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3 years ago

PLSSSSS!!!!!! HELP ME!!!! I WIL MARK U!!!!!

Mathematics

2 answers:

uysha [10]3 years ago

6 0

Answer:

-44

Step-by-step explanation:

You multiply 11 times 2 to the second power then multiply negative 1

shutvik [7]3 years ago

5 0

-44
That is bro it’s easy

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enyata [817]

I think its associative property I believe if not then Im not so
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4 0

3 years ago

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

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

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

$V= 0.5236\ ft^3$

2) Use the density formula to find the mass

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

$m = vd$

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

<em>The answer is 0.02 pounds</em>

5 0

3 years ago

PLZZZZZZZZZ ANSWER WILL GIVE BRAINLEAST PLZZZZZZZZZZZZZZZZZOmar flies his plane out of a local airport. The airport is at an alt

Nana76 [90]

Answer:

Step-by-step explanation:

I learned this like 4 years ago. I tried.

3 0

3 years ago

Y=7 X=2 what is the value of x when y =21

lara [203]

Step-by-step explanation:

x might equal 6 because 21 divided by 7 is 3 so u multiply 3 by 2. You get 6. i think x equals 6. Hope this is right and hope this helped!

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4 years ago

Read 2 more answers

HELP PLZ TIMED TEST 10 ponits

Archy [21]

Answer:

4... hope this will help

Step-by-step explanation:

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4 years ago