Math and Arithmetic

Math is the study of abstractions. Math allows us to isolate one or a few features such as the number, shape or direction of some kind of object. Then we can study what can be learned about the behavior of those features while ignoring everything else about the object.

1,144,011 Questions
Algebra
Math and Arithmetic

What is roughness ratio?

In a pipe it is the roughness of the pipe over the diameter of the pipe

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Math and Arithmetic
Physics
Kinematics
How To

How to find initial velocity when given final velocity acceleration and distance traveled?

D=vt+1/2(at^2)
Where
D=Distance
v=Initial Velocity
a=Acceleration
t=Time
Except we do not know the time t. Use v2 = u2 - 2aD. u is final velocity.

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Math and Arithmetic
Statistics
Factoring and Multiples

Is the sample mean always the most frequently occurring value?

No.The Most Frequently Occurring Value Is Called a Mode.While A Mean Is Also Known as An Average.You get The Answers In To different Way's And They Are Not Always The Same.

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Math and Arithmetic
Units of Measure
Geometry
Volume

What does 115 cubic meters look like?

There are infinite possible configurations:

> 115 m**3 ~ 10m x 10m x 1m

> 115 m**3 ~ 5m x 5m x 5m

> 115 m**3 ~ sphere with a radius of ~3m

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Math and Arithmetic
Chemistry
Geometry

How two ice cubes can be exactly the same size with the same dimensions but have different density?

The simplest is that one of the cubes is hollow - except that in that case it would not be a proper cube.

The next simplest answer is the amount of air dissolved in the water before it was frozen.

A more complex answer is the proportions of heavier isotopes of oxygen and hydrogen in the water molecules.

309310311
Personal Finance
Loans
Math and Arithmetic
Mathematical Finance
Algebra
Money Management

Calculate the simple interest on a loan with a principal of 6000 an iterest of 7.39 percent and a term of four years?

60 x 7.39 x 4 ie 1773.60

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Math and Arithmetic
Units of Measure
Physics

Is 30 dB 30 times greater than the thresholds of hearing or 103?

Assuming 0 decibel is approximately the threshold of hearing (different scales are sometimes used!), 103 is the correct answer. Every 10 decibels means an increase by a factor of 10, so 30 decibels means you have to apply the factor of 10 3 times: 10 x 10 x 10.

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Math and Arithmetic
Time

How many minutes and seconds is 270 seconds?

4 minutes 30 seconds

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Math and Arithmetic

The ages of a father and son add up ton 66 the father's age is the son's age reversed How old is each one?

42 and 24

or

51 and 15

or, possibly, 60 and 06.

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Math and Arithmetic
C Programming

WAP to find number of digit in a number?

The core of it:

for (ndig=1; (n/=10)!=0; ++ndig);

309310311
Math and Arithmetic
Algebra

What does .417 AV mean?

417 = 10k gold. AV is likely the makers mark. Assuming you are seeing this on a ring or other pirce of jewelry.

309310311
Math and Arithmetic
Algebra
Geometry

When does the v-cube 8 come out?

November of 2009.

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History of Science
Math and Arithmetic

13 18 16 21 19?

Is this a next in the sequence thing? Any reason why the obvious 24 has been ignored?

+5 -2

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Math and Arithmetic
Area

How many square yards in an area 30 feet long by 50 feet wide?

30 ft. x 50 ft. = 1500 sq. ft. = 1500/9 sq. yd. = 166 2/3 sq. yd.

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Math and Arithmetic
Percentages, Fractions, and Decimal Values

What is 002 as a percent?

.002 as a percent is .00002%. If 002 does not have a decimal in front of it, then it means 2, which is .02% To find a percent, just move the decimal two places to the left. To turn a percent into a decimal, move the decimal two places to the right.

The reason why this works:

A percent is really a number over one hundred. So 2% is really 2/100, which when divided out becomes .02.

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Math and Arithmetic
Algebra

What does it mean if you urinate less than usual or not at all?

Don't know how this is a math question... it's more medical. If you are urinating less than usual, it probably means you're dehydrated. Being dehydrated for long periods of time is horrible for your health. You need to drink more water, your body needs it to live. Don't only drink colas, coffee, or juice; you need pure water.

304305306
Math and Arithmetic
Percentages, Fractions, and Decimal Values

How much money is 3.3 percent?

3.3% of what? To calculate 3.3%, you multiply some amount by 3.3/100, which is the same as multiplying by 0.033.

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Math and Arithmetic

What is the divisor in maths?

There are no such things as "maths," but in mathematics, the divisor

is the number by which another number is divided. For example, in the

equation 10:5=2, 5 is the divisor. 10 is the dividend, and 2 is the quotient.

297298299
Math and Arithmetic
Factoring and Multiples

What is the GCF of 1176 and 1617?

The GCF is 147.

287288289
Math and Arithmetic
Algebra
Geometry

How do you find the third vertex of a triangle when given two other points and an area?

You cannot. At least, not one point.

If the distance between the two given points is b, and the area of the triangle is A, then let h = 2A/b

Then draw two lines parallel to the line formed by the two given points - one above and one below, each of these lines being at a distance h from the first line.

Any point on either of these two lines will meet your requirements.

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Math and Arithmetic
Topology

How do you define the least upper bound of a subset?

Let (B, ≤) be a partially ordered set and let CB. An upper bound for C is an element b Є Bsuch that cb for each c Є C. If m is an upper bound for C, and if m ≤ b for each upper bound b of C, then m is a least upper bound of C. C can only have one least upper bound, and it may not have any at all (depending on B). The least upper bound of a set C is often written as lub C.

See related links for more information.

307308309
Math and Arithmetic
Algebra
Factoring and Multiples

What Is The LCM Of 20 25 And 30?

The Least Common Multiple (LCM) of 20, 25, and 30 is 300.

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Math and Arithmetic
Algebra
Geometry

Is every inscribed angle that intercepts a semicircle is a right angle or an acute angle or a obtuse angle?

a right angle

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Math and Arithmetic
Algebra

How do you write 5 10 thousandths?

You write 5 10 thousandths...

0.0005 in a decimal.

5/10,000 in a fraction.

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Agriculture
Math and Arithmetic
Area

How many Sq ft equals to viga?

convert viga to square feet

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