What is the definition of the word frequency?



Due in 20 mins- pls help n no mfkn link T-T

Are Tropical rain forests are typically located close to the equator? Evaluate 21/a+4 when a=3 [tex] \sf { \fcolorbox{green}{g}{What is \: the diffrence between alkali and base in simple defination}} [/tex] Two cells each of EMF 1.5 v and an internal resistance of 2 ohms are connected in parallel. calculate the current flowing when the cells are connected to 1 ohm resistor ILL BRAINLIEST YOU PLEASE HELP ME Find the value of c in the triangle shown below.98Choose 1 answer: Select the improper fraction that is equal to the mixed number below4 3/5A. 43/5B. 23/5C.12/5 PLEASE HELP ASAP I'M BEING TIMED!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!The Soviet Union suffered the largest casualties in World War II.True/False Solve using the quadratic formula. Show all work. Write each solution in simplest form. No decimals. what is the percent yield if the combustion of gasoline results in 680 grams of steam produced when a theoretical yield is 985 grams of steam? Need help What are the two types of requirements needed for analysis? A. Operational and systemB. Software and systemC. Technical and systemD. Operational and technical Economists Kenneth Chay and Michael Greenstone found that in the two years following the passage of the Clean Air Act of 1970, the sharp reduction in air pollution also led to a decline in infant deaths. Although this and other studies provide compelling evidence of the link between pollution and infant health, it is not clear that reductions from the much lower levels of ambient pollution today would have the same effect. Which of the following reasons could explain this? A) The cost of pollution abatement today is much higher than it was in the 1970s. Thus, it would be far more costly to achieve the same level of benefit today as the benefit achieved in 1970. B) When levels of pollution are high, the marginal benefit of reducing pollution also is high. It follows therefore that the benefit of reducing air pollution in 1970 would be much higher than the benefit from a proportional reduction in air pollution today when the level of pollution is much lower. C) Today, the level of pollution is much higher. Therefore, it will take a much larger reduction in air pollution to reap benefits similar to those in 1970. D) When levels of pollution are high, the marginal benefit of reducing pollution is low. Therefore, it was necessary to significantly reduce air pollution in 1970 before benefits could be realized. Today, when the level of pollution is much lower, such drastic measures are unnecessary. Tara will draw a scale model of the garden she wants to plant. Her scale will be 1 cm=2.5 ft. What will be the actual dimensions of Tara's garden? 1- List the main differences in African American education before and after the Civil War. M6|L32 Zearnland Savings Joanie is working a lemonade stand to earn money. On the first day, she earned $0.25. Each day, she earns $0.25 more than she did the day before. How much money will Joanie earn in 7 days? Drug addiction is considered a chronic disease withno cure.O TrueO False 4. That was my favorite movie, but then I saw End Game.A remove the commaB. change but to andC. change the comma to a semicolonD. no change 4 is greater than x, and x is greater than -7. Write the following as an inequality. If you are paid $42,000 per year, what is your type of payment?a.Commissionb.Salaryc.Waged.Pension Can someone copy and draw this? Expect can the kidney color be orange?