 37.8 x 3 = 113.4

Type the expression that results from the following series of steps:
Start with t, subtract 6, multiply by 2, then add 5.

Answers

Answer:

t = 7

Step-by-step explanation:

[tex]t - 6 \times 2 + 5 = 0 \\ t - 12 + 5 = 0 \\ t - 7 = 0 \\ t = 7[/tex]

I saw the other answer didn’t work I tried a different method not sure if it’s correct but you can try it

t - 6 x 2 + 5
t - 6 x 7
t = 42

SHOW YOUR WORK answer and step by step

Answers

Answer:

a=7

Step-by-step explanation:

-52 = -17 -5a

Add 17 to each side

-52+17 = -17-5a+17

-35 = -5a

Divide by -5

-35/-5 = -5a/-5

7=a

Suppose that you could replace the ordered pair (1, 4) to make the relation R (shown left) into a function. Which ordered pair would work? (1, 2) (â€"1, 4) (2, 3) (4, 15).

Answers

We want to see which ordered pair we can add to the one we have in order to make R a function (sadly, we do not have the relation R, so expect a general answer).

Let's start by defining a function.

A function is a relation that maps elements from one set, the domain, into elements of another set, the range.

Where we also have a rule, each element in the domain can be mapped into only one element in the range.

So for example, if our relationship is:

R { (1, 2), (1, 3), (2, 4)}

The element of the domain "1" is being mapped into two different elements of the range, then this is not a function.

So, to answer the question, you would want to replace the element (1, 4) from one element that does not share the first value with any other of the relation.

Just to given an example, if the relation is:

R : { (1, 1), (1, 4), (2, 3), (3, 6)}

From the options, the only one that does not share the first element with any of the ordered pairs in R is (4, 15)

Then we replace (1, 4) by (4, 15)

And the relation becomes:

R' : {(1, 1), (2, 3), (3, 6), (4, 15)}

Which is a function.

If you want to learn more about relations and functions, you can read:

https://brainly.com/question/15422854

Answer:

(4, 15)

Step-by-step explanation:

this is the correct answer and for those on edg its letter (D)

The graph of F(x), shown below, resembles the graph of G(x) = x2, but it has
been changed somewhat. Which of the following could be the equation of
F(x)?

Answers

Answer:F(x)=-x2-3

Step-by-step explanation:We are given a function:

The graph of  is also shown in the given question figure.

It is a parabola with vertex at (0,0).

Sign of  is positive, that is why the parabola opens up.

General equation of parabola is given as:

Here, in G(x), a = 1

Vertex (h,k) is (0,0).

As seen from the question figure,

The graph of F(x) opens down that is why it will have:

Sign of  as negative. i.e.

And vertex is at (0,-3)

Putting the values of a and vertex coordinates,

Hence, the equation of parabola will become:

The expression for [tex]f(x) = -(x-3)^{2}-2[/tex] represents the red curve.

How to derive rigid transformations between two functions

In this question we know that [tex]g(x) = x^{2}[/tex] and an unknown [tex]f(x)[/tex], whose expression can be derived by using the following rigid transformations:

Reflection around the x-axis.Translation 3 units in the +x axis.Translation 2 units in the -y axis.

Then, the expression for [tex]f(x) = -(x-3)^{2}-2[/tex] represents the red curve. [tex]\blacksquare[/tex]

To learn more on functions, we kindly invite to check this verified question: https://brainly.com/question/5245372

The sum 15 and a number x

Answers

Answer:

(x + 15)

Step-by-step explanation:

hope it helps you

what is the diffrance -2-8

Answers

-10 is the answer yuhhhhh

√6 x √27 is equal to​

Answers

Answer:

[tex]9\sqrt{2} = 12.727922061[/tex]

How do I find the slope

Answers

Hey bro use rise over run
Have a good day

Answer:for a graph u use rise over run. If u just have the points u use the formula which is m=y2-y1/x2-x1

Step-by-step explanation:

Hong will run at least 24 miles this week. So far, he has run 16 miles. What are the possible numbers of additional miles he will run?

Answers

Answer:
8 miles

Steps:
Since he is AT LEAST running 24 miles and he already ran 16. He only had 8 more miles to go. 24 miles is the minimum he is running, he could run more.

Stock sold at 23. at the start of
trading. It was up 33 points at the
end of trading. What was the price
at the end of trading?

Answers

Answer:

Step-by-step explanation:

89k

Answer:

89k is the answer

Step-by-step explanation:

answer=89k

Help me on number one please

Answers

Answer:

The correct answer would be B

Step-by-step explanation:

i just need this last question Milan will rent a car for the weekend. He can choose one of two plans. The first plan has an initial fee of  $49.96  and costs an additional  $0.15  per mile driven. The second plan has an initial fee of  $57.96  and costs an additional  $0.13  per mile driven. How many miles would Milan need to drive for the two plans to cost the same?​

Answers

Answer:

400 miles

Step-by-step explanation:

Let the total cost of a plan be $T and the number of miles driven be m.

First plan

T= 0.15m +49.96 -----(1)

Second plan

T= 0.13m +57.96 -----(2)

When the two plans cost the same, the value of T in the first plan is equal to that of the second plan.

Equating (1) and (2) together:

0.15m +49.96= 0.13m +57.96

0.15m -0.13m= 57.96 -49.96

0.02m= 8

m= 8 ÷0.02

m= 400

∴ Milan would need to drive 400 miles for the two plans to cost the same.

14. Is the answer to this question
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