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I am in Honors Pre-Calculus and am having a hard time understanding my teacher. I feel so stupid. Does anyone have any suggestions on a website that might give me some insight into what I am doing wrong? Thanks!
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solve the system if possible | x+y+z = 15 | | < 7x+y+z = 75 | | | 3x+y-z=29 a. x=10,y=2,z=3 b. x=–10,y=–2,z=–3 c. x=3,y=10,z=–3 d. x=12,y=9,z=–3 e. no solution; inconsistent system
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I am too embarassed to ask this Calculus (really pre-calculus) question in tutoring, because I know I should know. Is the inverse of f(x)=3x-1 actually f(x)=1/3x+1? How do I find it? What if it asks the same equation replaced with f to the -1 power (x)? I
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The prompt says "Graph each function. Determine the interval[s] for which the function is increasing and the interval[s] for which the function is decreasing." The problems that are given in this prompt are: 1. y= x^3+3x^2-9x 2. f(x)=1/(x+1)-4 3.
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The latitude of Durham, North Carolina is 36 degrees North. About how far from Durham is the North Pole? Use 3963 miles for the radius of the Earth. I believe there is a formula of s=r times the feta angle, but you may have to convert the degrees to
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Verify the trigonometric identity: (1+sin x)/ (1-sinx)^2=(1+sin x)/[cos x] Hint: [cos x] means the absolute value of cos x
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Verify the trigonometric identity: (1+sin x)/ (1-sinx)=(1+sin x)/[cos x] Hint: [cos x] means the absolute value of cos x
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You are traveling in a car toward a certain mountain at a speed of 80km/hr. The apparent size of the mountain is .5degrees. Fifteen minutes later the same mountain has an apparent size of 1 degree. About how tall is the mountain? I believe you must convert
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Pre Calculus why is sin(-20)/cos 380 equal to tan (-200)
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What is the mixed number form of 4.1 with a repeating 66?
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Tony visits the local fair and sees one of the rides, the ferris wheel. The ferris wheel has a diameter of 50 feet and is on a platform of 4 feet. If it takes 12 seconds to make one full revolution, what is the equation of the height of a person on the
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One local war memorial shows a statue of the goddess of victory while the other is a wall the list names of dead soldiers which answer best describes the different purposes of this memorials ? A. One celebrate sacrifice, the other honors leadership . B.
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I was placed into algebra honors instead of advanced math.. I am in 7th grade.. I have to maintain an 80% for the entire year or go to virtual school all summer.. My question is: Is there a special technique, formula, or very useful site that might help me
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Fifty percent of students enrolled in calculus class have previously taken pre-calculus. Thirty percent of these students received an A for the calculus class, whereas twenty percent of the other students received an A for calculus. Find the probability
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Three different weights are suspended from three different springs. Each spring has an elasticity coefficient of 18.5. The equation for the vertical displacement is y= 1.5cosine(t times the square root of k/m), where t is time, k is the elasticity
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Three different weights are suspended from three different springs. Each spring has an elasticity coefficient of 18.5. The equation for the vertical displacement is y= 1.5cosine(t times the square root of k/m), where t is time, k is the elasticity
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A team has 10 players named A, B, C, ... . Before each game an o®ensive captain, a defensive captain, and a water-boy are determined by chance. No one may have more than one of these honors per game. The probability the C and D both win honors for the
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It is known that when a car with wheels of radius 14 in. is driven at 35 mph, the wheels turn at an approximate rate of 420 revoulutions for minute. Show how to obtain this rate of turn. If you ride a bicycle a distance of 5 miles in 15 minutes at a
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Im going over my pre calculus 12 exam, and I need help with one question from the chapter Transformations of graphs and stuff. Combining Transformations 2y = f(5x-10)+8 The original points are (4,6) and the new points I got by translating it and stuff are
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I'm trying to finish up my pre-cal homework and I am stuck on 2 problems... ***determine the intervals over which the function is increasing, decreasing, or constant*** 32. f(x)=x^2-4x 33. f(x)=√x^2-1 (that's square root of x^2-1) thank you so much
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I'm trying to finish up my pre-cal homework and I am stuck on 2 problems... ***determine the intervals over which the function is increasing, decreasing, or constant*** 32. f(x)=x^2-4x 33. f(x)=√x^2-1 (that's square root of x^2-1) thank you so much
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Winona needs to average 5.8 points from 14 judges to win the competition. The mean scores from 13 judges were 5.9. What is the lowest score she can get from the fourteenth judge and still win?
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We're reviewing and I forgot how to do this. Given y=x2-4+3 (x2 is x squared) a)write in standard from b)find vertex c)find equation of the axis of symmetry d)find the x-intercepts e)find the y-intercept
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To solve an equation by finding x-intercepts, Cynthia graphed the function y=x^3-5x+|2x-3| Give several possibilities for the original equation. How do I do it and what's the answer? Thanks
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I am filling out an Honors application for English/History and one of the questions asked why do I wish to take this course.. any ideas? Thanks My ideas are: I want want to take this course because I want to take a class that is a bit more advanced than
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Can you show me how to find the rectangular equation: r=2cos(theta) + 3 sin (theta) All I need is an example to work off I was absent today from Pre-Calc and I have homework to do and no explanation with them-Please help with this one Thank you
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Do i really have to be in AP or IB classes in order to get into Yale School of Arts or no don't worry you don't have to take AP or IB but only if you are doing very well in school but you still have to be in honors like regular honors or regents.
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I am refering to the question posted on Tuesday, June 6, 2017 at 8:26pm. "how to graph y= (x^2-3x-10)/(x-2)" This is the reply I got: Pre-Calculus 12 - Damon, Tuesday, June 6, 2017 at 9:21pm (x-5)(x+2)/(x-2) well we know it is 0 at x = 5 and at x = -2 and
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Generate a function that models the situation. Consider the type of function described—it is not linear! A shipping company charges $4 for the first pound and $3 for each additional pound or part thereof. As you try to come up with the equation, consider
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@Alex asked this question when I was on earlier: Let line l_1 be the graph of 5x + 8y = -9. Line l_2 is perpendicular to line l_1 and passes through the point (10,10). If line l_2 is the graph of the equation y=mx +b, then find m+b. I'm wondering like how
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An object moving vertically is at the given heights at the specified times. Find the position equation s = 12 at^2 + v (small o) t + s (small o) for the object. At t = 1 second, s = 161 feet At t = 2 seconds, s = 98 feet At t = 3 seconds, s = 3 feet a.
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can scientists actually measure the mass and relative abundance of isotopes of an element by counting each particle and measuring their masses? [ i think no because it would be too small ] if not, how could a scientist measure the mass and relative
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GENERATE A FUNCTION THAT MODELS THE SITUATION. Consider the type of function described—it is not linear! A shipping company charges $4 for the first pound and $3 for each additional pound or part thereof. As you try to come up with the equation, consider
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GENERATE A FUNCTION THAT MODELS THE SITUATION. Consider the type of function described—it is not linear! A shipping company charges $4 for the first pound and $3 for each additional pound or part thereof. As you try to come up with the equation, consider
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Reiny you helped me with this logarithm yesterday: How did you write it out as log2 ( √A / B^3 ) Laws of logarithms combine, write as a single logarithm Need help on this question please, Im stuck, don't know where to go abouts from here: I did it on
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Next year (sophomore year) I'm taking the following courses: Honors Algebra II/Trig Spanish III Health AP Biology Honors English AP World History Is AP Bio and world history hard? or no it's not just the exam. Please tell me because this is my first year
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A math teacher uses four algebra books, two geometry books, and three pre-calculus books for reference. In how many ways can the teacher arrange the books on the shelf if books coiver the same subject matter are kept together?
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Approximate the solutions (to three decimal places) of the given equation in the interval (- pi/2, pi/2) 6 sin 2x − 8 cos x + 9 sin x = 6 Can you help with this please? I am studying for my Pre Calculus 1 exam and am stuck on this question...! The
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2k^2+5k-9=0
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2^(x)/(1-2^(x))=3
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2k^2+5k-9
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3x^2 + 8 = -4
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3(4^x)-2^(x+2) = -1
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2n^1/3(n^2/3+n^-1/3)
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what is the F-^1 of 6/x+4
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-2< x < 5 - -
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(2^(4+pi))/ 2^(1+pi)
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(m+3)+5
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27^8x-3=(1/81)^8x-4 x=?
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C=2 x^=8y
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((ln(x))^1/2)/(ln(x^1/2))=6
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x^2-3x-7=0
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x^3e^x - 4e^x =0
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x^2-3/4x+1/8=0
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An investments value, V(t) is modelled by the function V(t)=2500(1.15)^2, where t is the number of years after funds are invested A) find the instantaneous rate of change in the value of the investment at t=4, what intervals would you choose? Why? My
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How do I find xy^-2(xy^2 - 4y^4) ??
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simplify 3x+2y/3y
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14cos+7=O
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how to graph y= (x^2-3x-10)/(x-2)
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Given: u <-1, 7> and v <4, -3> Find: (u • v)(u + v)
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What is the domain of (x+2)/(x-2)?
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if y = bX, then its inverse is
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What is the absolute value of: 3 - 8i? A. 9 B. 64 C. √55 D. √73
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let f(x)= -x^2 - 1. evaluate f(x)at x=6, -6
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gfk
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solve 2x + y = 8 4x + 2y = 16
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find (a)2v+u, (b)u-3v), and (c)5u-v u=<-2,-3> v=<-1,-10>
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find (a)2v+u, (b)u-3v, and (c)5u-v u=<0,-4>, v=<-2,-8>
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Formula: a = b = c
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how to solve 3^(x-2) = 5^x
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ln(3x-1) - ln(x+2) = 2ln5
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How do you factor x^3 - 64?
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2x^2+11x-21=0
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lnx + ln(x+3) = 2
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what is the vertices of 7x^2+5y^2=35
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what is the vertices of (x+1)^2/4+(y+2)^2/25=1 ?
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Let B = [-1 3 6 -3]. Find -4B. A. [-4 12 24 -12] B. [-3 1 4 -5] C. [4 -12 -24 12] D. [4 3 6 -3] b ?
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find (a)2v+u, (b)u-3v), and (c)5u-v. 1.u=i-j, v=6i+9j 2.u=2i+3j, v=-i-2j
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Formula: a = b = c
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Determine whether y is a function of x: x^2y-x^2+4y=0 Please help. Thanks.
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x^2+y ^2+ 4x + 6y - 12 = 0 how do i find the domain?
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f(x)={ x+5, if x>0 3, if x<=0 Graph the function can someone please help
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for f(x)= 1/(x^2-3), find: a. f(3) b.f(2+h)
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Is the period of f(x) = 2cos(3x - ð) 2ð/3?
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given: ((x-2)^2/9)+((y-4^2/16)=1 what is the major axis?
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How do I find the domain of K(x) = x(32 - 2x)^2?
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Need help with the following along with all steps. Find y" for y = 3x + 4/x
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y= ((2-3x^(1/x))/(2+3x^(1/x)) Is the horizontal asymptote y= 1 or y= -1?
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Can someone help me with this equation: y = (2*10^(-44))*(e^(0.055x))?
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2x^3 - 13x^2 + 32x - 13 = 0
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How to find domain of: y = -3 + ãx+6
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For f(x)= 1/(x-5) and g(x)= x^2+2, find: a. (f o g)(x) b. (g o f)(6)
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For any two linear functions f(x)=ax+b and g(x)=cx+d, is f o g the same as g o f?
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Name 3 different representations of the following (-6, 3pi/4)
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if 1-1/x=2-2/x, then 3-3/x=? A. -3 B. -1/3 C. 0 D. 1/3 E. 3 idek how to do it?
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are you an online tutor
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simplify sin(2 pi/3+x)
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is f(x)=9x^(5/3) a power function?
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Solve using logarithm: 2^(4x+1)=3^x
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tan(1/2)cos^-1(9/10)