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2 years ago

Hown do you convert 8 inches into cm

Mathematics

1 answer:

lakkis [162]2 years ago

7 0

Multiply your length value by 2.54. One inch is equal to roughly 2.54 centimeters,

Its 20.32 cm btw.

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What is the prime factorization for 180?

Svetlanka [38]

180
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2^2 * 3^2 * 5 <===

8 0

2 years ago

if the pool has a constant depth of 1.5 meters, what is the volume of the pool? Rounded to the nearest tenth

Delicious77 [7]

Answer:

Step-by-step explanation:

because if you round the 1.5 it = 2 and the the pool would be the same on all sides so it would be 2*2*2 to get depth time height times length to get your total of 8. sorry if i get this wrong, just trying to help

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2 years ago

Simplify. Consider all the cases. |7-(12-x)|

Phantasy [73]

Answer: |x-5|

Step-by-step explanation:

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2 years ago

Prove that sinxtanx=1/cosx - cosx

maks197457 [2]

Answer:

See below

Step-by-step explanation:

We want to prove that

$\sin(x)\tan(x) = \dfrac{1}{\cos(x)} - \cos(x), \forall x \in\mathbb{R}$

Taking the RHS, note

$\dfrac{1}{\cos(x)} - \cos(x) = \dfrac{1}{\cos(x)} - \dfrac{\cos(x) \cos(x)}{\cos(x)} = \dfrac{1-\cos^2(x)}{\cos(x)}$

Remember that

$\sin^2(x) + \cos^2(x) =1 \implies 1- \cos^2(x) =\sin^2(x)$

Therefore,

$\dfrac{1-\cos^2(x)}{\cos(x)} = \dfrac{\sin^2(x)}{\cos(x)} = \dfrac{\sin(x)\sin(x)}{\cos(x)}$

Once

$\dfrac{\sin(x)}{\cos(x)} = \tan(x)$

Then,

$\dfrac{\sin(x)\sin(x)}{\cos(x)} = \sin(x)\tan(x)$

Hence, it is proved

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2 years ago

The product of 7/8 and 9/10 is greater then 9/10

kati45 [8]

No the product will be less than 9/10.
This can be easily seen if the fractions are converted into decimals.
The decimal form of the product of 7/8 and 9/10 is 0.867 while the decimal form of 9/10 is 0.9. Therefore, the product of 7/8 and 9/10 is not greater than 9/10

3 0

3 years ago

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