Fatima conducted an experiment where she asked people to estimate the temperature of glasses of water. She recorded how far the estimates were from the actual temperatures, using positive values for guesses that were too high and negative values for guesses that were too low. Her results are in the table below.
Estimate -−minus actual temperature (\degree\text{C})(°C)left parenthesis, degree, start text, C, end text, right parenthesis
Person A Person B Person C
-3−3minus, 3 444 888
-1−1minus, 1 -4−4minus, 4 -2−2minus, 2
000 222 555
222 -3−3minus, 3 111
What is the mean value in Fatima's results?

Answers

Answer 1

The mean value is the sum of the temperature values divided by the total frequency. Hence, the mean value in Fatima's temperature result is -0.75°C

Given the data :

Person 1 :

-3, - 1, 0, 2,

Sum = (-3 + (-1) + 0 + 2) = - 2

Person 2 :

4, -4, 2, - 3

Sum = (4 + (-4) + 2 + (-3)) = - 1

Person 3 :

8, - 2, 5, 1

Sum = (8 + (-2) + 5 + 1) = 12

Mean value = (Total sum ÷ Frequency)

Mean value = [(-2 + (-1) + 12) ÷ 12]

Mean value = - 9 ÷ 12 = - 0.75

Therefore, the mean value of the result is 0.75°C

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Related Questions

How many ways can you make the number 2? (Using consecutive numbers)

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some ways you can make the number 2 are

Answer

For any two consecutive odd numbers, the difference is 2. For example, 3 and 5 are two consecutive odd numbers, their difference = 5 - 3 = 2. For any two consecutive even numbers, the difference is 2. For example, 6 and 8 are two consecutive even numbers, their difference = 8 - 6 = 2.

WILL MARK BRAINLIEST!
Simplify the term 3x - 2 (5x -3)

Answers

Answer:

No solution

Step-by-step explanation:

Combine like terms on the right hand side of equation

3x + 2 = 3x -1

This cannot be simplified so there are no solutions.

Answer:

the answer is − 7 + 6

Step-by-step explanation:

multiply -2 times 5 and -2 times -3

you should get 3x-10x+6

combine the terms, you should get -7x+6

Write the equation of the graph below in slope intercept form.

Write the answer in slope intercept form and please step by step.

(2,1) and (1,3)=

Answers

Step-by-step explanation:

so (2,1)       (1,3)

     x1,y1      x2,y2

so then it would be

the slope is -1

so the equation is after using your x1 and y1 would be

y-1=-1(x-2)

and after you solve that by using the comunitive property, then it will look like

y-1=-1x+2

then you subtract 1 from the y side and make it

the answer is y=-1x+3

find the missing number so that the equation has no solutions. _x-18=-3(x+4)

Answers

Answer:X=5

Step-by-step explanation:took the test

20.
The total cost of 3 apples and 4 pears is £1.84
The total cost of 5 apples and 2 pears is £1.76
Work out the cost of one apple and the cost of one pear.

Answers

Answer:

an apple costs 0.24 and a pear costs 0.28

Step-by-step explanation:

      3a + 4p = 1.84                                 3a + 4p = 1.84

     -5a + 2p = 1.76   m(-2)                 -10a - 4p = -3.52

        3a + 4p = 1.84

 +   -10a - 4p = -3.52

       -7a          = -1.68

           a         = -1.68/-7

           a        =  0.24

   

       3a + 4p = 1.84

       3(0.24) + 4p = 1.84

       0.72  + 4p = 1.84

                   4p = 1.84 - 0.72

                    4p = 1.12

                      p = 0.28

The cost of an apple is £0.24 and the cost of pear is £0.28

What is a system of equations?

A system of equations is two or more equations that can be solved to get a unique solution. the power of the equation must be in one degree.

Let a represent the cost of one apple and p represent the cost of one pear.

Then the system of equation will be;

     3a + 4p = 1.84                                

    -5a + 2p = 1.76   m(-2)                

-10a - 4p = -3.52

Solving both the equation;

-7a   = -1.68

a   = -1.68/-7

a   =  0.24

For solving p;

3a + 4p = 1.84

3(0.24) + 4p = 1.84

0.72  + 4p = 1.84

4p = 1.84 - 0.72

4p = 1.12

p = 0.28

Hence, the cost of an apple is £0.24 and the cost of pear is £0.28

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. Twelve out of 36 students in a class are in the
drama club. What is the ratio of the students in the
drama club to the students who are not in the
drama club?

Answers

36-12=24

The answer is:

12;24 or 1;2 (simplified)

Question 6 of 25
What is sin 45°?

Answers

Answer:

B.

[tex] \frac{1}{ \sqrt{2} } [/tex]

can someone help me please ?

Answers

Answer:

18 x^7 y^5

Step-by-step explanation:

You went grocery shopping with $40.65. You left the
store with $5.10. Write an equation you can use to find
the cost c of the groceries.
C

Answers

Answer:

$40.65 - c = $5.10

Step-by-step explanation: You will subtract $5.10 from both sides to get the answer to C

The cost of the groceries is $35.55.

What is an expression?

An expression is a way of writing a statement with more than two variables or numbers with operations such as addition, subtraction, multiplication, and division.

Example: 2 + 3x + 4y = 7 is an expression.

We have,

Total amount = $40.65

Amount left = $5.10

The equation for the cost of groceries C.

40.65 - C = 5.10

Solve for C.

40.65 - 5.10 = C

C = 35.55

Thus,

The cost of the groceries is $35.55.

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Answer this question I will try to give brainliest but I don't know how so no promises.

Answers

Answer:

d. 4x+12

Step-by-step explanation:

distribute the 4

4*x =4x

4*3=12

therefore its

4x+12

Answer:

D

Step-by-step explanation:

4(x+3)

(4 times x) + (4 times 3)

4x + 12 = D

120-20/10+2
help quick due in 10 min

Answers

[tex]120 - \frac{20}{10} + 2 \\ 120 - 2 + 2 \\ = 120[/tex]

Answer:

120

Step-by-step explanation:

120-20/10+2

=120-2+2

=120

A scrapyard had 200 tons of recycled steel. They sold 15 tons per day for several days. If there are 80 tons left at the scrapyard, how many days have passed?

Please explain fully.

Answers

Answer:

8 days

Step-by-step explanation:

200-80= 120

120 ÷ 15 = 8 days

Answer:

SAME AS WHAT HE SAYS

Step-by-step explanation:

HELP ASAP!! Im being timed!!

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Answer:

im pretty sure its a

Step-by-step explanation:

free question
A certain shade of pink is created by adding 3 cups of red paint to 7 cups of white paint.
How many cups of red paint should be added to 1 cup of white paint?

Answers

Answer:

3/4 I think its that

Step-by-step explanation:

its a guess

What is the missing angle

Answers

55°

Step-by-step explanation:

110+15+x =180

x = 180 - 125

x = 55°

Answer:

Step-by-step explanation:

f(x)=x3+8x2+5x−50 factored

Answers

Answer:

[tex](x+5)^{2} (x-2)[/tex]

Step-by-step explanation:

1) Factor [tex]x^3} +8x^{2} +5x-50[/tex] using polynomial division.

[tex](x^{2} +10x+25)(x-2)[/tex]

2) Rewrite [tex]x^{2} +10x+25[/tex] in the form [tex]a^{2} +2ab+b^{2}[/tex], where a = x and b = 5.

[tex](x^{2} +2(x)(5)+5^{2} )(x-2)[/tex]

3) Use Square of Sum: [tex](a+b)^{2} =a^{2} +2ab+b^{2}[/tex].

[tex](x+5)^{2} (x-2)[/tex]

Please solve... I will mark you brainliest

Answers

Answer:

x = 5

Step-by-step explanation:

[tex]6x - 20 = 2x \\ - 20 = 2x - 6x \\ - 20 = - 4x \\ \frac{ - 20}{ - 4} = x = 5[/tex]


What does m represent in the equation y = mx + b?
A. the y-intercept of the
graph of y = mx + b

B. the slope of the graph of
y = mx + b

C. the run in the ratio rise
/ run

D. None of these

Answers

Answer:

B. the slope of the graph of y = mx + b

Step-by-step explanation:

m is the slope.

y is the y value

x is the x value

b is the y intercept

the answer is

d. none of these

Please give a detailed explanation

Answers

[tex]\displaystyle \large \boldsymbol{} (7 \sqrt[5]{6x-10}) ^2 +\backslash\!\!\!8=\frac{49}{x^{-\tfrac{2}{5} }} +\backslash\!\!\!8 \\\\\\ 49\!\!\!\! \diagup \sqrt[5]{(6x-10)^2} = 49\!\!\!\! \diagup \cdot \sqrt[5]{x^2} \ \ ; \\\\\\ (6x-10)^2=x^2 \\\\ (6x-x-10)(6x+x-10) =0 \Rightarrow x_1=2 \ ; \ x_2=\frac{10}{7 }[/tex]

Jake has 1/2 cup of apples for making fruitcups. Each fruitcup requires 1/8 cup of apples. How many fruit cups can he make?

Answers

Answer:

he can make 4 fruitcups with the apples

Find the value of 2c - 3D when c = 6 and d = 4

Answers

2c-3d=0

2(6)-3(4)
12-12
0

HI HELP ME W MATH PLSS!!

Hannah drove her car 318.4km in 4h
a) Calculate her average speed=
b) At this speed, how far can she expect to travel in 5.5 h? =

Answers

Answer:

a) 79.6

b) 437.8

Step-by-step explanation:

First, you have to do 318.4/4 to find the rate she goes in the duration of an hour. The rate is 79.6, which means she travels at a rate of 79.6 kilometers per hour.

Then, you have to find the distance she takes to travel in 5.5 hours, so you have to do 5.5*79.6 which is 437.8.

So, Hannah travels 437.8 kilometers in 5.5 hours.

which ordered pair is a solution to the equation

Answers

B) Only (1, 3)

2x + 3y = 10

Substitute (2,2) into the equation:
2(2) + 3(2) = 10
4 + 6 = 10 which is true

Substitute (1,3) into the equation:
2(1) + 3(3) = 10
2 + 9 is not equal to 10

1. Allison is a recent college graduate. She got a job as a marketing executive making $82,000 a year, and she will have to move across the country for the new job. Her moving expenses are $7500. She has also started paying back her student loans, and this year will pay back $1386 in student loan interest. What is Allison's adjusted gross income (AGI)?

Answers

Answer:

82,000+7500+1,386=168,136

Step-by-step explanation:

You have to do Addition

Find 6.8x1.9 using partial products. Draw an area model to show the partial
products.

Answers

Answer: i do not now this one

Step-by-step explanation:

I NEED SOMEONE WHO IS GOOD AT MATH AND WHO CAN GIVE ME THE RIGHT ANSWERS FOR THESE ASAP NO LINKS !!!

Answers

Step-by-step explanation:

2x + 9 = 35

2x = 35 - 9 = 26

x = 26/2 = 13

x = 13

therefore, option A is correct

4 + | 7 - m | = 5

| -m + 7 | = 5 - 4

- m + 7 = 1 ( however or (only) m < 7 )

( -m + 7 ) ( however or only m 7 )

m = 6 and m = 8

therefore, Option B is correct.

3t + 3/5 = 6

3t + 3 = 6 × 5 = 30

3t = 30 - 3 = 27

t = 27/3 = 9

t = 9

6(d + 1) - 2d = 54

6d + 6 - 2d = 54

4d + 6 = 54

4d = 54 - 6 = 48

d = 48/4 = 12

d = 12

-110 = 13 + 3(4h - 6)

-110 = 13 + 12h - 18

-12h = 13 - 18 + 110

-12h = 105

h = 105/12

h = 8.75

hope this answer helps you dear!..

2x+9=35 x=13
t=9
m=6
h=-35/4

3/7x2/3 ..........................

Answers

[tex] \frac{3}{7} \times \frac{2}{3} \\ \\ reduce \: \: the \: numbers \\ \\ \frac{1}{7} \times 2 \\ \\ calculate \\ \\ = \frac{2}{7} \\ \\ in \: alternate \: \: form \\ \\ 0.285714 \\ \\ hope \: it \: helps[/tex]

Answer:

2/7

Step-by-step explanation:

3/7 x 2/3

1. Multiply the numerators and denominators: 3 ×2 = 6, 7 × 3 = 21 --> 6/21

2. Simplify: 6/21 = 2/7

PLSSS HLEPP ME OUTT ITS URGENTTTT​

Answers

Answer:

3

Step-by-step explanation:

[tex]\sqrt{133225} =365[/tex]

Answer:

365

Step-by-step explanation:

√133225 = 365

(365 × 365 = 133225)

Hope this helps!

which graph represents the equation y=-4/3x-2

Answers

Answer:Y = 3x2+ 4

When equation is in the form of y = Ax2 + Bx + C, it is in standard form.

A = 3, B = 0

Since A is positive, the graph opens upward.

Vertex is the lowest point on the graph.

The x coordinate of the vertex occurs at -B/2A

X =-B/2A = -0/2(3) = 0

To find the y-coordinate, we substitute 0 and solve for y

Y = 3(0)2 + 4 = 4

The vertex is at (0,4) ... the lowest point on the graph

From here, you can construct a table of values for x, and solve for y to obtain points on the graph.

Good x values to pick are -2, -1, 1, and 2

The domain is all the x-values for which the function is defined, The function is defined for all real values of x.

The domain is all real numbers. { x | x is a real number }

The range is all the y values obtained from input of the x-values.

The smallest y value is 4, the largest is positive infinity.

The range is all real numbers ≥ 4. { y | y ≥ 4 }

2. Deon wants to find the perimeter of a square with side length 6m - 3. Write two expressions that represent the perimeter, including one expression in simplest form. Perimeter of a square- p = 4(s) or p = s + s + s + s​

Answers

Step-by-step explanation:

The perimeter of the given square is: a + a + a + a = 4 a units. Hence, the formula of the perimeter of a square = 4 × (length of any one side).

The expressions that represent the perimeter of the square are  p = 4(6m-3) and p = 24m - 12. And p = 24m - 12 is the simplest form of the expression.

What is perimeter?

A closed shape's perimeter is the sum of the lengths of its outside boundaries. The lengths of all the sides are added to determine the measurement.

Given:

The side of the square is 6m-3 unit.

And all the sides of the squares are equal.

And the perimeter p of the square is,

= the sum of all the sides.

p = 4 x one side.

p = 4(6m-3)

The above expression represents the perimeter of the given square.

Simplifying,

p = 24m - 12

This is the simplest form of the expression.

Therefore, the required expression are p = 4(6m-3) and p = 24m - 12.

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