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Ira Lisetskai [31]

4 years ago

8

The exact value for the density of aluminum is 2.669g/cm3. Working in the science lab at school, Joseph finds the density of a p

iece of aluminum to be 2.75g/cm3. What is Joseph's percent error?

1 answer:

lozanna [386]4 years ago

6 0

The formula for percent error is (M-A)/A X 100

M= the amount of the sample measured

A= the exact amount of the sample

so, 2.75-2.699=0.51/cm3

051/2.699=.01889

.01889 x 100=1.9% :)))

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different animals have different fields of view. humans can generally see a 180° arc in front of them. horses can see 215° arc.

IgorLugansk [536]

Answer:

The area of the riders field of view is 987.5 square yards.

Step-by-step explanation:

The human has a 180° arc view. If the rider can see only 25 yards, the area of the riders field of view is a semi-circle (180° arc) of 25 yards of radius.

The semi-circle of 25 yards of radius has an area of:

$S=\dfrac{1}{2}\pi r^2=\dfrac{1}{2}\cdot3.16\cdot (25)^2=\dfrac{1}{2}\cdot3.16\cdot625=987.5$

The area of the riders field of view is 987.5 square yards.

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3 years ago

The first term of the original sequence is 2. The first difference of a sequence is the arithmetic sequence 1,3,5,7,9... Find th

zubka84 [21]

Answer:

Step-by-step explanation:

2,2+1,2+1+3,2+1+3+5,...

2,3,6,11,18,27

8 0

4 years ago

Find the 50th term of this arithmetic sequence: 6, 13, 20, 27, .

KonstantinChe [14]

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6 0

3 years ago

Read 2 more answers

13 gallons is the same as how many liters?<br> Hint: 1 gal 3.8 L

I am Lyosha [343]

Answer:

49.4

Step-by-step explanation:

So, 1 Gallon = 3.8 Liters. We need to find how many liters are in 13 gallons.

All we need to do is multiply our 3.8 liters (1 gallon) by 13 to find out how many liters 13 gallons is.

3.8 x 13 = 49.4

Your answer is 49.4.

<u>Hope this helps and have a nice day!</u>

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3 years ago

Independent <br>dependent<br>constants

yawa3891 [41]

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3 years ago