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Kobotan [32]
3 years ago
9

Alright Soldier I need help, Solve for Percent Error, Calculate the percent error if the experimental value of the density of go

ld is 18.7 g/cm^3 and the accepted value is 19.3 g/cm^3
Mathematics
1 answer:
Dima020 [189]3 years ago
7 0

Answer:

Step-by-step explanation:

so the steps to doing this are as follows :

Subtract the accepted value from the experimental value.

Take the absolute value of step 1.

Divide that answer by the accepted value.

Multiply that answer by 100 and add the % symbol to express the answer as a percentage.

|18.7-19.3|/19.3 = 0.031088 * 100% = 3.1%

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Answer:

The area of the trapezoid is 57.5 square inches

Step-by-step explanation:

we know that

The trapezoid QRST can be divided into a rectangle QRDT and an isosceles right triangle RSD

see the attached figure to better understand the problem

step 1

The area of rectangle is given by the formula

A=((QR)(RD)

we have

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substitute

A=((9)(5)=45\ in^2

step 2

Find the area of the isosceles right triangle

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we have

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substitute

A=\frac{1}{2}(5)(5)=12.5\ in^2

step 3

Adds the areas

A=45+12.5=57.5\ in^2

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