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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.

227,579 Questions

What is the mean of 15 10 15?

Mean is calculated by adding the numbers, then divide by the count of numbers.

The count is 3 in this case. 15 + 10 + 15 = 40, so mean = 40/3 = 13.3333.....

What is x times 1?

x times 1 is x. Anything times 1 is still that same anything.

What equals 37 in multiplication?

37 is a prime number, so the only factors that multiply to get it are 1 and 37.

The length of a rectangle is 3 times the width and the perimeter is 22 Find the dimensions of the rectangle?

The width is 22/8 or 11/4 or 2.75. The length is 66/8 or 33/4 or 8.25.

Length = 3W

3W + 3W + W + W = 8W

8W = 22

W = 22/8

L = 66/8

Then, you can simplify as you choose.

What is the function of cnidocytes?

Cnidocytes are specialized cells found in cnidarians, such as jellyfish, corals, and sea anemones. Their primary function is to capture prey and provide defense; they contain nematocysts, which are stinging structures that can inject toxins into potential threats or prey. When triggered, cnidocytes rapidly discharge their nematocysts, allowing the organism to immobilize or deter predators and facilitate feeding.

Is it possible for a triangle to have side lengths of 20 9 8?

NO!!!

The sum of the two shorter sides ( 8 + 9 = 17) MUST be greater than the longest side 20

17 < 20 So not possible

How many solutions can a linear system of equations have?

A linear system of equations can have three types of solutions: no solutions, exactly one solution, or infinitely many solutions. If the equations represent parallel lines, there are no solutions. If they intersect at a single point, there is exactly one solution. If they coincide (are essentially the same line), there are infinitely many solutions.

What do you use a quadratic equation for?

A quadratic equation is used to model situations where a variable's relationship with another variable produces a parabolic shape, such as projectile motion, optimizing area or profit, and analyzing certain economic trends. It is often applied in physics to determine the trajectory of objects, in finance to calculate maximum profit points, and in various engineering problems. Additionally, quadratic equations can be used to find the roots of functions, which can help identify key points in graphs.

What is the volume of a sphere if the circumference is 59.7cm?

V = (4/3) pi r^(3)

V = ( 4/3) pi ( 59.7cm)^(3)

V = 1.333..... X 3.141592,.... X 212,776.173 cm^(3)

V = 891,274.74925 cm^(3) = 0.89127474... m^(3)

What is the Nth term of -1 2 7 14 23 34?

According to Wittgenstein's Finite Rule Paradox every finite sequence of numbers can be a described in infinitely many ways and so can be continued any of these ways - some simple, some complicated but all equally valid.
The Nth term, according to the simplest rule (a quadratic), is T(n) = n^2 - 2

What is difference between pi and pie?

Difference????

'pie' is the foodstuff that you eat, apple pie, meat pie'.

'pi' is the Classical Greek lower case letter 'p' , and is used for 'proportion' in circles.

What does the term 'LCM' mean in math?

LCM = 'Lowest/least Common Multiple'.

GCF = ' Greatest Common Factor'.

Does the term 'mean' mean least in math?

In every-day terms, 'The Mean' is called the 'Average'.

What is a area is math?

First of all to correct your English grammar. When a noun begins with a vowel , then the indefinite article is 'an', NOT 'a'. Also, the second 'is' is a verb , and should be a conjunction.

So the question should read, ' What is an area in maths?'

To answer you question.

An Area is the region covered by a 2-dimensional drawing/figure/polygon.

What is the slope to 3x-4y-16 equals 0?

3x - 4y -16 = 0

Algebraically rearrange to to make '4y' the subject.

Hence

4y = 3x - 16 ( Note the change of sign, on taking the '4y' across the equals to replace the zero. ).

Divide both sides by ;4;

y = (3/4)x - 16/4

y = ( 3/4)x - 4

Hence the slope is ' 3/4 ' and the y-intersect is '-4'.

NB For all straight line of the form y = mx + c

'm' is the slope , and 'c' is the y-intersect.

All you need to do on being given linear equations of the form

px + ny + c = o

or

px + c = ny

or

px + ny = c

etc. is to algebraically rearrange into the form of y = mx + c , making sure you change the signs correctly, and then dividing both sides by the coefficient of 'y' .

What is the prime factorization of 3320?

Form a 'step ladder ' of division.

2)3320 =

2)1660

2)830

2)415

5)83

83)83 = 1

When reduced to '1' you have all the factors.

So the prime factors of '3320' are 2,5,83.

Is 256 a prime or composite number?

Since 256 is an EVEN number, then it is a Composite number.

It is definitely NOT a prime number.

NB Remember ALL even numbers are composites, because they can all be divided by '2'. . This makes '2' a factor of all EVEN numbers.

Remember ALL even numbers end in 0,2,4,6,8. So any number that ends in one of these numbers is a composite , and NOT a prime number.

Except for '2' itself, all PRIME Numbers are ODD numbers. However, not all odd numbers are prime numbers., Numbers ending in '5' are odd numbers, but they are NOT prime number because they will all divide by '5' . All odd numbers end in 1,3,5,7,9. However, all prime numbers will only end in either 1,3,7, or 9.

Here are the prime number up to '20'.

2,3,5,7,11,13,17,19

What is 3c plus 4d-2e plus 2d plus 3e simplified?

To simplify the expression (3c + 4d - 2e + 2d + 3e), combine like terms. The terms with (d) are (4d + 2d = 6d), and the terms with (e) are (-2e + 3e = e). Thus, the simplified expression is (3c + 6d + e).

What is the function of a cloplasts?

Chloroplasts are organelles found in plant cells and some algae, responsible for photosynthesis. They contain the green pigment chlorophyll, which captures sunlight and converts it into chemical energy by transforming carbon dioxide and water into glucose and oxygen. This process not only provides energy for the plant but also produces oxygen as a byproduct, which is essential for life on Earth. Additionally, chloroplasts play a role in synthesizing fatty acids and amino acids.

What is two algebraic expressions that have the same value are?

Two algebraic expressions that have the same value are called equivalent expressions. For example, (2(x + 3)) and (2x + 6) are equivalent because they simplify to the same value for any value of (x). This equivalence can be verified by substituting values for (x) or by simplifying the expressions.