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marshall27 [118]
2 years ago
7

HELPP!!! BRAINIEST IF CORRECT!!

Mathematics
2 answers:
Tatiana [17]2 years ago
8 0

Answer:

I think the answer is 60 or 70 or 65

Jet001 [13]2 years ago
5 0

Answer:

6.25

Step-by-step explanation:

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Please answer this question!I don’t understand it-Question number 2
Tasya [4]

Answer: The greatest depth of the Southern Ocean is 7.24

Step-by-step explanation:

So, if you add all the greatest depths up, you get 33.23

(33.23 + x)/5 = 8.094

Multiply each side by 5

33.23 + x = 40.47

Subtract 33.23 from each side

x = 7.24

You can check this by adding all the numbers up and dividing them by 5

40.47/5 = 8.094

7 0
3 years ago
Read 2 more answers
A scientist measures a substance to be 0.8 grams. Calculate the percent of error in the measurement. Show all work for full cred
Volgvan
You'll need to give a bit more information for the question to be answered. You can only calculate the percentage of error if you know what the mass of the substance *should be* and what you've *measured* it to be.

In other words, if a substance has a mass of 0.55 grams and you measure it to be 0.80 grams, then the percent of error would be:

percent of error = { | measured value - actual value | / actual value } x 100%

So, in this case:

percent of error = { | 0.80 - 0.55 | / 0.55 } x 100%
percent of error = { | 0.25 | / 0.55 } x 100%
percent of error = 0.4545 x 100%
percent of error = 45.45%

So, in order to calculate the percent of error, you'll need to know what these two measurements are. Once you know these, plug them into the formula above and you should be all set!
6 0
3 years ago
If the mass of a material is 44 grams and the volume of the material is 6 cm^3, what would the density of the material be?
Svetlanka [38]

Density is mass per unit volume.

For the given material that has a mass of 44 grams occupying a volume of 6 cm^3, we divide the mass by the volume, i.e.

density of material = 44 grams / 6 cm^3 = 44/6 grams/cm^3 = 7.3 g/cm^3 (to two significant figures)

4 0
3 years ago
The perimeter of a rectangular garden is 52 feet the length of the garden is 4 less than twice the width what is the widththe
GaryK [48]
W= Width 
L= Length

2L+2w=52
2W-4=L
Plug in L into the first equation
2(2W-4)+2w=52
4w-8+2w=52
6W=60
W=10 feet
Plug that into the second equation
2(10)-4=L
L=16
4 0
3 years ago
The diagram shows a regular pentagon
Triss [41]

Answer:

a = 540°

b= 180°

Step-by-step explanation:

a= pentagon has 5 sides which means 180 × 5= 540

b= 540÷5=180

5 0
3 years ago
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