Number of results: 84
Let f(x)=x+2 Ix-3I and g(x)=3x-1 Find all solutions to the equation f(g(x))=-4x So this is what I did... (3x-1)+2 I(3x-1)-3I=-4x (3x-1)+2 I3x-4I=-4x This is where I got stuck. What do I do with the absolute value? and this part?(3x-1)+2=3x+1 ??
December 8, 2009 by SC
What is the rule for the function shown in the table? x: -1 | 0 | 1 | 2 y: -2 | 1 | 4 | 7 A. y= 1/3x + 1 B. y=3x + 1 C. y= 1/3x D. y= 1/3x + 1 Will someone please help and explain how I can work this out. I have trouble with these.
April 29, 2015 by Anonymous
We pour water into a conical container of a radius of 10 cm with a height of 36cm at a rate of 70 cm^3/s. At what velocity does the water level increase when it reaches 12 cm? dh/dt=?
April 19, 2011 by Bobski
find the slope,if any, of the line perpendicular to the line through the points (2,-7) and (3,4). i need to show my work!. i got 11 as my answer but i think its wrong.:(
August 20, 2014 by Anonymous
a bag contains 4 white, 3 blues, and 5 red marbles. find the probability of choosing a red marble, if the marbles are replaced. A) 1/12*** B) 5/36 c) 5/6 D) 5/12
February 9, 2016 by 7th Grade Questions
kathy will babysit !@#$%^& ctas. she charges $75 for the week for supplies and $8 for each hour,h,she works. write an expression for the total amount kathy charges. -->> THNX!!!
March 6, 2011 by alexis
in the diagram below, <G and <H are complementary. What is the measure of G? a)20 b)30 c)40 d)50 inside G they have a problem saying (2x+10)degrees. i relly need help into solving these kind of problems trying to find degrees of each angle but i cant remember the ...
February 27, 2012 by Kristie
Describes a real world situation using words as label and using math symbols to relate the words.. Its a vocab work. And the school couldnt get me a text book today because my names not in the system. PLEASE help me:((
August 15, 2011 by Kristeena
Juan makes $6.50 an hour plus an extra $15.25 per week. Last week he earned $47.75. Look at this equation that represents Juan's earnings ;ast week. 6.50h+15.25=$47.75 How many hours did Juan work?
December 30, 2011 by alexis
thirty-sit people are registered for an evening class. if twice as many men as women are registered for the class, how many men are registered? 1)24 2)18 3)12 4)6 5)not enought information
May 10, 2010 by Anonymous
hiii i needd help on this!! 30.47cm^2=___________mm^2 and 187000 cm^2+ 3.45m^2=_____m^2+_____m^2=________m^2 30.47 cm² = 3047mm² and 187000 cm² + 3.45m² = 18.7m² + 3.45m² = 22.15 m²
February 3, 2007 by Anonymous
this is for proving identies and its fustrating i can't solve this one question! lol x=feta (btw the first part is supposed to be divided by the bottom) 1 + 2sinxcosx + sinxcosx sinx + cosx (1 + 2sinxcosx / sinx + cosx) + sinxcosx
December 14, 2008 by diana
Suppose 10,000 is invested at 6 percent.how much additional money must be invested at 8 percent to produce a yield on the entire amount invested of 7.2 percent. ( Please show each and every steps of this math with the rough works) THANK YOU SO MUCH.
October 21, 2013 by HELP NEED HELPs!!!!
Joanie wants to mail a package that requires $1.30 in postage. If she has only 5-cent and 7-cent stamps, what is the smallest number of stamps she could use that would be totally exactly $1.30? the smallest number of stamps is ____.
June 2, 2015 by Jessica
mathh help pleaseee (: ! <345
One hiking club charges $20 to become a member and $5 to participate on each hike. Anotherclub charges no membership fee, but charges $7 to participate on each hike. How many hikes must you go on to make the first club more economical ?(:
January 7, 2009 by Mary
A tree is "x"meters high. The angle of elevation of its top from a point P on the ground is 23degrees. Form another point Q, 10meters from P and in line with P and the foot of the tree, the angle of elevation is 32degrees. Find "x". (Please don't give me the answer only.. I ...
March 5, 2008 by Nazharia
rodney opens a saving account and deposits 3000 dollars. the saving account earn 5% yearly simple terest. If rodney does not deposit any additional money into the account, how much compound interest did she earn over all 3 years
November 28, 2011 by Anonymous
1. Sara got 10 out of 13 questions right on a test. What will she probably make on her test? A. 76% B.60% C.70% D.85% 2. What will Sara make if she got a 5 extra points? Idk how to answer number 2.. I think it's.. A for number 2
January 29, 2015 by Anonymous
Louis Braille devised a system of six raised or not-raised dots to signify a letter of the alphabet. a) How many different letters or characters may be coded in Braille? b) If you wanted to code 94 distinct characters, such as those found on a computer keyboard, how mant dots ...
April 7, 2010 by CL
A family drove 1080 miles to their vacation lodge. Because of increased traffic density, their average speed on the return trip was decreased by 6 miles per hour and the trip took 2.5 hours longer. Determine their average speed on the way to the lodge. Can someone help define ...
July 30, 2009 by johnny
DVD case are 9/16 inch wide. If Juan has 60 DVDs, how many of them will fit on one shelf? How wide would a DVD case have to be in order for 60 of them to fit on one shelf? Give the answer in feet. help plzz! asap
October 22, 2014 by white rabbit
The Pont du Gard near Nimes, France is a roman aqueduct. An observer in a hot air balloon some distance away from the aqueduct determines that the angle of depression to each end is 54 degrees and 71 degrees respectively the horizontal distance between the balloon and aqueduct...
July 20, 2010 by Nada
mathh help plsss plsss
Decide which part of the quadratic formula tells you whether the quadratic equation can be solved by factoring. −b b^2 − 4ac 2a Use the part of the quadratic formula that you chose above and find its value, given the following quadratic equation: 4x^2 + 6x + 2 = 0
May 25, 2016 by Oscar
Trains A and B are traveling in the same direction on parallel tracks. Train A is traveling at 40mph and Train B at 50mph. Train A passes a station at 9:20 am. If train B passes the same station at 9:32 am, at what time will train B catch up to train A?
November 21, 2009 by TracyAnn
A certain state taxes the first $400,000 in property value at a rate of 1%; all value over $400,000 is taxed at 1.75%. Find a piecewise-defined function T that specifies the total tax on a property valued at x dollars. (Simplify your answer completely.) 0.01x if 0<x<400,...
January 21, 2014 by A
The scale drawing of a toy train has a width of 2 inches and length of 5 inches. What is the actual length of the toy train if the actual width is 8 inches? I got the answer of 40 inches.
March 7, 2016 by Kateri
Check Mathh Answers!!
1.Find the mean: 12, 8, 7, 10, 8, 8, 10 A)63 B)12.6 C)9** D)7 2.The sixth-grade classes have 28, 20, 30, and 25 students. What is the mean number of students in a class? A)25.75** B)26.25 C)25 D)27 3.The mean of four numbers is 30. If three of the numbers are 12, 50, and 48, ...
March 24, 2016 by JacqueesWifee
7. the back-to-back stem-and-leaf plot below shows the ages of patients seen by two doctors in a family clinic one day. what is the difference between the age of the oldest patient seen by doctor 1 and the age of the oldest patient seen by doctor 2. AGE OF DOCTORS PATIENTS ...
March 17, 2015 by Anonymous
Romeo and Juliet are moving in the xy-plane. Juliet starts at the point (0,20( and moves in a straight line at a constant speed. She will pass through the origin in exactly 5 seconds. Romeo starts at the same time from the point (30,0) and moves in a straight line at a ...
December 10, 2009 by SC
The temperature in a certain cave is a sinusoidal function of time. When you first enter the cave, you set up a thermometer to record the temperature. After 19.5 hours, the temperature in the cave is at its maximum: 35 degrees celsius. The temperature then dropped, reaching ...
December 8, 2009 by SC
In a triangle ABC, angle A is 2 times angles C and angle B is 20 degrees less than angle C find the number of degrees in these angles In a triangle ABC, angle A is 2 times angles C and angle B is 20 degrees less than angle C find the number of degrees in these angles A = 2C B...
August 24, 2006 by fiaie
mathh (unit rate)
Find the unit rate. $121.50 for working 18 hours wages = hourly rate x time 121.50 = hourly rate x 18 hours. Solve for hourly rate. how do i solve for hourly wages = hourly rate x time 121.50 = hourly rate x 18 hours. You want to get hourly rate by itself. So divide both sides...
August 22, 2006 by Rebecca