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What is a pan balance used to measure

A device for weighing. When the pans contain exactly the same mass the beam is in balance. You can place an object in one pan an...

What months have 31 days

The Gregorian calendar consists of the following 12 months:January - 31 days.February - 28 days in a common year and 29...

Two events are dependent if when one occurs:

Two events are dependent if the first event affects the outcome or occurrence of the second event in a way the probability is cha...

Which value of r indicates a stronger correlation than 0.40?

0The strength of a correlation is measured by its absolute value. So a negative or inverse correlation can bestronger than...

What is the relative maximum and minimum of the function

A relative maximum point is a point where the function changes direction from increasing to decreasing (making that point a "peak" in th...

How to find conjugate

You find the complex conjugate simply by changing the sign of the imaginary part of the complex number. To find the complex co...

How many balloons to lift a person

If you weigh 50 kilograms (about 110 pounds), then you weigh 50,000 grams. Divide your 50,000 grams by the 14 grams per balloon and you find th...

How to graph a circle from an equation

The equation of a circle appears as (x – h)2 + (y – v)2 = r2. This is called the center-radius form (or standard form) because it gi...

What is the center of a confidence interval

At the center of a confidence interval is the sample statistic, such as a sample mean or sample proportion. This is known as the point estimate...

How small is pico

The base unit is then multiplied or divided by powers of ten to represent larger or smaller measurements.The Metric System....

How to measure newton

It is defined as that force necessary to provide a mass of one kilogram with an acceleration of one metre per second per second. One newton is ...

How to determine most acidic proton in a molecule

ANSWER: Protons (a) are the most acidic. Method 2. Proton (a) are bonded to SP3 carbons so pka ≈ 50. Proton (b) is bonde...

What number has 6 zeros

How Many Zeros in a Million? How Many Zeros in a Billion? Reference ChartNameNumber of ZerosWritten OutO...

How many prime number

The first 25 prime numbers (all the prime numbers less than 100) are: 2, 3, 5, 7, 11, 13, 17, 19, 23, 29, 31, 37, 41, 43, 47, 53, 59, 61...

How to make percentage to decimal

Divide a percent by 100 and remove the percent sign to convert from a percent to a decimal. The shortcut way to convert fr...

Why do plants need mitochondria

Plant cells require mitochondria to produce energy for the cell, usually through photosynthesis during the day. When the sun sets and th...

How to calculate change in momentum

The result of the force acting for the given amount of time is that the object's mass either speeds up or slows down (or changes direction). Th...

How to find sin 30 degrees

To find the value of sin 30 degree, we will use the following formula, Sinϴ = Perpendicular Hypotenuse. Thus, the value of Sin 30 de...

What is 7x

7x, or seven times in multiplication....

How to find out average

How to Calculate Average. The average of a set of numbers is simply the sum of the numbers divided by the total number of values in the ...

How many sides are on a cube

In geometry, a cube is a three-dimensional solid object bounded by six square faces, facets or sides, with three meeting at each vertex. The cu...

How many factors does 100 have

Therefore, the number 100 has 9 factors....

Which years were leap years

Therefore, the year 2000 will be a leap year, but the years 1700, 1800, and 1900 were not. The complete list of leap ye...

How to find the solution set of inequalities

Solution Set of an InequalityExample: Solve 2x + 3 ≤ 7, where x is a natural number. 2x + 3 ≤ 7. Subtractin...

How long is one billion seconds

Specifically, one billion seconds is 31.69 years or a little more than 11,574 days....

What is the prime factorization of a number

"Prime Factorization" is finding which prime numbers multiply together to make the original number....

What is the abbreviation for liters

The litre (international spelling) or liter (American spelling) (SI symbols L or l, commonly, but incorrectly, abbreviated as ltr...

How many different 4 digit numerals are there

There are 10,000 possible combinations that the digits 0-9 can be arranged into to form a four-digit code....

How to determine if a sequence is convergent or divergent

Remember that a sequence is like a list of numbers, while a series is a sum of that list. Notice that a sequence converges if the limit ...

How to turn mixed numbers into decimals

When you convert a mixed fraction to a decimal, there are two strategies:Change the mixed fraction to an im...

What time is 12 am

The American Heritage Dictionary of the English Language states "By convention, 12 AM denotes midnight and 12 PM denotes noon. Because o...

What day does the week start on

While, for example, the United States, Canada, Brazil, Japan and other countries consider Sunday as the first day of the week, and while the we...

What is square shape

What is a square? A square is closed, two-dimensional shape with 4 equal sides. A square is a quadrilateral. We can find t...

How are polynomials used in real life

Polynomials are used in engineering, computer and math based jobs, in management, business and even in farming. In all careers requiring...

How many liters are in a quart of oil

US Quarts (Liquid) to Liters tableUS Quarts (Liquid)Liters1 qt0.95 L

Which four states share a common corner

Four Corners Monument, marking the only spot in the United States where four states Arizona, Utah, Colorado, and

What color code is white

The hex code for white is #FFFFFF. Looking for a different hue?...

How to find percent difference between 2 numbers

Percentage Change | Increase and DecreaseFirst: work out the difference (increase) between the two numbers ...

What percent of 15 is 75

Percentage Calculator: 15 is what percent of 75? = 20....

How old is debbie

Debbwie Bio/WikiBio/WikiBirth DateApril 3, 1997Age23 years oldProfess...

How far apart are the foci of an ellipse

The answer is 30 feet....

How far away is lightning based on thunder

If you count the number of seconds between the flash of lightning and the sound of thunder, and then divide by 5, you'll get the dist...

What shape has 4 sides and 4 corners

A quadrilateral has 4 sides, 4 angles and 4 vertices. A quadrilateral can be regular or irregular....

How to measure 1 tbsp

Use the tip of your thumb as a guide for measuring a tablespoon. As a general rule, the tip of your finger should measure about <...

What is the cross sectional area of a cylinder

The cross-sectional area of a cylinder is equal to the area of a circle if cut parallel to the circular base. The cross-sectional area is the a...

How many nodes are there in the 1s, 2p, and 3d orbitals? how many nodes are in a 4f orbital?

How many nodes are there in the 1s 2p and 3d orbitals how many nodes are in a 4f orbital. All four of these orbitals have 0 nodes. The 1s, 2p, ...

What is 18:00 in military time

24-hour clock24-hour clock12-hour clock15:003:00 p.m.16:004:00 p.m.17:0...

What does similar mean in geometry

In Euclidean geometry, two objects are similar if they have the same shape, or one has the same shape as the mirror image of the other. ...

How to subtract fractions with like denominators

There are 3 simple steps to subtract fractionsMake sure the bottom numbers (the denominators) are the same.

5 8 is equal to what fraction

Decimal and Fraction ConversionFractionEquivalent Fractions5/810/1640/647/...

How to find domain of derivative

Answers to Questions (FAQ) Calculating the derivation domain of a function, noted Df′ , is to calculate the set of definition of its <...

What does concave up mean

Concavity relates to the rate of change of a function's derivative. A function f is concave up (or upwards) where the derivative f′ is...

What does mutually exclusive mean in math

Mutually Exclusive: can't happen at the same time. Examples: Turning left and turning right are Mutually Exclusive (you can't do ...

What is 4 pm military time

4:00 p.m. - 1600 hrs. 5:00 p.m. - 1700 hrs. 6:00 p.m. - 1800 hrs....

What is a polygon with 6 sides

A six-sided shape is a hexagon, a seven-sided shape a heptagon, while an octagon has eight sides…...

How to solve mean median and mode

How to find the mean, median and mode: MEANStep 2: Add the numbers up to get a total. Example: 2 +19 + 44 +...

How to make a repeating decimal into a fraction

Convert a Repeating Decimal to a FractionCreate an equation such that x equals the decimal number....

How many degrees in an isosceles triangle

The sum of three angles of an isosceles triangle is always 180°, which means we can find out the third angle of a triangle if the two angles o...

How do you calculate the square footage of a circle

The formula for determining the total square feet in a circular area is: A = Pi x R2 (Area = Pi x R-squared). This formula...

What measurement do we use to determine a month

A month is a unit of time, used with calendars, which is approximately as long as a natural period related to the motion of the Moon;

What is 20 of $40.00

Percent Off Table For 40.001 percent off 40.00 is 39.60The difference is 0.4020 percent off ...

Which best explains if quadrilateral wxyz can be a parallelogram?

Which best explains if quadrilateral WXYZ can be a parallelogram? WXYZ is a parallelogram because diagonal XZ is bisected....

What is the symbol for variance in statistics

For variance, apply a squared symbol (s² or σ²). μ and σ can take subscripts to show what you are taking the mean or standard deviation of...

What is the customary system of measurement

The customary system of measurement is defined as a set of weights and measures used for measuring length, weight, capacity, and tempera...

How do you use a venn diagram

Venn diagrams enable students to organise information visually so they are able to see the relationships between two or three sets of items. Th...

What are remote interior angles

The remote interior angles are the two angles on the inside of the triangle that are not touching the exterior angle. Think of th...

What is the first step to solve the equation

Solving Equations with a Variable on Both Sides. After simplifying, the first step in solving an equation with a variable on both...

What is the formula of mass in physics

One can consider the mass of an object as a measure of how much physical “stuff” makes up that object. mass=density×volume (m=ρV). Densit...

In mathematics what is a function

Function, in mathematics, an expression, rule, or law that defines a relationship between one variable (the independent variable) and an...

What are the solution(s) of ?

In chemistry, a solution is a special type of homogeneous mixture composed of two or more substances. In such a mixture, a solute is a substanc...

How to find length of a right triangle

Key PointsThe Pythagorean Theorem, a2+b2=c2, a 2 + b 2 = c 2 , is used to find the length of any side of a right trian...

What is a three dimensional shape called

A cube, rectangular prism, sphere, cone and cylinder are the basic 3-dimensional shapes we see around us....

What is a factor of 26

Factors of 26: 1, 2, 13, 26....

What time is 16:50

Military Time 1650 is: 4:50 PM using 12-hour clock notation, 16:50 using 24-hour clock notation. How to tell and write military time: one-six-f...

1 out of 3 is what percent

Common Fractions with Decimal and Percent EquivalentsFractionDecimalPercent1/3...

What is the quotient of 18 1000

Answer: The value or the quotient of 18/1000 is 0.018....

What percent is 6 out of 20

Percentage Calculator: 6 is what percent of 20? = 30....

How to tell if lines are perpendicular

Two lines are perpendicular if and only if the product of their slopes is . In other words, the slope of a line that is perpen...

How long is million seconds

1 million seconds is about 11 days. 1 billion seconds is about 31.5 years. And 1,000 (1 trillion) seconds is 31,709.8 years. ;p....

What is 20 30 in simplest form

Thus, 2/3 is the simplified fraction for 20/30 by using the GCD or HCF method. Thus, 2/3 is the simplified fraction for

Which shape has 5 vertices

PentahedronNameVerticesFacesSquare pyramid (Pyramid family)55Tr...

In what century are we

We live in the 21st Century, that is, the 2000s. Similarly when we say "20th Century," we are referring to the 1900s. All ...

How does a isosceles triangle look like

An isosceles triangle has two equal sides (or three, technically) and two equal angles (or three, technically). The equal sides are called legs...

What does twice mean in math

Two times as many. Example: 8 is twice 4. Or happening two times. Example: "He asked her twice, but she didn't hear either time"...

How to find the rate of depreciation

The depreciation rate can also be calculated if the annual depreciation amount is known. The depreciation rate is the annual d...

What is 5 of 10000

Percentage Calculator: What is 5 percent of 10000.? = 500....

How to find sn

Sn = a + (a + d)+(a + 2d) + + (ℓ − 2d)+(ℓ − d) + ℓ. 2 n(a + ℓ) . We have found the sum of an arithmetic progression in terms of it...

How to find angles

The formula for finding the total measure of all interior angles in a polygon is: (n – 2) x 180. In this case, n is the number ...

Which table shows a function that is decreasing only over the interval (–1, ∞)?

The table in which values is only decreasing after -1 will be the table which shows a function is decreasing onl...

How many feet are in an acre perimeter

An acre is 43560 square feet o it it's a square of side length s feet then s2 = 43560. Hence s = √43560 = 208.71 feet. T...

Why is the abbreviation for ounces oz

Etymology. Ounce derives from Latin uncia, a unit that was one-twelfth (​1⁄12) of the Roman pound (libra). The abbreviation oz

How many miles per hour is 100 km

Kilometer/hour to Mile/hour Conversion TableKilometer/hour [km/h]Mile/hour [mi/h]...

How do words not only represent our thoughts but also represent our values?

How do words not only represent our thoughts but also represent our values? People tend to talk about the things that are important to t...

What does ml

Millilitre or milliliter (mL, ml, or mℓ), a unit of capacity. Millilambert (mL), a non-SI unit of luminance....

What do the angles of a pentagon add up to

Here's a pentagon, a 5-sided polygon. We multiply 3 times 180 degrees to find the sum of all the interior angles of a pentago...

In one day how many times do the minute hand and the second hand of a clock make a straight line

How many times in a day, the hands of a clock are straight? Explanation: In 12 hours, the hands coincide or are in opposite direction 22 times....

How to rationalize denominators

So, in order to rationalize the denominator, we need to get rid of all radicals that are in the denominator.Step 1...

When do you learn trigonometry

By 10th standard one should have mastered medium level trigonometry because in 11th and 12th a student will not only be exposed t...

What is the prime factorization of 20

Since 2 is prime, the prime factorization of 20 is 2 * 2 * 5 ....

When are two triangles congruent

Two triangles are congruent if they meet one of the following criteria. : All three pairs of corresponding sides are equal. : Two...