Q and A for the topic: General

In a factory the most important operation is painting. At the painting site there are always two workers working at the same time, although due to the physical setup, they cannot help each other. Arrivals at the painting area occur according to a Poisson process with an average arrival rate of 100 per day. Each collaborator takes an average of 27 minutes to paint an article. Lately, the excess of ongoing work is a cause for concern, so management is considering expanding the painting area and hiring a third worker. (It is assumed that the 3rd worker, after a training period, will also take an average of 27 minutes per piece). After the advancement of technology, the other option would be to buy a robot to carry out the workers' task, since it is known that the average time it will take for each piece is 10 minutes.

Find the slope of the tangents to the curve y=−x2+5x−6

Which three of the following discrete variables are binary Which side of a coin lands uppermost when thrown Whether you have a pet Rank in the armed forces Whether you wear glasses Grade of musical proficiency The last two digits of the telephone number of a football team

A NaOH titrant solution with 2 grams of NaOH in 100mL where the Volume is 40mL, was used to determine the concentration of HCl acid (analyte solution) where the volume = 20mL. Calculate the concentration of HCl acid analyte solution in mol/L. Present your solution in mol/L to 1 significant figure. Enter a numeric value only without the mol/L unit.

An object of mass 500 g and density 0.8 g/cm³ is immersed in a liquid of density 1.2 g/cm³. What is the volume of the object that remains outside the liquid?

Prove that in every right triangle whose acute angles measure 75 and 15 degrees, the height corresponding to the hypotenuse is equal to a quarter of it.

find the inverse of f(x)=2x^(2)+7

Purchases of merchandise on credit (without signing commercial documents from the supplier) for the amount of 350,000 plus VAT

For a monopolist, the unit cost of manufacturing a product is $3 and the demand equation is p= Va. What price will give the greatest profits?

Trey and his friend equally share a 12 ounce jar of applesauce how much applesauce in ounces does each person receive?

a tortoise is walking in the desert. It walks for 9.6 meters at a speed of 6 meters per minute. For how many minutes does it walk?

You collect a random sample of 50 children and compute , the average height in inches. The sample standard deviation (s) equals 10. Suppose the true mean height μ equals 45 inches. For which of the following values of will a 95% confidence interval contain the true mean μ? I. = 47.5 inches II. = 50 inches III. = 42 inches

You conduct a poll of FIU students in order to determine the percentage of students (p) who agree with the statement “Hot-dogs are one of my favorite foods”. In your poll, you find that 80 out of 100 students agree. You conduct a two-sided hypothesis test where H0: p = 0.7, where p is the proportion of students whose favorite food is hot dogs. Which of the following statements are true: I. You reject the null hypothesis when α = 0.05 II. You reject the null hypothesis when α = 0.01 III. The test statistic (Z) equals Z = +1.5

You collect data on N = 25 student weights and find that the average student weight in your sample is 135 pounds. The sample standard deviation (s) is 5 pounds. You conduct a two-sided hypothesis test where H0: μ = 134 pounds. Which of the following statements are true: I. You reject the null hypothesis when α = 0.05 II. You reject the null hypothesis when α = 0.01 III. The test statistic (T) equals T = +1

How much must be invested today, March 1, 2024 to make equal quarterly withdrawals due for $2,500 each during 2022, if deposits earn interest at 8% CT?

For the function f(x), the real number a where f(a)=a is called the fixed point of the function f(x). Show that when f(x) is continuous and differentiable for all real numbers x, if f’(x)≠1, then f(x) has at most one fixed point.

Example 2: The head of the faculty library states that the average number of students who visit it per day is 350. To confirm or not this assumption, the number of attendees for 30 days is recorded and it is found that the average was 372.6. If the standard deviation of 52.414 and a significance level of 0.05 is considered, say whether you would support what the head of the library says.

three times a number increased by 44 is the same as the opposite of the number. Find The number

Divide, if possible: 2.96/0

sean weighs 10 lb more than twice brads weight. if brad gains 10 lb, together they’ll weigh 230 lb. how much does each weigh now?