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Find the distance between 2-3i and 9+21i
General
4 months ago
Suppose ABCD is a rhombus with AB = 12 inches. The midpoints of its sides are joined to form a quadrilateral. b What is the length of a diagonal of this quadrilateral?
General
4 months ago
Consider the two way table.
General
4 months ago
A 190-pound man and a 130-pound woman went to Burger King for lunch. The man had a BK Big Fish sandwich (750 Cal), medium french fries (400 Cal), and a large Coke (225 Cal). The woman had a basic hamburger (370 Cal), medium french fries (400 Cal), and a diet Coke (0 Cal). After lunch, they start shoveling snow and burn calories at a rate of 420 Cal/h for the woman and 610 Cal/h for the man. Determine how long each one of them needs to shovel snow to burn off the lunch calories. The metabolizable energy contents of different foods are as given in the problem statement. Shoveling snow burns calories at a rate of 420 Cal/h for the woman and 610 Cal/h for the man.
General
4 months ago
The National Football League (NFL) polls fans to develop a rating for each football game. Each game is rated on a scale from 0 (forgettable) to 100 (memorable). The fan ratings for a random sample of 12 games follow. 57 61 87 74 72 73 19 56 81 79 83 75 a. Develop a point estimate of mean fan rating for the population of NFL games (to 2 decimals). b. Develop a point estimate of the standard deviation for the population of NFL games (to 4 decimals).
General
4 months ago
Select the correct product.(x 2 + 4x + 8)(2x - 1)
General
4 months ago
find the product of (x2 + 3x + 1)(x2 + x + 2)
General
4 months ago
2/5 (3r+4) =10 solve for r
General
4 months ago
Match each function formula with the corresponding transformation of the parent function y = (x - 1)2 1.y = - (x - 1)2Translated right by 1 unit2.y = (x - 1)2 + 1Reflected over the y-axis3.y = (x + 1)2Translated left by 4 units4.y = (x - 2)2Translated up by 1 unit5.y = (x - 1)2 - 3 Translated down by 3 units6.y = (x + 3)2Reflected over the x-axis
General
4 months ago
The mean incubation time of fertilized eggs is 21 days. Suppose the incubation times are approximately normally distributed with a standard deviation of 1 day.(a) Determine the 20th percentile for incubation times.(b) Determine the incubation times that make up the middle 39% of fertilized eggs.
General
4 months ago
Riding a bike a person takes 20 minutes to go to work. The trip back home takes 30 minutes. If the rate back is 8 mph slower than the trip to work, find the rates (speeds) each way and the distance to work.
General
5 months ago
Bethany wrote the equation x+(x+2)+(x+4)=91 when she was told that the sum of three consecutive odd integers had a sum of 91. Which statement about her equation is true? A) Bethany is correct because consecutive odd integers will each have a difference of two. B) Bethany is correct because there are three xs in the equation and three is an odd number so it represents the sum of odd numbers. C) Bethany is incorrect because 2 and 4 are even numbers, she should use 1 and 3 in their place. D) Bethany is incorrect because consecutive integers always increase by 1 each time, not by 2.
General
5 months ago
4x-3y=15x+4y=9What are the resulting equations?
General
5 months ago
Find the general solution for the following homogeneous equations. PLEASE SHOW SOLUTIONS1) (xy+y2)dx−x2dy=0 (hint: let u=y/x, so y=ux, dy=xdu+udx))2) 2x2ydx=(3x3+y3)dy. (hint: let v=x/y, so x=vy, dx=vdy+ydv)
General
5 months ago
If possible, find a matrix B such that AB = A2 + 2A.
General
5 months ago
I was asked to solve an invertible matrix, found the inverse but having trouble putting it into a product of elementary matrices. Can anyone help?A^-1 = [-9/2 7/2][ 4 -3]
General
5 months ago
Determine whether the system of linear equations has one and only one solution, infinitely many solutions, or no solution. 2x-y=5 and 4x+ky=2
General
5 months ago
3. Find the inverse Laplace transform of F(s) = (-4s-9) / (s^2 + 25-8) f(t) =
General
5 months ago
Find the vertices and foci of the hyperbola with equation x^2/4 - y^2/60 = 1
General
5 months ago
The are of the shape is __ square centimeter
General
5 months ago
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