A student calculated the density of copper to be
8.37 g/cm3. The accepted value for the density of
copper is 8.92 g/cm3. What is the percent error in the
density?

Answers

Answer 1

Answer:

0.55/8.92×100

55/8.92

=6.17%


Related Questions

Find the two sets coordinates for each graph

Answers

Answer:

a.) (0,2)  

b.) (0,-1)

Step-by-step explanation:

hopefully  this is correct, im pretty sure...

Chris P. Bacon owns 13 animals. Some are chickens and some are pigs. There are 40 legs in all. How many of each animal does Chris own?

it would be helpful to get the system for the equation as well.

Answers

I do not know the system of equations but I can tell you how many of each animals he has.
There are 7 pigs and 6 chickens. Pigs have 4 legs while chickens only have two.

what are the common factors of 42 and 28

A.1,2,4,7,14

B. 1,2,6,7,14

C. 1,2,4,6,7,14

D. 1,2,7,14



Need help ASP

Answers

B 1,2,6,7,14

okay

okay

The answer is D. 1, 2, 7, 14

4 in.
5 in.
2 in.
4 in.
5 in.
5 in.

Answers

Answer:

I need to see the whole question but I believe you just add the numbers

A department store buys snow boots from a supplier for s dollars. The store manager decides on a 33% markup.find the retail price of snow boots, when the department store pays $20 to the supplier for each pair of snow boots?

Answers

Answer:

$26.60

Step-by-step explanation:

It think it is a 26.60$
Hope it helped

What are the common factors of 18 and 42
A. 1,2,3,6,9
B. 1,2,3,6,18
C. 1,2,3,6
D .1,3,6

Answers

C. 1,2,3,6; is the common factors of 18 and 42

In Europe, the speed limits on the highways are posted in kilometers per hour. In the United States, the speed limits are posted in miles per hour. What is the equivalent rate of 65 miles per hour in kilometers per hour?

Answers

i believe the answer is 104 km per hour. correct me if i’m wrong anyone.

Find the mean of:
1.8,1.7,1.3,1.1,1.2,1.6,1.8

Answers

The answer is letter E 1.5

Answer:

A.1.6

Step-by-step explanation:

put them in order

1.1, 1.2, 1.3, 1.6, 1.7, 1.8, 1.8

theirs seven numbers cross out the lowest numbers n the highest numbers and you should get 1.6

What is the slope of the line whose equation is y-4=5/2(x-2)

Answers

Answer:

m=5/2

Step-by-step explanation:

To find the slope, use the formula y=mx+b. m is the slope. The line with the equation y-4=5/2(x-2) gives us a slope of m=5/2. Hope it helps!

It’s asking me to solve for z...Can someone please explain how I can workout this problem?

Answers

Answer:

12°

Step-by-step explanation:

Step 1:

7z + 6° = 90°        Def. of Right Angle

Step 2:

7z = 84°       Subtract 6° on both sides

Step 3:

z = 84° ÷ 7      Divide

Answer:

z = 12°

Hope This Helps :)

6. Claire buys DVDs online. Each DVD that she orders costs $15 and shipping for her order is $10.
Claire can spend no more than $100. How many DVDs can she buy?

Answers

Answer:

5 dvds

Step-by-step explanation:

15 per dvd

15x+10 and then it has to be less then 100

I think the answer would be 5:)

The seventh term of an arithmetic progression is equal to twice the fifth term. The sum
of the first seven terms is 84. Find the first term.

Answers

Answer:

a₁ = - 24

Step-by-step explanation:

The n th term of an AP is

[tex]a_{n}[/tex] = a₁ + (n - 1)d

where a₁ is the first term and d the common difference

Given a₇ = 2a₅ , then

a₁ + 6d = 2(a₁ + 4d) = 2a₁ + 8d ( subtract 2a₁ + 8d from both sides )

- a₁ - 2d = 0 → (1)

The sum to n terms of an AP is

[tex]S_{n}[/tex] = [tex]\frac{n}{2}[/tex] [ 2a₁ + (n - 1)d ]

Given [tex]S_{7}[/tex] = 84 , then

[tex]\frac{7}{2}[/tex] (2a₁ + 6d) = 84

3.5(2a₁ + 6d) = 84 ( divide both sides by 3.5 )

2a₁ + 6d = 24 → (2)

Thus we have 2 equations

- a₁ - 2d = 0 → (1)

2a₁ + 6d = 24 → (2)

Multiplying (1) by 3 and adding to (2) will eliminate d

- 3a₁ - 6d = 0 → (3)

Add (2) and (3) term by term to eliminate d

- a₁ = 24 ( multiply both sides by - 1 )

a₁ = - 24

Solve for x.
y=(2 + x)m

Answers

Answer:

x = [tex]\frac{y-2m}{m}[/tex]

Step-by-step explanation:

Given

y = (2 + x)m ← distribute parenthesis by m

y = 2m + mx ( subtract 2m from both sides )

y - 2m = mx ( divide both sides by m )

[tex]\frac{y-2m}{m}[/tex] = x

Work out the product of 2⅔ and 3¾​

Answers

Answer:

[tex]6\frac{5}{12}[/tex]

Step-by-step explanation:

[tex](\frac{8}{3} * \frac{4}{4} )+(\frac{15}{4} * \frac{3}{3} )[/tex] - so they have the same denominator

[tex](\frac{32}{12} + \frac{45}{12} )\\\\ \frac{32+45}{12} \\\\\frac{77}{12} \\\\[/tex]

Andy drove 840 miles in 12 hours. How far could he drive in 1 hour?

Answers

Answer:

70

Step-by-step explanation:

Divide 840 by 12 and you get 70 miles.

Hey, he's speeding! I should give him a ticket.

Can I have brainlliest?

Hope it helped.

Plz help! Are they right? The questions are below!

Answers

Answer:

I believe the first one is correct, not so sure about the other one.

Step-by-step explanation:

Felix used place value and the distributive property to rewrite the expression 9(278). His work is shown below. 9(278) = 9(200 + 70 + 8) What should Felix do to find the product? Select all that apply. Multiply 9(200) and multiply 70(8). Multiply 9(200), 9(70), and 9(8). Multiply 9(200) and then add (70 + 8). Distribute the 9 to each addend. Find the sum of (1,800 + 630 + 72).

Answers

Step-by-step explanation:

Distributive property is as follows :

a(b+c) = ab + ac

Felix used place value and the distributive property to rewrite the expression 9(278).

Place value of 278 = 200 + 70 +8

He has done like : 9(278) = 9(200 + 70 + 8). Now, the steps are as follows :

9(278) = 9(200 + 70 + 8)

= 9(200)+9(70)+9(8)

= 1800 + 630 +72

= 2502

Hence, option (d) "Distribute the 9 to each addend. Find the sum of (1,800 + 630 + 72)" should be the correct answer.

Answer:

its B D and E

Step-by-step explanation:

A triangle has angle measurements of 80°, 90°, and 10°. What kind of triangle is it?
acute
right
obtuse

Answers

Answer:

Right.

Step-by-step explanation:

It has a 90 degree angle, so that automatically makes it a right triangle.

Answer: acute

This degrees ate less than 90°

A generator turns __?____ energy into ___?____ energy


A.Coiled wire
B.Negative wire
C.Positive wire
D.Handle that can spin
E.Light bulb


Chose two answers to place on the sentence



Help asap

Answers

The answer to that question is C

A tree surgeon reduces the height of a beech tree by 32%.
The tree is now 4.42 m tall.
How tall was it before it was reduced?​

Answers

Answer:

55

Step-by-step explanation:

4.42 x 32%

PLEASE HELP ME OUT I ONLY HAVE 5 MIN TO TURN THIS IN!!!
WILL MARK BRAINLIEST!!!

Write an equation in slope-intercept form for the line that passes through the given point and is perpendicular to the graph of the given equation.

Equation: y-intercept of 1, 3​x ​– ​y = 5

Answers

Answer:

The equation is [tex]y=-\frac{1}{3}x+1[/tex]

Step-by-step explanation:

You have the y-int, so you just need to find the slope, which is the negative reciprocal of A/B since it is perpendicular. Plugging in the numbers gets you the above equation.

Left after party and you want to split it into four pieces what fraction of the original cake is each slice? A) 1/8. B) 1/4. C) 1/2. D) 2/1

Answers

Answer:

1/4

Step-by-step explanation:

because you are spitting it into fourths

Answer:

1/8

Step-by-step explanation:

Match the following items.

1 .
proper fraction
fraction in which the numerator is smaller than the denominator
2 .
numerator
a number with a whole number part and a fractional part
3 .
improper fraction
fractions that have the same numerical value
4 .
mixed number
fraction in which the numerator is larger than the denominator
5 .
equivalent fractions
part of the fraction below the fraction bar
6 .
denominator
part of the fraction above the fraction bar

Answers

 [tex]\bold{Hello!}\\\bold{Your~Answer~Is~Below!}[/tex]

______________________________

 [tex]\bold{Terms:}[/tex]

[tex]1.)~Proper~Fraction:[/tex]

[tex]\bold{Fraction~in~which~the~numerator~is~smaller~than~the~denominator.}[/tex][tex]\bold{Ex:\frac{9}{10} }[/tex]

[tex]2.)~Numerator:[/tex]

[tex]\bold{Part~of~the~fraction~above~the~fraction~bar.}[/tex][tex]\bold{Ex:\frac{7}{y} }[/tex]

[tex]3.)~Improper~Fraction:[/tex]

[tex]\bold{Fraction~in~which~the~numerator~is~larger~than~the~denominator.}[/tex][tex]\bold{Ex: \frac{13}{2} }[/tex]

[tex]4.)~Mixed~Number:[/tex]

[tex]\bold{A~number~with~a~whole~number~part~and~a~fractional~part.}[/tex][tex]\bold{Ex: 6\frac{1}{2} }[/tex]

[tex]5.)~Equivalent~Fractions:[/tex]

[tex]\bold{Fractions~that~have~the~same~numerical~value.}[/tex][tex]\bold{\frac{1}{2}=\frac{2}{4} }[/tex]

[tex]6.)~Denominator:[/tex]

[tex]\bold{Part~of~the~fraction~below~the~fraction~bar.}[/tex][tex]\bold{Ex: \frac{x}{6}}[/tex]

______________________________

 [tex]\bold{Hope~this~helps,}\\\bold{And~best~of~luck!}\\\\\bold{~~~~~~~-TotallyNotTrillex}[/tex]

Answer:

proper fraction

fraction in which the numerator is smaller than the denominator 8/12

numerator part of the fraction above the fraction bar

improper fraction in which the numerator is larger than the denominator

mixed number  a number with a whole number part and a fractional part

equivalent fractions fractions that have the same numerical value

denominator part of the fraction below the fraction bar

Can someone please help me

Answers

I think it’s 3 good luck

Answer:i think 8

Step-by-step explanation:

Two Angles are Supplementary when they add up to 180 degrees. They don't have to be next to each other, just so long as the total is 180 degrees.

Jens wanted to go fishing. He went to the
store and purchased the following items,
3 fishing lures at $4.49 each
4 floats at 794 each
12 Leuters at 23¢ each
Nhat was the total bill before tax?

QUESTION 1: what was the total bill before tax?
QUESTION 2: Write an mathematical expression to show how to calculate the total bill before tax. use a calculator to find the value of your expression.​

Answers

Answer:

Question 1: The total cost before tax is $47.99

Question 2: cant help ya there, not that smart sorry..

Step-by-step explanation:

Answer:

I'm just answering this for the points haha

What is the domain of the graph below

Answers

The second option is the correct answer.
The answer is B, (-2,4) and (7,infinity)

It costs $7.20 for 6 large candy bars. How many candy bars can you buy for $13.20?​

Answers

Answer:

11

Step-by-step explanation:

I divided 7.20 and 6 and got 1.2 so i did 13.20 divided by 1.2 and got 11

Answer: You can buy 11 candy bars.

Step-by-step explanation:

$7.20 =6

$7.20/6 =$1.20

$13.20/$1.20=11

If cheese costs $5.65 per pound, what will be the total cost of 2.2 pounds of cheese?​ plz help meee

Answers

The answer is $12.43

Multiply the two numbers.

Linda watched a video. The introduction is 2 minutes, and the video is 7 minutes. What percentage of the video is the introduction? Explain.

Answers

Answer:

22.222222%

Step-by-step explanation:

all together the entire video is 9 min and 2 of those are the intro so 2/9 and that as a percent is the answer

Answer: 22.23% (Infinitely Long)

Step-by-step explanation:

9 = 100%

9 (100%) - 7 (77.78%) [Also Infinitely Long] = 2 (22.23%) [Infinitely Long]

There ya go. :)

Find the value of x. Then find the measure of each labeled angle.

Answers

Answer:

x = 109°

The angle at the bottom right corner = 71°

Step-by-step explanation:

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