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3 years ago

How is density calculated given mass and volume

Mathematics

2 answers:

SpyIntel [72]3 years ago

8 0

Step-by-step explanation:

firstly write the formula which is

density=mass÷volume

then replace with what you have been given

Damm [24]3 years ago

7 0

Answer:

Density is mass÷volume

Step-by-step explanation:

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How can Diego package all the 64 cookies so that each bag has the same number of them? How many bags can we make and how many co

anygoal [31]

Answer:

see below

Step-by-step explanation:

There are 7 divisors of 64. Each represents a possible number of bags of cookies:

1 bag of 64 cookies
2 bags of 32 cookies
4 bags of 16 cookies
8 bags of 8 cookies
16 bags of 4 cookies
32 bags of 2 cookies
64 bags of 1 cookie

5 0

3 years ago

how much wrapping paper would you need to cover a rectangular that is 18.25 inches by 12inches by 3 inches if you need 10% more

natita [175]

Answer: 681 square inch

Step-by-step explanation:

Hi, we have to apply the formula for the surface area:

A = 2wl + 2lh + 2hw

Where:

w: width

l: length

h: height

Replacing with the values given:

A = (2x12x18.25) + (2x12x3)+(2x18.25x3)

A= 438+72+109.25

A=619.5 in2

Since it has to be 10% more than the surface.

619.5 x (10/100) = 61.95 in2

Adding that value to the surface area

619.5+61.95 = 681.45in2 = 681 in2

4 0

3 years ago

Please Help. I’m confused. I will give Brainliest Answer.

RUDIKE [14]

Answer:

Step-by-step explanation:

The other situations do not represent a 60% probability.

B is a situation in which 40% of people prefer aisle seats.

C is a situation in which 33% of people prefer aisle seats

D is a situation in which 66% of people prefer aisle seats.

3 0

3 years ago

I need help on this question I’m confused I think a &b are the same and c &d are different but I’m not to sure !

Nina [5.8K]

<h3>Answer: They're all the same</h3>

====================================================

Reason:

$2^6$ means we have 6 copies of "2" multiplied out as shown in choice B. That explains how A and B are the same, and we can say

$2^6 = (2*2*2)*(2*2*2)$

The parenthesis are optional, but I find they're handy to count the '2's easier.

----------------

Now notice that

$2^3 = 2*2*2$

So,

$2^6 = (2*2*2)*(2*2*2)\\\\2^6 = (2^3)*(2^3)\\\\2^6 = (2^3)^2\\\\$

The last step is possible because we have two copies of $2^3$ multiplied together.

This shows that choice C is equivalent to A and B.

-------------------

Lastly,

$2^6 = (2*2*2)*(2*2*2)\\\\2^6 = (2*2)*(2*2)*(2*2)\\\\2^6 = (2^2)*(2^2)*(2^2)\\\\2^6 = (2^2)^3\\\\$

The jump to the last step is possible because we have three copies of $2^2$ multiplied together.

This shows choice D is equivalent to the others.

All four expressions are the same.

They represent different ways to say the same number. That number being 64.

3 0

2 years ago

Which equation is the inverse of y = 16x2 + 1? y = plus-or-minus StartRoot StartFraction x Over 16 EndFraction minus 1 EndRoot y

kifflom [539]

Answer:

The inverse is ±sqrt((x-1))/ 4

Step-by-step explanation:

y = 16x^2 + 1

To find the inverse, exchange x and y

x = 16 y^2 +1

Then solve for y

Subtract 1

x-1 = 16 y^2

Divide by 16

(x-1)/16 = y^2

Take the square root of each side

±sqrt((x-1)/16) = sqrt(y^2)

±sqrt((x-1))/ sqrt(16) = y

±sqrt((x-1))/ 4 = y

The inverse is ±sqrt((x-1))/ 4

8 0

3 years ago