If angle 2 is 97 what is the measurement of angle 3

Helium is used for balloons because it is less dense than air. This is what allows helium balloons to rise. Suppose a helium- ai

Kay [80]

Answer: Option A

About 0.02 pounds

Step-by-step explanation:

We know that density is defined as:

$d = \frac{m}{v}$

Where

d is the density

m is the mass

v is the volume

We want to calculate the helium-air mass of a spherical balloon and we know its density and the diameter of the balloon.

Then we can calculate its mass.

1) We use the diameter of the spherical globe to calculate its volume.

The volume of a sphere is:

$V = \frac{4}{3}\pi r ^ 3$

and

$radius = \frac{diameter}{2}$

So

$V = \frac{4}{3}\pi(\frac{d}{2}) ^ 3\\\\V = \frac{4}{3}\pi(\frac{1}{2}) ^ 3$

$V= 0.5236\ ft^3$

2) Use the density formula to find the mass

$d = \frac{m}{v}$

$m = vd$

$m = (0.5236\ ft^3)*(0.04\ \frac{pound}{ft^3})\\\\m = 0.02\ pounds$

The answer is 0.02 pounds

5 0

2 years ago

If the translation of (xy)->(x-5, y+2) was applied to the triangle ABC below. what would be the coordinates for A' after the

Ludmilka [50]

There is no triangle. Maybe the image messed up?

4 0

3 years ago

The initial population of a town is 4500, and it grows with a doubling time of 10 years. What will the population be in 12 years

Rufina [12.5K]

In the given problem, there are several vital informations that have been provided. based on these information's the answer to the asked question can be easily reached. It is given that the initial population of the town is 4500. It doubles in every 10 years. The number of population in 12 years is needed to be found.
Initial population of the town = 4500
In 10 years the population of the town = 4500 * 2
= 9000
Then population of the town in 12 years = (9000/10) * 12
= 10800
So the population of the town in 12 years will be 10800.

4 0

2 years ago

Jenny bakes 10 cookies. She puts 7 chocolate chip on each cookie. Draw a tape diagram and label the total amount of chocolate ch

vivado [14]

7c.X10

70 chocolate chips

3 0

2 years ago

Lyle wants to build a rectangular dog pen with a length that is 12 feet more than the width. Lyle can afford no more than 560 fe

zzz [600]

Answer:

2(2W+12) < 560

Step-by-step explanation:

Perimeter of a rectangular dog pen P = 2(L+W) where;

L is the length of the dog pen

W is the width of the dog pen

If Lyle wants to build a rectangular dog pen with a length that is 12 feet more than the width, then L = W+12

If Lyle can afford no more than 560 feet of fence, this means that the perimeter cannot be more than 560feet i.e P<560

The inequality to show that the perimeter of the dog pen can be no more than 560 feet is expressed as P < 2(L+W)

Substituting the given parameters;

2([W+12]+W)<560

2(2W+12)<560

Hence the inequality to show that the perimeter of the dog pen can be no more than 560 feet is 2(2W+12)<560

4 0

2 years ago