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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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ou live in the building on the left in the drawing, and a friend lives in the other building. the two of you are having a discus
Alenkinab [10]

Answer:

1.3

Friend is wrong

Step-by-step explanation:

Given:

friend's claim: height of his building is more than 1.50 times the height of yours

line of sight to the top edge of the other building makes an angle of 21° above the horizontal

line of sight to the base of the other building makes an angle of 52° below the horizontal

Solution:

Let A be the height of your building is A

Let B+A his building is B higher than yours.

Let the distance between the buildings is x.  

then

tan 52 = A/x

tan 21 = B/x  

A/B = tan 52 / tan 21

      =  1.27994 / 0.38386

A/B = 3.33

(A + B) / A = 1.5 0

A/A + B/A = 1.50

1 + B/A = 1.50

B/A is basically (B/x) / (A/x)

So

1+ 3.33 / 3.33

= 4.33/3.33

= 1.3

Since 1.3 is not equal to 1.5

Hence the friend's claim is wrong.

5 0
4 years ago
Want 20 POINTS easy answer these questions
horsena [70]
148 divided by 28= 5.28

220 divided by 12= 18.33

192 divided by 15=12.80

20 divided by 3=6.66
6 0
4 years ago
Read 2 more answers
What is the solution to the equation? ^5√x+7 = -2 (Please help!)
Masja [62]

Step-by-step explanation:

Here we will, Provide index power 5 on both the sides, so that we can cancel out the 5th power root in the L.H.S

so we get as,

==> x+7 = (-2)^5

==> x+7 = -32

==> x = -32-7

==> x = -39

hence, x = -39

Option A.) is correct.

7 0
2 years ago
Four points are labled on the number line what point best represents 1/3​
Elodia [21]

Answer:

Step-by-step explanation:

7 0
3 years ago
I Have Some Questions For You Guys, A construction crew cut down thousands of acres of forest to build apartment buildings. How
Novosadov [1.4K]

Answer:

A. The population of deer will have to find a new habitat so they will have food to eat.

Step-by-step explanation:

Definitely not the others if you need explanation ask :)

3 0
3 years ago
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