03/22/17
Pythreom Theron What is the answer to this problem answer asap
A rectangular shaped room has a width of 12 feet length of 20 feet and the height of 8 feet what is the approximate distance from one corner on the floor to the opposite corner on the ceiling
03/14/17
Calculate the apparent frequency heard by a person if a car traveling at 110km/h emits a sound with frequency 450 Hz.
Assume that the car is moving:
a) away from the listenEd. Ans.413 Hz
b) toward the listener. Ans.494 Hz
ps. How can I get the answer? Thx!
03/10/17
What are the main postulates of the kinetic molecular theory of gases
What are the main postulates of the kinetic molecular theory of gases
02/25/17
the diagonal length of a rectangle is sqrt(46), and it's area is 9. Find it's perimeter
the diagonal length of a rectangle is sqrt(46), and it's area is 9. Find it's perimeter
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01/14/17
statistics and probability
betting on the color red in the game of roulette has 18/38 chance of winning. what is the expected value and variance for the number of wins in a series of 50 bets on red?
12/19/16
Working together, Tiffany and Rumita can polish the gym floor in six hours.
Working together, Tiffany and Rumita can polish the gym floor in six hours.Working alone,Tiffany can complete the job in eight hours. How long would it take Rumita to polish the floor on her own?
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Conditional Probability: Are my answers correct?
A certain virus infects one in every 200 people. A test used to detect the virus in a person is positive 90% of the time if the person has the virus and 10% of the time if the person does not have...
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11/20/16
How to find the expected number of favorable outcomes in a sample
A jar contains 5 red marbles, 10 white, and 15 red marbles. If you draw 2 without replacement, what is the expected number of white balls in your sample?
11/19/16
Word Problem
Helen went shopping today. She spent 1/2 of her money on a dress, and 2/5 of the remaining money on a T-shirt. She then spent 1/3 of the money that was left for lunch. After that,she had $16...
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11/15/16
Rational Function
given f(x)= t3-2t2-8t/t2-4 find the domain, asymptotes, holes and intercepts.
I know that to find the x intercept you set y=0 and solve for x but I am unsure how to isolate x when the...
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Given volume of a box, its length, and width express the height of the box as a function in x.
given volume of a bo, its lengt, and width express the height of the box as a function in x. Volume is 12x^3 + 20x^2 - 21x -36, length is 2x + 3, and width is 3x - 4
10/23/16
Rolle's Theorem and Piece Wise Functions
The piece wise function f(x)= 0 , x=0 is differentiable on (0,1) and satisfies f(0)=f(1), but its derivative is never
1-x , ...
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10/23/16
Calculus- Find the open interval
Find the open interval(s) on which the function f(x) = cos^2(2x) is increasing in the interval (0,2π). Round numerical values in your answer to three decimal places.
10/23/16
Inverse Functions
Without using a calculator, evaluate sin(θ) given that θ = arcsin (1/3)+ arccos (1/3)
10/23/16
Optimization
Suppose f(0) = 3 and 2 is less than f '(x) which is less than 4 for all x in the interval [-5; 5]. Determine the greatest and least possible values of f(2).
10/23/16
create your a problem that involves one or both of the two points (-3, 4) and (6, 1)
The coordinates of two points are given: (-3, 4) and (6, 1)
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10/23/16
On which intervals is f increasing?
Let f be a function defined for all real numbers.
Also, let f', the derivative of f, be defined as f'(x)=((x-2)^3))/x.
Options are
(-Infinite, 0) and (2, infinite)
(-Infinite, 0)...
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10/22/16
Factor fully then graph the following function.
HELP ME!!!! I need to factor this using synthetic division and factoring and stuff but have no idea how!
24x^8 - 194x^7 + 201x^6 + 1713x^5 - 4203x^4 + 657x^3 + 4458x^2 - 2176x - 480
10/22/16
if a,b,c are positive reals and a+b+c= 50 and 3a+b-c=70.If ex=5a+4b+2c, find the range of values of x
i need a solution
10/15/16
A survey of 100 companies shows that 75 of them have installed wireless local area networks (WLANs) on their premises. If three of these companies are chosen at
A survey of 100 companies shows that 75 of them have installed wirelesslocal area networks (WLANs) on their premises. If three of thesecompanies are chosen at random without replacement, what is...
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10/13/16
Quadratic formulas and discriminants
Look at the equation below.X^2-6x+13=0what is the value of the discriminant of the equation? WHAT does the value of the discriminant TELL YOU about the solutions to this equation? and determine the...
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10/09/16
complicated exercise in kinematics physics .
A car , C, travelling at constant speed u, passes a stationary police car , P , which immediately sets off in pursuit with acceleration a , find in terms of u and a , the greatest distance...
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What is the probability that Chris will get the favorite parking spot on three different days in one week?
Chris arrives at work at the same time all five work days. Chris has a favorite parking spot. Theprobability that Chris will get the favorite parking spot is 70% every day that Chris works.What is...
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What is the probability that given the motorist arrived when the light was red that the motorist will need to wait more than 20 seconds?
In Tinytown there is one traffic signal with two states green and red. The signal is located at theonly intersecting streets in Tinytown. The traffic light is green for 90 seconds and then red...
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