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# Prove that the expression $x-2-x^{2}$ is negative for all real values of $x$...

## Question

###### Prove that the expression $x-2-x^{2}$ is negative for all real values of $x$

Prove that the expression $x-2-x^{2}$ is negative for all real values of $x$ #### Similar Solved Questions

##### Tts) Teluc - Wlen the pond urgnic nalural 4st level, uxyg dumpee cutenle inlu pOnd Suppaee Honutt , [XIN Rven that thc tirne oxi aliuu mKE Colllent naluit #ill prOClS days alter Tutoto in pce UGAnkc exygen cnient wistc huis 1+7I dumetd Finto prcent f() = I( + I of its nornal after organic Wlrt ' level. Find the Iu brn nertake dumped inlu colltent of OxygCT Hlnt: thie pou] Slur Chat (er tha first 10 days+l0t 100 - + 20t IO0 } =[- 1+710 (+ 10)7
Tts) Teluc - Wlen the pond urgnic nalural 4st level, uxyg dumpee cutenle inlu pOnd Suppaee Honutt , [XIN Rven that thc tirne oxi aliuu mKE Colllent naluit #ill prOClS days alter Tutoto in pce UGAnkc exygen cnient wistc huis 1+7I dumetd Finto prcent f() = I( + I of its nornal after organic Wlrt '...
##### Particle moves 70 m west; then moves 120 m east; and finally moves east again = distance of 90 m. If ea is chosen &S the positive direction, what is the particle s resultant displacement? 40 m b. 40 m 280 m d. [40 m and then retumns t0 its starting point taking an additional 30 = If east particle moves 20 m east in 10 chosen 2s the positive direction; what is the average speed of the particle? 0.50 mls b. -0.50 ms 2.66 mls d L.0 mls A ball is pushed with an initial velocity of 4.0 mls The ba
particle moves 70 m west; then moves 120 m east; and finally moves east again = distance of 90 m. If ea is chosen &S the positive direction, what is the particle s resultant displacement? 40 m b. 40 m 280 m d. [40 m and then retumns t0 its starting point taking an additional 30 = If east particl...
##### Wmaedealopt6 Of 15 (5 complete)Find the critical value t for the confidence level c = 0.98 and sample size n = 18.Click the icon to view the t-distribution table_(Round to the nearest thousandth as needed:)nplleEnter your answer In the answer box fe
Wmaedealo pt 6 Of 15 (5 complete) Find the critical value t for the confidence level c = 0.98 and sample size n = 18. Click the icon to view the t-distribution table_ (Round to the nearest thousandth as needed:) nplle Enter your answer In the answer box fe...
##### Suppose that the jpdf of the continuous random variables W and Z is given by f (w,2) = r(e? 3wz) for 0 < W < 1. 2 < ? where reis constant. Find Consider the jpdf f (z.y) = (Sry 22 +1) for 0 < * <3 1 <y < 5. Calculate P(re < Y) What is fx(z)? Write Cov(X,Y) in terms of the integrals required t0 calculate it. While You have to set Hp the integrals completely, Vou do not have t0 evaluate aY of them:
Suppose that the jpdf of the continuous random variables W and Z is given by f (w,2) = r(e? 3wz) for 0 < W < 1. 2 < ? where reis constant. Find Consider the jpdf f (z.y) = (Sry 22 +1) for 0 < * <3 1 <y < 5. Calculate P(re < Y) What is fx(z)? Write Cov(X,Y) in terms of the int...
##### Find f if f" (#) 1247 + 61 H,andf(o) E 65,f(1)| Ei Hih
Find f if f" (#) 1247 + 61 H,and f(o) E 65,f(1)| Ei Hih...
##### 21 _ 5Express partial fractions (41 - 1)I +2) 23 - 5 Hence evaluate IP (42 - T(z + 2) (b) Use integration by parts to evaluate "TP =4 | (c) Using suitable substitution, integrate "(41+4(2? + 2x + 3) dr with respect to 
21 _ 5  Express partial fractions (41 - 1)I +2) 23 - 5 Hence evaluate IP (42 - T(z + 2) (b) Use integration by parts to evaluate "TP =4 | (c) Using suitable substitution, integrate "(41+4(2? + 2x + 3) dr with respect to   ...
##### Implicit differentiation to find y'.cos (xy )=x"_yy
implicit differentiation to find y'. cos (xy )=x"_y y...
##### Solve the system using either Gaussian elimination with back-substitution Gauss-Jordan eliminatlon . (If theresolution, enter NO SOLUTION: there are an infinite number of colutlons,2x3 22Need Help? IRR
Solve the system using either Gaussian elimination with back-substitution Gauss-Jordan eliminatlon . (If there solution, enter NO SOLUTION: there are an infinite number of colutlons, 2x3 22 Need Help? IRR...
##### 20y1:y(0) =14 (0) =3
20y 1:y(0) =14 (0) =3...
##### Make use of the matrix expression (13.18) for $x$ in a representation defined by the harmonic-oscillator wave functions to obtain a similar matrix for $x^{2}$, using purely matrix methods. Compare with the answer to Prob. 3, Chap. IV.
Make use of the matrix expression (13.18) for $x$ in a representation defined by the harmonic-oscillator wave functions to obtain a similar matrix for $x^{2}$, using purely matrix methods. Compare with the answer to Prob. 3, Chap. IV....
##### Consicer the initial value problem for the function y; 3yy(1) = 2,t >1.y(t) Transform the differential equation above for y into separable equation for v(t) You should get an equation U = f(t,v):Note: In your answer type for v(t); and for t(b) Find an implicit expression of all solutions y of the differential equation above in the form @(t,v) = C where collects all constant terms So; do not include any â‚¬ in your answer )%(t,v)Note: In your answer type for u(t) , and for -Find the explicit e
Consicer the initial value problem for the function y; 3y y(1) = 2, t >1. y(t) Transform the differential equation above for y into separable equation for v(t) You should get an equation U = f(t,v): Note: In your answer type for v(t); and for t (b) Find an implicit expression of all solutions y o...
##### (a) Assume the people are investigated one after another: Let X be the number of people investigated until the organization finds the first person with the disease: The average and standard deviation of X are about(b) With X as in (a), the chance that the organization has to investigate 2,000,000 people before finding their first person with the disease is(c) In group of 10 people chosen at random by the organization, the probability that at least three people have the disease is equal to(d) In
(a) Assume the people are investigated one after another: Let X be the number of people investigated until the organization finds the first person with the disease: The average and standard deviation of X are about (b) With X as in (a), the chance that the organization has to investigate 2,000,000 p...
##### Either calculate the improper integral or show that the improper integral diverges. y dy: y2 4[Note: The integrand is y/Vy2 4.]
Either calculate the improper integral or show that the improper integral diverges. y dy: y2 4 [Note: The integrand is y/Vy2 4.]...
##### Find the determinant of the matrix:-6
Find the determinant of the matrix: -6...
##### Find tha coordinales ol Ihe poinl Pon (he crcumlerence of (he circle (Hinl Add x ad y-axes, assuming Ihal Iho angle IS In standard posilion )15O?Tha coordinales ol P are (Type an ordered palr ; Simplily YouI answer wcluding any radicals
Find tha coordinales ol Ihe poinl Pon (he crcumlerence of (he circle (Hinl Add x ad y-axes, assuming Ihal Iho angle IS In standard posilion ) 15O? Tha coordinales ol P are (Type an ordered palr ; Simplily YouI answer wcluding any radicals...