Q and A for the topic: General

If the speed of a bicycle changes until it reaches a speed of 8m/s in 20 seconds with an acceleration of 0.3m/s² Calculate its original speed

Jesús has two twin cousins and between the three of them they are 35 years old. If Jesus' age 5 years ago was twice that of his cousins. How old is each one now?

Assume that the economy is initially at full-employment. With the aid of AD-AS diagram, illustrate and explain how a fall in interest rate would lead to inflation. Indicate the type of inflation.

What is the domain of the rational function f(x) = 1/x²-9

(7³x3)²

(3⁴x 5²)³

A store has clearance items that have been marked down by 45%. They are having a sale, advertising an additional 35% off clearance items. What percent of the original price do you end up paying? Incorrect% Give your answer accurate to at least one decimal place.

A project on Kickstarter for an iPad stylus raised 1,254% of their goal, raising a total of $328,878 from 7,549 supporters. What was their original goal? $ Give your answer to the nearest dollar.

Evaluate the expression 5 9 F − 32 ) when F = 41

Find the equation of the parabola in its ordinary forms, whose vertex is at the point (3, 2) and its focus at F(5, 2)

An educator estimates that the dropout rate for seniors at high schools in Istanbul is 15%. Last year, 38 seniors from a random sample of 200 Istanbul seniors withdrew. At α=0.05, is there enough evidence to reject the educator’s claim?

Consider the set 𝐴 given by extension: 𝐴={−9,−8,−7,−6,−5,−4,−3,−2,−1,0,1,2,3,4,5,6,7,8,9} The set 𝐴 by understanding it is given by:

An instructor whishes to see whether the variation in scores of the 23 students in her class is less than the variance of the population. The variance of the class is 198. Is there enough evidence to support the claim that the variation of the students is less than the population variance (�� 2 = 225) at α = 0.05?. Assume that the scores are normally distributed

I’m 1998 the Nabisco Company announced a “1000 chip challenge” claiming that the average 18-ounce bag of their Chips ahoy cookies contained 1,000 chocolate chips. I want to determine whether the bags of cookies have more or less than 1,000 chocolate chips on average. Should I perform a one or two tailed test?

The mean of the chocolate chip column is 938.19 and the mean of the bag weight is 18.0406. Round these to one decimal place. The standard deviation is 94.282. Round this to one decimal place also. With all of these numbers, what is the effect size of the study? And is it positive or negative? Thanks

Eugenia has a plot in which she has decided that 2/3 of the land will be used for planting. Of This part, 1/4 will be dedicated to planting lettuce. What total part of the plot's land will be intended for growing lettuce?

(a-3)(a+3)- 〖[(2a-5)〗^2- (a+6)(a-9)] + (a+5)^3

In 6 years, Jonathan's age will be twice Alfredo's age. What is Jonathan's current age if three years ago he was three times Alfredo's age?

Calculate the time in which a capital of Q.12,000, placed at an interest of 5.5% capitalized semiannually it increases its value to Q13,000

Write in extensive form the set A = {2x / x<20, x ε N}.