2,208 Answered Questions for the topic Pre Calculus

Pre Calculus Limits Functions Function

08/17/15

Limits help!!!
  Determine whether the function is continuous or discontinous. Justify your reasoning. If discontinuous, identify points of discontinuity.                   2-X^2 if X <= 1 ƒ(x)=... more
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08/17/15

Can you represent ever series in sigma notation
can you?   can the series 1+4+9+61+52 be represented in sigma notation 
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Pre Calculus Math Series Summations

08/15/15

Express the series below in summation notation for the specific number of terms
A.) 0+1+2+3+4+5+6+7+8+9   b.) 4+8+12+16+20   c.) 6+11+16+21+26+31+36   d.) 0+3+8+15+24+35+48+63+80   e.) sum of a& e
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Pre Calculus

08/15/15

Cant solve question below
The population of Abnerville was 12,500 people in 1950. In 2000, the population was 250,000. Find the average rate of increase in the population over the 50 year period.
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Pre Calculus

08/12/15

Finding distance using Angles and Sine
Two weather tracking stations are on the equator 159 miles apart. A weather balloon is located on a bearing of North 38 degrees East from the station and on a bearing of North 14 degrees from the... more
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Pre Calculus

08/07/15

word problem HELPPPP
the area of a rectagula garden is 125 ft sq. the garden is to be enclosed on three sides by a brick wall costing 20$ a foot and on one side by a fence costing 9 $ a foot. express the cost to... more
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Pre Calculus

06/22/15

use a graphing utility to graph f(x)=0.2x^4+0.2x^3-0.9x^2+5 on the interval (-3,2) and approximate any local maxima and local minima
determine where f is increasing and where it is decreasing   using a graphing utilty, graph the function for -3<x<2 and -5<y<10. 
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06/08/15

Sonic boom trig question
The US Air Force was running maneuvers with the F22 Raptor, flying low enough so that you could see the shock cone created as the jet flies overhead at supersonic speeds. You wanted to take a video... more
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Pre Calculus

06/03/15

pre cal simplify
     3                     5                                    n+3                6                 -                                                            +                  x2+1x-2      ... more
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Pre Calculus

06/03/15

pre cal simplify
         1                   1                     +                      x+4                 x-4                                                    x                   1                  +  ... more
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Pre Calculus

06/03/15

pre cal simplify
2m2-7m-15               9-4m2                    divide                * (3-2m) 2m2-10m                    6
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Pre Calculus

06/03/15

pre cal simplify
 x2-4                x2+x-6             divide                x2-4x              x2+x-20
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Pre Calculus

06/03/15

simplify precal 20
a) a2-a-12      a2-4a+3                  *                        a2-9           a2-4a
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Pre Calculus Math School

05/28/15

Find the sum of the geometric series 4+2+1+...+1/16.
I really need help with this problem
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Pre Calculus

05/24/15

graphing absolute values
graph the following    a) y=|3x-4|   b) y=|-2/3x-2|   c) y=|-2(x-1)^2+5|   d) y=|2(x-3)(x+1)|
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Pre Calculus Absolute Value Correct

05/24/15

check my absolute value answers asap please
         | = absolute value   1. question =   |3x-5| = 7                                 My answer =          x= 2/3     2. question =  -2|4x-1|+7 = -3                          My answer =    ... more
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Pre Calculus

05/21/15

absolute values
simplify a)3|-4-2|-5|1-6|               b)||-3(-2+6)|-2|-2-1|                       Graph the following    a) y=|3x-4|                        b) y=|-2/3x-2|     c) y=|-2(x-1)^2 +5         ... more
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Pre Calculus

05/14/15

Find the center, vertices, and foci of the ellipse with equation 4x2 + 9y2 = 36.
Find the center, vertices, and foci of the ellipse with equation 4x2 + 9y2 = 36. Center: (0, 0); Vertices: (-3, 0), (3, 0); Foci: Ordered pair negative square root 5 comma 0 and ordered pair square... more
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Pre Calculus High School: Math

05/14/15

Find the fifth roots of 243(cos 260° + i sin 260°).
Find the fifth roots of 243(cos 260° + i sin 260°).
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05/14/15

Find the standard form of the equation of the parabola with a focus at (0, 6) and a directrix at y = -6
Find the standard form of the equation of the parabola with a focus at (0, 6) and a directrix at y = -6. y equals 1 divided by 24 x squared y2 = 6x y2 = 24x y equals 1 divided by 6 x squared    
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Pre Calculus Math Help

05/10/15

need help on 2 questions to that Im stuck on I have answers but am unsure if they are correct or not. Answer asap
(5+√3) (2-√6)       And...   7√7  - 6√12  - (4√28  + 4√3)
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Pre Calculus Math Help

05/09/15

help solve these questions for me , I have an answer but not sure if it's right
1.   (5+√3)(2-√6)   2.     7√7-6√12-(4√28+4√3)       
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Pre Calculus Math Help Math Answers

05/09/15

Simplify the following please
1. [√48÷√1080] [√900÷√24]   2.√384÷√288   3. √2÷5√2
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Pre Calculus Simplify Math Help

05/08/15

Simplify the following please
simplify  .  No decimals   1. √32 (√50 +√54 -√18)     2.(√6)(√48)     3. (√2÷54)〈√45〉     4. √384 ÷√288          
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Pre Calculus

05/04/15

Pre calculus 20 question
A laser printer prints 24 more sheets per minute than an ink jet printer. If it takes the two printers a total of 14 minutes to print 490 pages, what is the printing rate of the ink jet printer?  
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