3-What is the simple interest produced by R$420.00 over 2 years at a rate of 7% per year? Value: 1.5 points Question solved general 7 months ago 2653
Calculate the area under the curve of f(x) = 2x2+ 1, within the interval [0, 2], using the method of trapezoids. The number of trapezoids must be 4. Question solved general 7 months ago 1104
Calculate the area under the curve of f(x) = x^2e^x, within the interval [-4, 0], using the integration by parts method. Question solved general 7 months ago 1454
Three dice are rolled. Find the probability of obtaining a sum greater than 5 Question solved general 7 months ago 578
Twelve players take 60 days to train for games. 6 of them, however, were removed, leaving only 6 to train for the games. How long will the training take to complete? Question solved general 7 months ago 318
let A = (1,1,1) B = (0,1,1) C = (2,1,1) and D = xA + yB +zC determine: the components of the vector D if D = (0,0 ,0) find x, y, z find x, y, z such that D = (1,2,3) Question solved general 7 months ago 1170
If A = (2,2-1) B = (3,1,2) find a non-zero vector C such that A*C = B*C = 0 Question solved general 7 months ago 351
Let R be a ring. An element a ∈ R has a right inverse if there is some x ∈ R such that ax = 1. Suppose that a ∈ R has a right inverse but does not have a left inverse. Show that a has infinitely many distinct right inverses. (Hint: let x be such that ax = 1 but xa 6 = 1. And consider the elements x + (xa − 1)aj for j = 1, 2, . . ..) Question solved general 7 months ago 2129
Sarah has 17 apples, mark has 6 times as many apples as Sarah. How many more apples does mark have them Sarah? (Around to nearest whole number) Question solved general 7 months ago 2593
Resolve the problem. Justify your answer, using the formulas of both arithmetic progression and geometric progression. Jaime and Rafael are dedicated to painting houses. Jaime quotes $24 for the first hour and then adds $2.85 for each hour of work. In this way, the second hour is charged at $26.85 and so on. On the other hand, Rafael quotes $1.50 for the first hour and then doubles the cost per hour. After a 7-hour work day. What type of progression does each painter's hourly rate represent? Who would earn more, adding a total of 7 hours of work? Question solved general 7 months ago 2416
The number of punctures in the tires of a certain commercial vehicle has a Poisson distribution with a mean of 0.3 per 50,000 kilometers. a) Find the expected number of punctures in 250,000 km. vehicle tours. Question solved general 7 months ago 1264
A warehouse is 62 yards long, 28 yards wide, and 7 yards high. What is the area of the warehouse floor? If the warehouse is filled to half its height with the tightly packed boxes, what is the volume of the boxes? Question solved general 7 months ago 417