Who developed a sieve method for identifying primes? Eratosthenes Who invented Sieve of Eratosthenes? Sieve of Eratosthenes is an almost mechanical procedure for separating out composite numbers and leaving the primes. It was invented by the Greek scientist and mathematician Eratosthenes who lived approximately 2,300 years ago. Who invented prime number? Who was the Greek […]

Does the frequency of a pendulum depends on its length? Frequency f of a simple pendulum depends on its length ℓ and acceleration g due to gravity according to the following equation f=2π1lg . Does length affect speed of pendulum? Explanation: Both the length of the pendulum’s string and the angle of displacement affect the […]

How do you read a map grid? When taking a grid reference, always read left to right along the bottom or top of the map first and then bottom to top along the side of the map. This is particularly important in an emergency situation. When mapping on a grid What goes first? The x-coordinate […]

Why is it called the butternut region? The most outspoken resisters lived in the “Butternut” region—the southern parts of Ohio, Indiana, and Illinois. Called Butternuts because their homespun clothing was dyed a light brown from nut extracts, residents of the region did not own enslaved people but shared many sentiments with Southerners. What was the […]

What can the RF value be used for? R f values can be used to identify unknown chemicals if they can be compared to a range of reference substances. The Rf value for a particular substance is always the same if the same solvent and stationary phase are used. What information is obtained from RF […]

What number is 40% of 200? 80 How much is 40 percent off 100? Percent Off Table For 100.00 1 percent off 100.00 is 99.00 The difference is 1.00 40 percent off 100.00 is 60.00 The difference is 40.00 41 percent off 100.00 is 59.00 The difference is 41.00 42 percent off 100.00 is 58.00 […]

Why do we need fractions and decimals? Fractions are important because they tell you what portion of a whole you need. They are used in telling time,each minute is a fraction of an hour. We use decimals in every day life while dealing with money,weight,length etc. They are used in situations where more precision is […]

How do you find the linear cost function? To summarize: A linear cost function has the form C(x)=mx+b, where mx is called the variable cost, b is called the fixed cost, and m is called the marginal cost. What are linear cost functions? A linear cost function is a mathematical method used by businesses to […]

What are equivalent expressions? Two expressions are said to be equivalent if they have the same value irrespective of the value of the variable(s) in them. What is an example of a equivalent expressions? Examples of Equivalent Expressions 3(x + 2) and 3x + 6 are equivalent expressions because the value of both the expressions […]

Which word means to divide into equal parts? What is another word for divide into two equal parts? halve bisect intercross overlap transect cut through pass across cleave bifurcate split What does the word bisection mean? transitive verb. : to divide into two usually equal parts. What means dividing something into two equal parts? half […]