Math and Arithmetic

Geometry

Calculus

Factoring and Multiples

Length and Distance

Statistics

Numbers

Area

Mathematical Finance

# Algebra

## The use of letters to substitute unknown numbers to form an equation. Solve the equation to get the unknown number using different methods such as simultaneous equations and more.

###### Asked in Math and Arithmetic, Algebra

### Solution for Square root of 2.5?

Hi y’all.
I am notoriously bad at math, somehow got scooted into intermediate algebra. I am stuck on one problem, and was wondering if anyone could show me why / how I am getting stuck.
X2 -5x-6=0
I know that I need to find two numbers that will multiply to -6, and add up to -5.
I found 2 & 3. But when I multiply negative 2&3, they become positive six. I can’t add one of them positive, one...

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###### Asked in Math and Arithmetic, Brain Teasers and Logic Puzzles, Algebra

### There is a bus with 7 children inside. Each child has 7 bags. Inside each bag there are 7 big cats. Each big cat has 7 small cats. All cats have 4 legs each. How many legs are on the bus?

As a riddle, the answer is zero legs on the bus since
the bus has wheels instead of legs.
But as a maths problem; It's not a tricked
question -- just a straightforward maths problem
Confirmed answer is 10990 legs.
§ Let's say the whole situation simply :
- There are 7 girls.
- Each girl has 7 backpack
- Each backpack has 7 big cats
- Each big cat has 7 little small cats.
§ Question: How many legs are there in the
bus?
§ Let's...

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###### Asked in Math and Arithmetic, Algebra

### Does google plex equal infinity?

No. It is a very large number, but not infinite.

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###### Asked in Math and Arithmetic, Algebra, Geometry

### How many faces vertices and edges does a cube have?

A cube has 6 faces,
8 vertices,
12 edges.

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###### Asked in Math and Arithmetic, Algebra, Area

### How much tonnage air conditioner is required for 2779 sq ft?

It depends a great deal on where you live and how well your home
is insulated. Square feet is not a great help when planning the
size of an air conditioner. It is very useful to also have the
cubic feet in the home, along with the sizes and types of
windows.
Where I live in the northwest US, a 3-ton unit would do the
trick easily, but then, we do not get the intensely hot, long
summers as you might in...

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###### Asked in Math and Arithmetic, Algebra

### Find the sum of the opposite of -18 and its additive inverse?

the opposite of negative 18 is positive 18. It's just like absolute value. |-18| is 18 because 18 is 18 steps away from 0 so is -18 like how it is 18 away from 0 and not -18 away from 0. -18 away from 0 is not a thing. So therefore, the opposite of negative 18 is positive 18 because the opposite of negative is postitve....

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###### Asked in Algebra, Factoring and Multiples, Numbers

### What are the shared prime factors of 36 and 144?

2 and 3. In fact, 2 and 3 are the ONLY prime factors of
both.
36 = 22 x 32.
144 = 24 x 32.
...

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###### Asked in Algebra, Math and Arithmetic

### What is the word form for 0.000001?

The term is written as "One millionth." As a prefix in SI
measurements it is "micro". For example, 0.000001 grams is the same
as 1 microgram. 0.000001 metres is called a micrometer but also has
the special name "micron".
Sometimes expressed as "zero point zero zero zero zero zero
one"
...

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###### Asked in Jobs & Education, Math and Arithmetic, Algebra, Geometry

### How do you find the radius if you have the circumference?

Circumference divided by pi to find the diameter then divide
that by 2 to give you answer!!
Formula: R=c/pi/2
eg.
circumference =60 so,
60 divided by pi = 19.098, then
divide 19.098 by 2 to give you
9.549!!
...

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###### Asked in Algebra, Definitions

### What is the meaning of negative traits?

In the personal sense, it means something negative in your
personality like being negative (pessimistic) or not concentrating
in school.
In algebra it means a minus number below zero eg. -2 is 2 less
than zero.
An extra note - if the equation is 5--5 (five minus minus five)
then just add five because two minuses or negatives equal a plus or
positive.
Sorry if I got the wrong meaning of what you asked!
...

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###### Asked in Math and Arithmetic, Algebra, Numbers

### What is 40 cubed?

To cube a number means simply to multiply that number by itself
3 times. To work out 40 cubed you would simply go:
403 = 40 x 40 x 40
40 x 40 = 1,600
1,600 x 40 = 64,000
403=64,000
Therefore, 40 cubed equals 64,000.
The phrase "multiply that number by itself 3 times." can cause
confusion.
Sometimes, instead of multiplying it thrice (the number itself)
others, due to confusion, just multiply the number by 3... take
note it's cube...
What do you get if you...

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###### Asked in Algebra, Economics, Business Accounting and Bookkeeping

### Is nett price inclusive of vat?

No, Net Amount is the amount before VAT is added. Once VAT is
added it then becomes the Gross Amount. Net price is exclusive of
VAT
...

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###### Asked in Math and Arithmetic, Algebra

### How do you solve 4x3 equals 12x2-x-3 equals 0?

4x3= 12x2-x-3
The answers are x= -.4324426. or x= .6157299 or x= 2.816713
These are approximations.
...

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###### Asked in Algebra, Numbers , Percentages, Fractions, and Decimal Values

### What is the fraction 8 over 25 as a percent?

To convert a fraction (or decimal) to percentage, multiply by
100, thus:
8/25 = 8/25 x 100%
= 32%
...

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###### Asked in Algebra, Pirates, Proofs

### Vjersha per 7 - 8 marsin?

7 Marsi
Festën e mësuesit
Ne do ta festojmë
Lulet më të bukura
Ne do ti dhurojmë.
Vijmë tek ti mësues
Buzëqeshjen ta dhurojmë
Kënga krahët reh si flutur
Midis jush jam e lumtur.
...

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###### Asked in Playstation Network, Algebra

### How are labels in each period alike?

It depends on what kind of label it is and what kind of period
it is.

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###### Asked in Geometry, Math and Arithmetic, Algebra

### What instrument measures angles?

A protractor, compass, speed square, goniometer, theodolites,
sextant, or angle finder can be used to measure angles.
A protractor is a circular or semi circular instrument for
measuring angles and some have existed from ancient times. A half
circular protractor is marked for 180 degrees and a full circle for
360 degrees. Protractors usually have two sets of numbers going in
opposite directions, so be careful which side you use. When in
doubt you should ask yourself is the angle greater or...

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###### Asked in Math and Arithmetic, Algebra

### What is one-sixth the sum of r and 7?

(r+7)/6, assuming r is a variable.

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###### Asked in Math and Arithmetic, Algebra, Length and Distance

### 18 feet equals how many meters?

1 foot equals 0.3048 meters
18 feet X 0.3048 =
5.4864 meters

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###### Asked in Math and Arithmetic, Algebra

### How do you simplify mixed fractions?

Sometimes you can't simplify a mixed fraction, but simplifying a
mixed fraction is just like simplifying an original fraction.
For example: You can not simplify 1 and 3/4, because 3/4 can not
be simplified.
But 1 and 10/16 can be simplified.
To do this:
You take the actual fraction part 10/16
Find a LCD (Least Common Denominator) for this it is 2
Divide both the reciprocal and denominator by this number
10 divided by 2=5, 16 divided by 2=8
Put the new divided numbers where...

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###### Asked in Algebra, Numbers , Percentages, Fractions, and Decimal Values

### What is a decimal of 140 percent?

The percent sign % can be defined as "divide by 100".
So the decimal of 140% would be 140/100 or 1.4
So if you wanted to know what 140% of any number was you could
multiply by
1.4 i.e. 140% of 50 is 50 x 1.4 = 70, or since multiplication is
distributive you
could also do this (140 x 50)/100 which will also give you
70
1.4
...

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###### Asked in Algebra, Miscellaneous Vehicles

### Why hovercraft are not more common?

Hovercraft are becoming more common, and as technology improves,
they have become quieter and more affordable. Hovercraft are very
useful for rescuing people from floods, mud, ice and sand - as
global warming increases the risk of flooding, as witnessed in
Pakistan and China, hovercraft can play a very important role.
Leisure hovercraft are now available, see the related link below,
and small patrol hovercraft can play an important role in homeland
security, particularly for patrolling coastal areas. Small race
hovercraft have very...

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###### Asked in Jokes and Riddles, Math and Arithmetic, Algebra

### When does 9 plus 4 equal 1?

9 a.m + 4
hours = 1 p.m.
More generally, when you are doing modulus arithmetic,
specifically mod 12.
ie.
(9+4) mod 12 = 1
not as tough as 9 pm + 4 hours = 1 am
...

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