If the temperature at which a certain compound melts is a random variable with mean value 135°C and standard deviation 3°C, what are the mean temperature and standard deviation measured in °F? [Hint: °F = 1.8°C + 32.]

Answers

Answer 1

Answer:

The mean in ºF is of 275 and the standard deviation is of 37.4.

Step-by-step explanation:

We apply the conversion formula for both measures, the mean and the standard deviation.

Mean value 135°C

In ºF:

[tex]F = 1.8(135) + 32 = 275[/tex]

Standard deviation 3°C:

In ºF:

[tex]F = 1.8(3) + 32 = 37.4[/tex]

The mean in ºF is of 275 and the standard deviation is of 37.4.


Related Questions

Would someone help me pls ?

Answers

the first option is the right one

Classify the triangles either by their sides or their angles. Explain how you know the classification for the triangles.

Answers

Answer: Scalene and isosceles

Step-by-step explanation:


Select the correct answer.
Which level of government relies the most on income tax?
Α.
federal
B.
state
C.
local

Answers

The most common form of federal taxation is the income tax. The income tax rules allow the government to collect taxes from any person or business that earns money during the year.

Answer:Federal Step-by-step explanation:

1/6

write the fraction as a decimal (round to the nearest hundredth, if necessary)

write as a percent

Answers

0.16 that is the answer!!!!

6x-9y+45 in slope intercept form

Answers

The answer is: y= 2/3x +5

PLEASE PLEASE HELP WILL GIVE GIVE BRAINLIEST PLS!!!!!!!!!! Create a factorable polynomial with a GCF of 3x. Rewrite that polynomial completely factored. (10 points)

Answers

Answer:

Step-by-step explanation:

you can think in a reverse way:

Take

[tex]3x(x^2+2x+3y^2)= 3x^3+6x^2+9xy^2.[/tex]

So the answer is

[tex]3x^3+6x^2+9xy^2 = 3x(x^2+2x+3y^2)[/tex]

if f(x) = 5 + 4( x - 4)^2

then what is f(7)

Answers

Answer:

41

Step-by-step explanation:

f(7) = 5 + 4(7-4)²

= 5 + 4(3²)

= 5 + 4(9)

= 5 + 36

Answer:

f(7)=39

Step-by-step explanation:

f(7)=5+4((7)-4)^2

=5+4(3)^2

=5+4(9)

=5+36

=39

pls help me i am very behind and confused

Answers

i thinks it’s a sorry if i am wrong

2√48 - 3√12 + 3√27 mmm

Answers

Answer:

Step-by-step explanation:

In a statistics class, students were asked how many siblings they have. The mean number of siblings for the class is 3.08 with a standard deviation of 1.61 siblings. The z-score for a student with four siblings is 0.57. Which of the following statements is the best interpretation of the z-score?

Answers

Answer:

The number of siblings for this student is 0.57 standard deviations above the mean number of siblings.

Step-by-step explanation:

yes

150 adults complete a survey.
80 are women.
Write the ratio

in its simplest form.
men : women

Answers

Answer:

7:8

Step-by-step explanation:

there are 80 women so there has to be 70 men

simplified that is 7 men to 8 women

7 men 8 women.
Ratio: 7:8

HELP ASAPPP DUE IN A COUPLE MINUTES. WILL GIVE BRAINIEST!

can someone do these 3 questions for me please !!

(PLEASE HELP WITH 7,8,9)

*please don't put none related answers to get points !! *​

Answers

Answer:

7. Quadrilateral

8. Trapezoid

9. Quadrilateral

Pls mark me as Brainiest if that helped you :)

Step-by-step explanation:

Answer:

..

Step-by-step explanation:

If you do this for me you’ll get brain list

Answers

Answer:

A. full line across label 6 inches

B. Full line across label 10 inches

C. Full line across label 12 inches

Part B:

A. 18.84 inches

B. 31.4 inches

C. 37.68 inches

Step-by-step explanation:

Hope this helps

About 26% of movies coming out of Hollywood are comedies, Warner Bros has been the lead studio for about 13% of recent movies, and about 3% of recent movies are comedies from Warner Bros. Let C denote the event a movie is a comedy and W denote the event a movie is produced by Warner Bros.

Required:
a. What is the probability that a movie is either a comedy or produced by Warner Bros?
b. What is the probability that a Warner Bros movie is a comedy?
c. What is the probability that a comedy has Warner Bros as its producer?

Answers

Answer:

a. 0.36 = 36% probability that a movie is either a comedy or produced by Warner Bros.

b. 0.2308 = 23.08% probability that a Warner Bros movie is a comedy

c. 0.1154 = 11.54% probability that a comedy has Warner Bros as its producer

Step-by-step explanation:

Conditional Probability

We use the conditional probability formula to solve this question. It is

[tex]P(B|A) = \frac{P(A \cap B)}{P(A)}[/tex]

In which

P(B|A) is the probability of event B happening, given that A happened.

[tex]P(A \cap B)[/tex] is the probability of both A and B happening.

P(A) is the probability of A happening.

a. What is the probability that a movie is either a comedy or produced by Warner Bros?

We solve this question treating these events as Venn sets.

I am going to say that:

Set A: Movie is a comedy.

Set B: Movie is produced by Warner Bros.

26% of movies coming out of Hollywood are comedies

This means that[tex]P(A) = 0.26[/tex]

Warner Bros has been the lead studio for about 13% of recent movies

This means that [tex]P(B) = 0.13[/tex]

3% of recent movies are comedies from Warner Bros.

This means that [tex]P(A \cap B) = 0.03[/tex]

The desired probability is:

[tex]P(A \cup B) = P(A) + P(B) - P(A \cap B) = 0.26 + 0.13 - 0.03 = 0.36[/tex]

0.36 = 36% probability that a movie is either a comedy or produced by Warner Bros.

b. What is the probability that a Warner Bros movie is a comedy?

Conditional probability, in which

Event A: Produced by Warner Bros

Event B: Comedy

Warner Bros has been the lead studio for about 13% of recent movies

This means that [tex]P(A) = 0.13[/tex]

3% of recent movies are comedies from Warner Bros.

This means that [tex]P(A \cap B) = 0.03[/tex]

The desired probability is:

[tex]P(B|A) = \frac{P(A \cap B)}{P(A)} = \frac{0.03}{0.13} = 0.2308[/tex]

0.2308 = 23.08% probability that a Warner Bros movie is a comedy.

c. What is the probability that a comedy has Warner Bros as its producer?

Now,

Event A: Comedy

Event B: Warner Bros as its producer.

About 26% of movies coming out of Hollywood are comedies

This means that [tex]P(A) = 0.26[/tex]

3% of recent movies are comedies from Warner Bros.

This means that [tex]P(A \cap B) = 0.03[/tex]

The desired probability is:

[tex]P(B|A) = \frac{P(A \cap B)}{P(A)} = \frac{0.03}{0.26} = 0.1154[/tex]

0.1154 = 11.54% probability that a comedy has Warner Bros as its producer

find m 135°
125°
55°
100°

Answers

Answer:

answer: m = 125

Step-by-step explanation:

parellograms add up to a total of 360 so m = 125 because 125 + 125 + 55 + 55 = 360 Hope this helps!

Step-by-step explanation:

here's your solution

==> sum of corresponding angles of parallelogram = 180°

==> angle J + angle k = 180°

==> 55° + k = 180°

==> k = 180° - 55°

==> k = 125°

[tex]hope \: it \: helps[/tex]

by how much is the product of 9/5 and 33/4 greater than 5

Answers

Answer:

The product of 9/5 and 33/4 is 9.85 units larger than 5.

Step-by-step explanation:

To determine by how much is the product of 9/5 and 33/4 greater than 5, the following calculations must be performed:

((9/5) x (33/4)) - 5 = X

(1.8 x 8.25) - 5 = X

14.85 - 5 = X

9.85 = X

Therefore, the product of 9/5 and 33/4 is 9.85 units larger than 5.

Find an
equation for the line through (-6, 3) and
parallel to y = 3x + 1.

Answers

Since this line is parallel to y = 3x + 1 their slopes are equal. The slope is equal to 3. The line is also passing the point (-3,4).

This is the format of the line parallel to y = 3x + 1

y = 3x+ b

This line passes through point (-3, 4)

Replacing the values of y and x coming from the coordinates of (-3, 4)

4 = 3 * (-3) + b

Solving for the y-intercept b

4 = -9 + b

b = 4 + 9

b = 13

Knowing the slope as equal to 3 and the y-intercept as 13 the equation of the line is

y = 3x+13

Which value (s) of x are solution(s) of the equation below?
A. x = 2, 4
B. x = -1, 4
C. x = 2
D. x = -1

Answers

Answer:g

Step-by-step explanation:

helpneedednotfakeanswers

Answers

Answer:

S(-17,13)

Step-by-step explanation:

Answer:

S"(-17, 13)

Step-by-step explanation:

Since it's reflected across the y-axis, the y value stays the same and the x value changes to a negative. If it were reflected across the x-axis then the x value you stay the same and the y value would change to a negative. Since it's a reflection, meaning it's just "mirrored" across a given point, the numbers stay the same regardless.

Hope this helps. Have a nice day.

Shanya had to write 5 pages for a book report. How many hours would it take her to
write, if she wrote one-sixth of a page each hour?

Answers

Answer:

30 hours

Step-by-step explanation:

[tex]\frac{5}{\frac{1}{6}}: \frac{y}{1}[/tex]

y · 1/6 = 5 · 1

1/6y = 5

1/6y ÷ 1/6 = 5 ÷ 1/6

y = 30

Find the missing value. -2 = ? + 6

Answers

Answer:

-8 will be the answer..am I right?

Answer:

? = -8

6 + -8 = -2

8,546.54 to nearest 1,000.00​

Answers

9,000

Step by step: remember 5 or higher raise the score 4 or less let it rest. You underline the thousands place in this situation then look back to the number right to it. Since that number is 5 you must change the 8 to a 9. All the other numbers to the right if 8 is now 0.


Your answer should be a polynomial in standard form.
(x + 4)(x + 6)

Answers

Step-by-step explanation:

x^2 +10x + 24

use FOIL

have a great day

3x^4 - 243
Factoring

Answers

Answer:

x = ±3

Step-by-step explanation:

(3x² + 27)(x² - 9) = 0

(3x² + 27)(x + 3)(x - 3) = 0

3x² = -27

x² = -9  

x = √-9  (this will result in an imaginary number)

x + 3 = 0

x = -3

x - 3 = 0

x = 3

A satellite circles the earth in such a manner that it is y miles from the equator​ (north or​ south, height from the surface not​ considered) t minutes after its​ launch, where y is given by the equation below.
(picture)
At what times t in the interval ​, the first 4​ hr, is the satellite mi north of the​ equator?

Answers

9514 1404 393

Answer:

  t ∈ {19, 85, 109, 175, 199}

or

  t ∈ {40, 64, 130, 154, 220}

Step-by-step explanation:

A graphing calculator relieves the tedium of solving for t. The attachments show the times the satellite is 4000 miles from the equator. Since y may be either north or south, the satellite may be 4000 north of the equator for y = 4000 or for y = -4000.

__

If y is miles north of the equator, then ...

  4000 = 6000cos(z) . . . . . where z=(π/45)(t-7)

  z = arccos(4000/6000) ≈ 0.84107 radians

There is another solution at 2π -0.84107 radians, about 5.44212 radians

The corresponding time values are ...

  t = 7 +(45/π)(z) ≈ 19.047 and 84.953 . . . . minutes

The period of the function is 90 minutes, the times will be the above times and at 90-minute intervals after each.

The satellite is 4000 miles north of the equator at ...

  t ≈ 19, 85, 109, 175, 199 . . . minutes after launch

__

The solution is similar if y represents miles south of the equator. Then we have ...

  -4000 = 6000cos(z)

  z = arccos(-4000/6000) ≈ 2.30052 radians (and 3.98266 radians)

The corresponding time values are ...

  t = 7 +(45/π)(z) ≈ 39.952 and 64.047 . . . . minutes

Again, considering the period, the satellite is 4000 miles north of the equator at ...

  t ≈ 40, 64, 130, 154, 220 . . . minutes after launch

_____

Additional comment

We might usually think of y as being positive in the northerly direction. However, in this age of political correctness and bias sensitivity, we have to consider that "y is north or south" means exactly that. So, we have also shown the solutions when y is positive south of the equator.

Usually, we prefer that the variables are defined unambiguously.

please help. Will mark brainliest if correct. ( links will be banned)

Answers

Answer:

how many tries do you have?

I think its d because the proportion 6/4 and LM/6 cuz the smaller number is on the bottom? I dont know try it. how many tried do you have?

Its either d or b

In an isosceles triangle, the base angles measure 65°. Which of the following expressions is a way to calculate the measure of the third angle?​

Answers

Answer:

its A

Step-by-step explanation:

its A ️ ‍♀️ ️ ‍♂️ ️

180-2(65). The base are both 65 and a triangle adds up to 180.

Identify the distance between the points (9,7,3) and (5,3,2), and identify the midpoint of the segment for which these are the endpoints. Round to the nearest tenth, if necessary.

Answers

Using it's formula, it is found that the distance between the two points is of 5.7 units. Additionally, the midpoint is (7, 5, 2.5).

What is the distance between two points?

Suppose that we have two points, [tex](x_1,y_1)[/tex] and [tex](x_2,y_2)[/tex]. The distance between them is given by:

[tex]D = \sqrt{(x_2-x_1)^2+(y_2-y_1)^2}[/tex]

In this problem, the points are (9,7,3) and (5,3,2), hence:

[tex]D = \sqrt{(9 - 5)^2 + (7 - 3)^2 + (3 - 2)^2} = 5.7[/tex]

The distance between the two points is of 5.7 units.

What is the midpoint?

The midpoint is the mean of the coordinates, hence:

xM = (9 + 5)/2 = 7.yM = (7 + 3)/2 = 5.zM = (3 + 2)/2 = 2.5.

The midpoint is (7, 5, 2.5).

More can be learned about the distance between two points at https://brainly.com/question/18345417

Which of the functions below could have created this graph?​

Answers

i think the answer is a

Jessica has a normal deck of cards (52 cards). She asks her friend, Sara, to draw a card. What
are the odds in favor of Sara drawing the queen of hearts?
A.2:26
B.1:51
C.4:13
D.26:1

Answers

Answer:

B

Step-by-step explanation:

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