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Naddik [55]
2 years ago
8

Volume is always measured in square units. True False

Mathematics
2 answers:
vfiekz [6]2 years ago
8 0
Hello there!

This statement would be know to be (false).

Volume is something that is used to help add what is already measured. Volume can be measured in all different aspects, not only using squared units. This would be false because volume has to ability to be measure in any way that it would want to, but it would only have to complete its purpose, to add what the object is.

Your answer: False.
bogdanovich [222]2 years ago
4 0
Hello,

The answer is option B "false".

Reason:

The answer is false because the volume can be measure in anyway for example: feet, yards.

If you need anymore help feel free to ask me!

Hope this helps!

~Nonportrit
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What is the exact value of arccos(−2√2) ?
Strike441 [17]

Answer:

See explanation

Step-by-step explanation:

The range of the cosine function is -1\le \cos x\le 1

Therefore arc \cos (-2\sqrt{2}) is not defined.

Assuming your question is rather arc \cos (-\frac{\sqrt{2}}{2})

Then arc \cos (-\frac{\sqrt{2}}{2})=\pi-arc \cos (\frac{\sqrt{2}}{2})  in the second quadrant.

arc \cos (-\frac{\sqrt{2}}{2})=\pi-\frac{\pi}{4}

arc \cos (-\frac{\sqrt{2}}{2})=\frac{3\pi}{4}

4 0
3 years ago
in 1950, the population of a city was about 800,000 people. over the next 50 years , the population increased to 1.3 million. fi
nordsb [41]
Subtract 1.3 million from 800,000 and you get ur answer
5 0
3 years ago
If a = -1, b = 2, and c = 3, then a + 4b + 2c is equal to:
blondinia [14]

Answer:

13

Step-by-step explanation:

-1+4*2+2*3

=-1+8+6

13

6 0
3 years ago
Simplify: Negative four and one-fifth minus negative thirteen and one-tenth
olga_2 [115]
-4 1÷5 - (- 13 1÷10)

first we should turn these into improper fractions by multiplying the whole number by the denominator then add the numerator.

4 × 5 = 20 + 1 = 21
13 × 10 = 130 + 1 = 131

(-21/5) - (-131/10)

To subtract fractions we want to find a common denominator so we can multiply the numerator and denominator of (-21/5) by 2 to get (-42/10)

(-42/10) - (-131/10)

Since we are subtracting a negative, that becomes a positive

(-42/10) + 131/10

131 - 42 = 89

89/10

Now we can change it back into a mixed fraction:

8 and nine-tenths or 8 9÷10
3 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}

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

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

5 0
2 years ago
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