Joshua uses his thermometer and finds the boiling point of ethyl alcohol to be 75o C. He looks in a reference book and finds that the actual boiling point of ethyl alcohol is 80oC. What is his percent error?

Answers

Answer 1

Answer:

the percent error is 6.25%

Step-by-step explanation:

The computation of the percent error is shown below:

Percent error is

= (Experimental value - accepted value) ÷ (experimental value) × 100

= (80 degrees - 75 degrees) ÷ (80 degrees) × 100

= (5 degrees) ÷ (80 degrees) × 100

= 0.0625 × 100

= 6.25%

hence, the percent error is 6.25%

We simply applied the above formula so that the correct value could come

And, the same is to be considered

Answer 2

Answer:

6.25

Step-by-step explanation:

I just did this


Related Questions

If f(x) = 3x^2 – 2 and g(x) = 2x + 4, find (f- g)(x).

Answers

Answer:

(f - g)(x) = 3x² - 2x - 6

General Formulas and Concepts:

Pre-Alg

Order of Operations: BPEMDAS

Step-by-step explanation:

Step 1: Define

f(x) = 3x² - 2

g(x) = 2x + 4

(f - g)(x) is f(x) - g(x)

Step 2: Evaluate

Substitute:                    (f - g)(x) = 3x² - 2 - (2x + 4)Distribute -1:                 (f - g)(x) = 3x² - 2 - 2x - 4Combine like terms:    (f - g)(x) = 3x² - 2x - 6

Enter your answer by filling in the boxes (please answer quick)

Answers

i’m pretty sure it’s if it’s meant to go up :)
x^1 (-4,9)
y^1 (-,9)
z^1 (1,4)
if it meant to go down then it would be
x^1 (-4,3)
y^1 (1,3)
z^1 (1,-2)
hope this helps :)

Answer:

X' -4, 3

Y'  1, 3

Z'  1, -2

hope this helps!

Write an equation in slope-intercept form for the line with slope -6 and y-intercept 6.

Answers

Answer:

y = -6x + 6

Step-by-step explanation:

y = mx + b

y = -6x + 6

The equation in slope-intercept form for the line with slope -6 and y-intercept 6 is y = -6x+6

What is the slope-intercept form of a line?

The slope intercept formula y = mx + c is used when you know the slope of the line to be examined and the point given is also the y intercept (0, c).

Given that, a line has slope -6 and y-intercept 6.

The general form of the slope-intercept form for the line is y = mx+c, where m is the slope and c is the y-intercept.

Therefore, the required equation will be =

y = -6x+6

Hence, the equation in slope-intercept form for the line with slope -6 and y-intercept 6 is y = -6x+6

Learn more about slope-intercept form, click;

https://brainly.com/question/29146348

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Which expressions below equal a rational number? Choose all that apply.
please help me, i need the answer ASAP

Answers

Answer:

2,3 and 4 are rational

Step-by-step explanation:

Bath and 1 yard of ribbon. She is 1/2 yard for project. She wants to divide the rest of the ribbon into pieces 1/4 yards long. How many 1/4 pieces of ribbon can she make

Answers

Answer:

2

Step-by-step explanation:

Given:

Total length of ribbon = 1 yard

Length of ribbon used for project = [tex]\frac{1}{2}[/tex] yard

Length of ribbon the rest of ribbon is to be divided = [tex]\frac{1}{4}[/tex] yard

To find:

The number of ribbons of length [tex]\frac{1}{4}[/tex] yard that can be made = ?

Solution:

Length of ribbon left after the 1 yard ribbon is used for project can be calculated by subtracting the length of ribbon used from the initial length of ribbon.

i.e.

Length of ribbon left = [tex]1-\frac{1}{2} =\frac{1}{2}[/tex] yard

Now, number of ribbon of length [tex]\frac{1}{4}[/tex] yard can be found be dividing the length of ribbon left with the length of ribbon pieces to be cut.

i.e.

Number of ribbons:

[tex]\dfrac{\frac{1}{2}}{\frac{1}{4}}\\\Rightarrow \dfrac{1}{2}\times 4 = 2[/tex]

Solve for x. 18 ÷ x = -2 x =

Answers

Answer:

-9

Step-by-step explanation:

18/-9=(-2)

hope this helps :3

if it did pls mark brainliest

Answer:

0? 0 would make those equations equal but if im wrong i need choices to work with

A friend of yours wants to teach a dance class after school. She needs to rent a dance studio to teach the class, and the cost of rent is $400 for 12 weeks. The class will meet each week and your friend will charge each student the same fee for the whole course. Your friend's profit depends on how many students enroll in the course and how much she charges each student.



If your friend charges each student D dollars for the course, define a function, p, that relates the number of students who take the dance course, n, to the profit, p(n).

Answers

Answer:

p(n) = Dn - 400

Step-by-step explanation:

As per given we have:

Spending = Cost of rent = $400Earning = D*nProfit = earning - spending

Profit is going to be:

p(n) = Dn - 400

Eric plots points showing equivalent ratios on the coordinate plane below.

What is true about the relationship between the four points?
The points form a curve.
The points form a straight line.
The points are randomly scattered.
The points do not show any relationship.

Answers

Answer: The points form a straight line.

Step-by-step explanation:

What is the sum of the first five prime numbers?
18
26
ОООО
28

Answers

Answer:

28

The first 5 are

2+3+5+7+11

- 18 Up on the Housetop
Factors of 18: 1, 2, 3, 6, 9, 18. Prime factorization: 18 = 2 x 3 x 3, which can also be written 18 = 2 x 3².

-For 26, the answer is: No, 26 is not a prime number

-28 = 1 x 28, 2 x 14, or 4 x 7. Factors of 28: 1, 2, 4, 7, 14, 28. Prime factorization: 28 = 2 x 2 x 7, which can also be written 28 = 2² x 7.

please help me with this problem

Answers

It’s taking 8 away every time so 88-8 80 then 80-8 72. Hope this helps.

Answer:the question is cut off

Step-by-step explanation:

Find the difference.

Answers

Answer:

B. 13m+8

Step-by-step explanation:

(20m+3)-(7m-5)

= 20m+3-7m+5

= 13m+8

In AXYZ, P is the centroid and YC = 15.
Find the length of YZ

PLEASE HELP!

Answers

Answer:

YZ = 30

Step-by-step explanation:

In Δ XYZ

∵ P is the centroid

XC, YB, and ZA are the medians of the triangle

∵ Each median bisects its base

∴ A is the mid-point of XY

∴ B is the mid-point of XZ

∴ C is the mid-point of YZ

∵ C is the mid-point of YZ

YC = ZC

∵ YC = 15

ZC = 15

∵  YZ = YC + ZC

∴ YZ = 15 + 15

YZ = 30

The length of YZ is 30


K is the midpoint of JL
J
K
L
If:
JK = 5x-2 and
KL = 9x - 30
Find JL.

Answers

Answer:

14x+32

Will be the Answer of this question

Isn't it?

Answer: 14x-32

Step-by-step explanation:

JL = JK+KL

JL = 5x-2+9x-30

JL = 14x-32

Tell whether the lines through the given points are parallel, perpendicular, or neither.
Line 1: (5, - 2), (-1,5)
Line 2: (-12, 2), (2,14)

Answers

(5,-2),(-1,5)
X1 y1 x2 y2

5-(-2)/-1-5 = 7/-6

(-12,2), (2,14)
X1 y1 X2 y2

14-2/2-(-12)= 12/14 dived by 2= 6/7

They are perpendicular
Line 1: -7/6
Line 2: 6/7

What type of number is 5/6

Answers

Answer:

a rational number

Step-by-step explanation:

2 Simplify: 2 (5+ 3x) + (x + 10)​

Answers

Answer:

7x+20

Step-by-step explanation:

multiply (5+3x) by 2 and combine like terms

help fast plz I am so sleepy ​

Answers

Answer:

no,no,yes,no

Step-by-step explanation:

Function: 12<=w-27

First one:   W=34     34-27=7      7 is not greater than or equal to 12

Second one:   W=36      36-27=9     9 is not greater than or equal to 12

Third one:    W=45         45-27=18       18 is greater than or equal to 12

Last one:      W=37        37-27=10       10 is not greater than or equal to 12

Hopefully you can go to be now!

The number of gift baskets Nikki can make varies directly with the amount of time she spends making the baskets. She can make 4 baskets in 1/2 hour.

How many baskets can Nikki make in 5 hours?

Answers

Answer:

40

Step-by-step explanation:

There are 12 players on a volleyball team, and they need to raise $325.20 for new uniforms. The team has already raised $114. If each player raises the same amount, how much more money does each player need to raise?
A $27.01

B
$17.60

C
$9.50

D
$27.10

Answers

Answer:

B: 17.60

Step-by-step explanation:

No one reads these but I did m a t h

Yeast , a key ingredient bread , thrives within the temperature range of 90° F to 95°F . Write and graph an inequality that represents the temperatures where yeast will NOT thrive .

Answers

Answer:

Please find attached the required graph of the inequality representing the temperatures yeast will NOT thrive

Step-by-step explanation:

The given parameters are;

The temperature range, y, in which yeast thrives is 90°F ≤ y ≤ 95°F

Therefore, the temperature range, y', in which yeast will not thrive is 90°F > y  and y > 95°F

The graph of the inequality that represents the temperature is therefore given as shown in the attached drawing.

Answer:

Picture shown below

Step-by-step explanation:

Yeast thrives in temperatures within the temperature range of 90°F to 95°F. Any temperature above or below those limits hinders yeast production. An inequality to represent where yeast will not thrive is shown, where x represents the temperatures where the yeast will not thrive.

Raise to the power:
[tex](-2abx)^{4}[/tex]

Answers

♥️♥️♥️♥️♥️♥️♥️♥️♥️♥️♥️♥️♥️♥️

[tex]( { - 2abx})^{4} = ({ - 2})^{4} \times ( {a})^{4} \times ({b})^{4} \times ({x})^{4} = \\ [/tex]

[tex]16 {a}^{4} {b}^{4} {x}^{4} [/tex]

♥️♥️♥️♥️♥️♥️♥️♥️♥️♥️♥️♥️♥️♥️

Sum of three consecutive natural numbers is 63, what is the greatest number?

Answers

Answer:

19, 21 and 23 are the three consecutive odd numbers which give 63 when adding these numbers.

Step-by-step explanation:

For the pair of polynomials given, select all the points of intersection of their graphs. g(x)=(x+7)(x-5) h(x)=x-5

Answers

Answer:

(-7,0) and (5,0)

Step-by-step explanation:

Answer:

Step-by-step explanation:

(-6,-11) (5,0)

A submarine was cruising at 1,328.4 feet below sea level. It then rose at a rate of 14.76 feet per minute for 15 minutes. Find the submarines depth after it rose for 15 minutes.

Answers

Answer:

New depth = 1,107 feet

Step-by-step explanation:

1) Let us first calculate the total number of feet the submarine rose in 15 minutes using the rate of rise.

rate = 14.76 feet per minute

This means that at every minute, the submarine rose by 14.76 feet.

1 minute = 14.76 feet

∴ 15 minutes = 14.76 × 15 = 221.4 feet

2) To find the new depth, we will subtract the number of feet risen from the initial depth.

initial depth = 1,328.4 feet

rise after 15 minutes = 221.4 feet

New depth = 1,328.4 - 221.4 = 1,107 feet

Solve for X using the Rule of Secants
20
6

Answers

i think you need to rewrite your question

rt - 2n = y solve for t

Answers

Answer:

[tex]t=\frac{y+2n}{r}[/tex]

General Formulas and Concepts:

Pre-Alg

Equality Properties

Step-by-step explanation:

Step 1: Define equation

rt - 2n = y

Step 2: Solve for t

Add 2n to both sides:                    rt = y + 2nDivide both sides by r:                   t = (y + 2n)/r

if i only have 1/3 cups how many 1/3cups do i need to make a cup? answer asap!?​

Answers

Answer:

2 1/3 ssssssssssssddddss

Answer:

You would need 3 to make 1 whole cup

Step-by-step explanation:

Because If we look at it fraction wise

It would be 1/3 right ? and all we need is to make a whole so if we get 3 of 1/3 cups it would be 3/3 . Which equals to 1 cup

Hoped I helped-

Sleepy~

Identify the equation of a line in point slope from that passes through the points (5,-4) and (-3,2)

Answers

Answer:

y = 3/4x - 1/4

Step-by-step explanation:

y= 3/4x-1/4 is the correct answer i think

. Give the domain and range of the relation please help this is for my math hw​

Answers

Answer:

for the domain, find the point on the farthest side (the left) and the closest (the right)

so for yours it would be [-3,2]

it's brackets because the points are closed.

for the range, same thing but for the y intercept.

so it's [-2,4]

there's your answer!

if the measure of angle 5 is 63, find the measure of angle 3

Answers

Answer:

∠3 = 117°

Step-by-step explanation:

∠5 and ∠3 are same side interior angles, this means that they are supplementary.

∠5 + ∠3 = 180°

∠3 = 180° - 63°

∠3 = 117°  

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