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Sergeu [11.5K]
3 years ago
12

You calculate that your semester average in history is 97.5. When you get your report card, your average is 96. What was the per

cent error of your calculation?
Chemistry
2 answers:
andrew11 [14]3 years ago
5 0
Ok percent error is abs(calculated-actual)/actual(100%)

So 1.5/96 *100%
Nitella [24]3 years ago
3 0

Answer:

The percentage error is 1.56 %.

Explanation:

To calculate the percentage error, we use the equation:

\%\text{ error}=\frac{|\text{Experimental value - Accepted value}|}{\text{Accepted value}}\times 100

We are given:

Experimental value of an average = 97.5

Accepted value of an average = 96  

Putting values in above equation, we get:

\%\text{ error}=\frac{|97.5-96|}{96}\times 100\\\\\%\text{ error}=1.56\%

Hence, the percentage error in our calculation is 1.56 %.

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What describes how computer programs convert design sketches into three dimensional images
weeeeeb [17]

Answer:

The programs take two-dimensional images and allow the user to manipulate cubes and prisms to create their design sketches.

Explanation:

Instead of working with squares and triangles, the programs allow the users to manipulate cubes and prisms to create their design sketches. Additionally, the programs can take two-dimensional pictures and convert them to possible three-dimensional images.

I got you bro :)

Sorry he took your points :(

- massmaster34

4 0
3 years ago
What is the acceleration of a ball traveling horizontally with an initial velocity of 20 meters/second and, 2.0 seconds later, a
Pepsi [2]

Answer: <em>Acceleration of the ball in the given system is 5 meter per Second Square</em>

<em>The laws of motion are used to determine various aspects of an object in motion</em>.

Explanation:

Applying the first law of motion to calculate acceleration; if formula used in first law is given as v=u+at

Here we have a final velocity as 40 meter per second and initial velocity as 20 meter per second and time span is given as 2 second applying the given values in the given equation and finding the value of a

                            30=20+a \times 2 = a=5 m/s^2

6 0
3 years ago
Is brittleness a chemical or physical property?
Sergio039 [100]
It is a physical property

5 0
4 years ago
Read 2 more answers
14.2 grams of Na2 so4 is dissolved in water to make a 2.50 L solution.What is molarity of solution?
FrozenT [24]

Answer:

The answer to your question is 0.04 M

Explanation:

Data

mass of Na₂SO₄ = 14.2 g

volume = 2.50 l

Molarity = ?

Process

1.- Calculate the molar mass of Na₂SO₄

Na₂SO₄ = (23 x 2) + (32 x 1) + (16 x 4) = 46 + 32 + 64 = 142 g

2.- Calculate the number of moles of Na₂SO₄

                    142 g of Na₂SO₄ ------------------- 1 mol

                     14.2 g of Na₂SO₄ ------------------  x

                                   x = (14.2 x 1) / 142

                                   x = 0.1 moles

3.- Calculate the molarity

Molarity = moles /volume

-Substitution

Molarity = 0.1 / 2.5

-Result

Molarity = 0.04

6 0
3 years ago
How many atom will be present in2.7 g of aluminumal=22 na=6.02×^23​
Elden [556K]

Answer:

just add ⅜⁸ and ⅖⁵

Explanation:

because I was told it awnsers almost all questions

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4 years ago
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