logo semaths.comSEMATHS.ORG

Last questions

Jun 19, 2021

What is the dimension of a square

a square has two dimensions (2D), and a cube has three dimensions (3D). In Physics it can also mean any physical ...
Jun 19, 2021

How many valence electrons does each element have

Following this rule: Elements in group 1 have one valence electron; elements in group 2 have two valenc...
Jun 19, 2021

How many different arrangements can be made with the letters in the word power?

How many different arrangements can be made with the letters in the word POWER? A. 120....
Jun 19, 2021

How many quarters are in 10 dollars

Number of Coins in a Standard RollDenominationNumber of CoinsFace ValueNic...
Jun 19, 2021

What does xer mean

Xer(Noun) A member of Generation X. Many Xers sport piercings in their noses or navels....
Jun 19, 2021

According to the fundamental theorem of algebra, which polynomial function has exactly 6 roots?

The polynomial + x – 5 has maximum 5 roots as the degree of the polynomial is 5. Hence, op...
Jun 19, 2021

What does on or about mean

The phrase on or about is used to avoid being bound to a more precise statement than is required by law. The phrase is ...
Jun 19, 2021

What are hex codes

Hex codes are a hexadecimal format for identifying colors. This is a system used in HTML, CSS and SVG. Eac...
Jun 19, 2021

How to solve an algebra problem

How to Solve an Algebra ProblemStep 1: Write Down the Problem. Step 2: PEMDAS. <...
Jun 19, 2021

What is the complement of a set

Complement of a Set: The complement of a set, denoted A', is the set of all elements in the given u...
Jun 19, 2021

What is another name for the metric system

The International System of Units (Système international d'unités or SI) is the current international st...
Jun 19, 2021

How does cyanide affect the electron transport chain

Cyanide poisons the mitochondrial electron transport chain within cells and renders the body unable to der...
Jun 19, 2021

How is a circle different from an ellipse

A circle is a closed curved shape that is flat. Instead of having all points the same distance from the center p...
Jun 19, 2021

What is the angle of elevation of the sun

The elevation is 0° at sunrise and 90° when the sun is directly overhead (which occurs for example at th...
Jun 19, 2021

90 is 50 of what number

Solved: 90 is 50 Percent of What Number = 180....
Jun 19, 2021

What is 5pm in military time

5:00 p.m. - 1700 hrs. 6:00 p.m. - 1800 hrs....
Jun 19, 2021

How to determine if a graph is one to one

If the graph of a function f is known, it is easy to determine if the function is 1 -to- 1 . Use th...
Jun 19, 2021

What is the 8th month of the year

MonthsMonth NumberMonthDays in Month6June307J...
Jun 19, 2021

How to tell if a function is continuous without graphing

Your pre-calculus teacher will tell you that three things have to be true for a function to be conti...
Jun 19, 2021

What is the percent difference between the two results

Find the absolute difference between two numbers: |20 - 30| = |-10| = 10. Find the average of those two...
Jun 19, 2021

What time is 18:10

06:10 PM using 12-hour clock notation, 18:10 using 24-hour clock notation. See, what time is in the other militar...
Jun 19, 2021

What is the lcm of 9 and 15

Answer: LCM of 9 and 15 is 45....
Jun 19, 2021

What is any number divided by 0

There is NO solution, so any non-zero number divided by 0 is undefined....
Jun 19, 2021

How to measure hand length

To figure out the length of your hand, measure the distance from the fold in your wrist below the p...
Jun 19, 2021

How many orbitals

There are four types of orbitals that you should be familiar with s, p, d and f (sharp, principle, diffuse and fu...
Jun 19, 2021

How many miles is the earth round

Using those measurements, the equatorial circumference of Earth is about 24,901 miles (40,075 km). However...
Jun 19, 2021

How to find the horizontal asymtote

The horizontal asymptote of a rational function can be determined by looking at the degrees of the numerator a...
Jun 19, 2021

What is the definition of rate in math

RateMathematicsOverviewExamplesTypesCalculatorsVideosPractice probl...
Jun 19, 2021

What is the gcf of 24 and 90

What is the Greatest Common Factor of 24 and 90? Greatest common factor (GCF) of 24 and 90 is 6....
Jun 19, 2021

How are ions formed from atoms

Ions are formed by the addition of electrons to, or the removal of electrons from, neutral atoms or...
Jun 19, 2021

What are the factors of 24 and 36

The common factors of 24 and 36 are 1, 2, 3, 4, 6 and 12. The greatest common factor of 24 and 36 is 12. Example ...
Jun 19, 2021

How to type arctan in calculator

Arctan on calculator In order to calculate arctan(y) on a calculator: Press shift+tan button...
Jun 19, 2021

What is the area and perimeter of a rectangle

A rectangle is a parallelogram with four right angles. The perimeter P of a rectangle is given by ...
Jun 19, 2021

How to find the inverse of sine

Inverse SineThe inverse sine function (also called arcsine) is the inverse of sine funct...
Jun 19, 2021

How to find t value for confidence interval

For example, if you want a t*-value for a 90% confidence interval when you have 9 degrees of freedo...
Jun 18, 2021

What hours are evening

Evening: 6-9 p.m. Late at night: Midnight-6 a.m....
Jun 18, 2021

How to find a vertex of a function

To do so, we use the following steps:Get the equation in the form y = ax2 + bx + c.Calculate<...
Jun 18, 2021

What is the place value of 4

4 is in tens place and its place value is 40, 8 is in ones place and its place value is 8....
Jun 18, 2021

What does convergence mean in math

Convergence, in mathematics, property (exhibited by certain infinite series and functions) of approaching ...
Jun 18, 2021

How to find 95th percentile

The total number of entries K = 30. Since we are calculating the 95th percentile, multiply the number of e...
Jun 18, 2021

What are the characteristics of a trapezoid

A trapezoid, also known as a trapezium, is a flat closed shape having 4 straight sides, with one pair of parallel...
Jun 18, 2021

What does it mean when a dot product is zero

An important use of the dot product is to test whether or not two vectors are orthogonal. Conversely, the...
Jun 18, 2021

What is the greatest common factor of 32 and 48

Answer: GCF of 32 and 48 is 16....
Jun 18, 2021

What is a 100% increase

An increase of 100% in a quantity means that the final amount is 200% of the initial amount (100% of initial +...
Jun 18, 2021

What does a bar graph measure

a Bar Graph. Bar graphs are used to compare things between different groups or to track changes over time....
Jun 18, 2021

What is a dependent system

dependent system: A system of linear equations in which the two equations represent the. same line; there ...
Jun 18, 2021

How to use graphs

You would use:Bar graphs to show numbers that are independent of each other. Pie ...
Jun 18, 2021

How to learn trigonometry fast

Learn Trigonometry in 5 stepsStep 1: Review your all basics. Step 2: Start with the righ...
Jun 18, 2021

Why is a chemical equilibrium described as dynamic?

Chemical equilibrium refers to the balance between products and reactants after a given reaction has reached a st...
Jun 18, 2021

How are speed and velocity similar

Speed and velocity both represent a way to measure the change in position of an object relative to time. In fact,...
Jun 18, 2021

What is a consecutive interior angle

When two lines are cut by a transversal, the pair of angles on one side of the transversal and inside the two lin...
Jun 18, 2021

How many congruent sides does a regular hexagon have

A regular polygon has congruent angles and congruent sides. Any polygon can be a regular polygon. Look at the regular po...
Jun 18, 2021

When to use bar graph vs histogram

Histograms are used to show distributions of variables while bar charts are used to compare variables. Histograms...
Jun 18, 2021

What are all the multiples of 36

The multiples of 36 are 36, 72, 108, 144, 180, 216, 252, 288, 324, 360, 396, 432, 468, 504, The multipl...
Jun 18, 2021

What does the triangle symbol mean in physics

the triangle is a mathematical symbol which denotes change in a quantity . it is called delta. so delta v=...
Jun 18, 2021

What does time measure

In math, time can be defined as the ongoing and continuous sequence of events that occur in succession, from the ...
Jun 18, 2021

What does solution of an inequality mean

A "solution'' of an inequality is a number which when substituted for the variable makes the inequality...
Jun 18, 2021

Which regular polygons tessellate the plane

Equilateral triangles, squares and regular hexagons are the only regular polygons that will tessellate<...
Jun 18, 2021

What are the factors of 52

Factors of 52: 1, 2, 4, 13, 26, 52. Factors of 53: 1, 53....
Jun 18, 2021

What does descending mean in maths

Descending Order. Descending Order. Arranging numbers (or other items) in descending order means...
Jun 18, 2021

Explain why there must be at least two lines on any given plane.

there must be at least two lines on any plane because a plane is defined by 3 non-collinear points....
Jun 18, 2021

What is terminating in math

A terminating decimal is usually defined as a decimal number that contains a finite number of digits after the de...
Jun 18, 2021

What is 7/10

What is 7/10? 710, or 7/10, is considered a “stoner” holiday for consuming cannabis oil products, dabs...
Jun 18, 2021

What do you do when dividing exponents

Explanation: These exponents have the same base, x, so they can be divided. To divide them, you<...
Jun 18, 2021

What is an unusual event in statistics

An unusual Event: an event is considered to be unusual if the probability of occurring is le...
Jun 18, 2021

How does surface tension depend on intermolecular forces

1 Answer. Stronger intermolecular forces will produce greater surface tension . The intermolecular forc...
Jun 18, 2021

What is the vertical line at the end of a measure called

The end of each bar (measure) is marked usually with a single vertical line drawn from the top l...
Jun 18, 2021

How to find length of major axis

The standard equation of an ellipse with a vertical major axis is the following: + = 1. The center is at (h, k). ...
Jun 18, 2021

How to do synthetic division step by step

Synthetic division is another way to divide a polynomial by the binomial x - c , where c is a constant....
Jun 18, 2021

What are microwave waves used for

Microwaves are widely used in modern technology, for example in point-to-point communication links, wirele...
Jun 18, 2021

What is the derivative of csc

(Math | Calculus | Derivatives | Table Of)sin x = cos x Proofcsc x = -cs...
Jun 18, 2021

Celsius vs fahrenheit which is better

Fahrenheit gives you almost double - 1.8x - the precision* of Celsius without having to delve into decimal...
Jun 18, 2021

Why is it important to be able to calculate an empirical formula from experimental data?

Why is it important to be able to calculate an empirical formula from experimental data? This allows one to de...
Jun 18, 2021

Why does sound travel faster in warm air?

Temperature is another condition that affects the speed of sound. Heat, like sound, is a form of kinetic e...
Jun 18, 2021

How to write 5 percent as a decimal

5% means that you have 5 out of 100 ( 5100 ). Because there is a one in front you divide 5 b...
Jun 18, 2021

10 of what number is 30

10 percent (calculated percentage %) of what number equals 30? Answer: 300....
Jun 18, 2021

How many cups of popcorn in a pound

Pound to US cup Conversion Chart - Popcornpounds to US cups of Popcorn...
Jun 18, 2021

24 is what percent of 40

Percentage Calculator: 24 is what percent of 40? = 60....
Jun 18, 2021

What is an example of a line segment

Line segmentOverviewExamplesCalculatorsPractice problemsTypesWorksh...
Jun 18, 2021

In slope-intercept form, what is the equation for the line in part b?

Write an equation of a line in slope-intercept form with the given slope and y-int...
Jun 18, 2021

What is a number line diagram

A blank number line was originally proposed as a visual model or diagram for solving addition and subtract...
Jun 18, 2021

How do you subtract matrices

Subtraction between two matrixes is possible if they have the same order or the dimensions. So, they must have th...
Jun 18, 2021

Name the set(s) of numbers to which 1.18 belongs.

It is a rational number because it can be written in the form p/q where p and q are integers and q does no...
Jun 18, 2021

How to make questionnaires

How to Make a QuestionnaireKnow your question types. Keep it brief, when possible...
Jun 18, 2021

What force balances the weight of an object at equilibrium

Gravity always acts downward on every object on earth. Gravity multiplied by the object's mass produces a ...
Jun 18, 2021

How many mm is a credit card

ID-1. The ID-1 format specifies a size of 85.60 by 53.98 millimetres (3 3⁄8 in × 2 1⁄8 in...
Jun 18, 2021

How to calculate the number of atoms in a sample

To calculate the number of atoms in a sample, divide its weight in grams by the amu atomic mass from the periodic...
Jun 18, 2021

How is kinetic energy measured

Kinetic energy is energy possessed by an object in motion. If the mass has units of kilograms and the vel...
Jun 18, 2021

What is a straight line in math

A line that does not curve. In geometry a line is always straight (no curves)....
Jun 18, 2021

What does the greater symbol look like

The greater than symbol is >. So, 9>7 is read as '9 is greater than 7'. The less than symbol...
Jun 18, 2021

What is 75/100 in simplest form

75/100 expressed in the simplest fraction is 3/4....
Jun 18, 2021

What percent is 44 out of 50

Percentage Calculator: 44 is what percent of 50? = 88....
Jun 18, 2021

Why is a monatomic compound nonsense

A substance can be said to be compound only when it contains two or more different type of elements joined by che...
Jun 18, 2021

What seasons

The four seasons are spring, summer, fall (autumn), and winter.Meteorological Seasons...
Jun 18, 2021

How to solve linear expressions

To solve linear equations we will make heavy use of the following facts. If a=b then a+c=b+c a + c = b + c for an...
Jun 18, 2021

How many permutations of 5 letters

Example: DCODE 5 letters have 5! =120....
Jun 18, 2021

What is not a factor of 36

36 = 1 x 36, 2 x 18, 3 x 12, 4 x 9, or 6 x 6. Factors of 36: 1, 2
Jun 18, 2021

What is a in binary

Here is the letter A as a binary number to represent the ASCII decimal number for A, which is 65: The letter A as...
Jun 18, 2021

Why 7 days in a week

The Babylonians, who lived in modern-day Iraq, were astute observers and interpreters of the heavens, and it is largely ...
Jun 18, 2021

How many seconds in a second

How many seconds in 1 second? The answer is 1. We assume you are converting between second and s...
Jun 18, 2021

What seasons are there

A season is a period of the year that is distinguished by special climate conditions. The four seasons - spring, ...
Jun 18, 2021

How tall is the sun

The mean radius of the sun is 432,450 miles (696,000 kilometers), which makes its diameter about 864,938 miles (1...