algebra writing question and need the explanation and answer to help me learn.

Requirements:

1 | Page Revision 1)choose 1-| 3 | | 3 | …………………. [6/0/-6/9] 2-the number of solutions of the equation x=7 in R R is…………..[infinite/0/1/2] 3-if …………………..[1-2-3-4] 4-R+ R- =…………………………………[ R / / R-{0} / R+ R-] 5-If √ ,then x=………………..[2-6-9-10] 6-If ( ) ………………………………..[3-7-21-22] 7-If where + ,then xyz =………………………..[ 60- 60- 360- 360] 8-The arithmetic mean of the set of the values : 2,3,4,7and 9 is…………………. [4 -5 -6 -8] 9-If ,then k =…………………..[14- 7- 5 -0] 10-If (5,x-7) = (y+1,-5) , then x+y =……………………..[6 / -6 / 2 / -2] 11-If , then 2x =…………………………….[ / 1 / 2 / 50] 12-The solutoin set of the two equations 😡 = 1 , y = 3 in R R is……………. [ {(1,3)} / {(3,1)} / R / ] 13-If x is the additive identity , y is the multiplicative identity ,then( ) ( ) =………………………………[ 2 – 3 – 7 – 9 ] 14- …………………[ 2 – 3 – 4 – 6 ] 15-the solution set of the inequality : x in R is………………….. ( [2, / / ]- ,2[ / ]- ) 16-the intersection point of the two straight lines : x = 1, y – 3= 0 lies in ………… ……….quadrant [ the first – the second – the third – the fourth ] 17- If five times a number equals 45 , then one ninth this number equals ……………………[ 1 – 5 – 9 – 81]

2 | Page 18- If the expression : is a perfect square , then k =………………. [ 19- If √ =……………………………..[ 2 – 20- the equation : 3x + 4y + xy = 5 is of the ………………… degree [ first – second – third – fourth ] 21-If xy = 3 , x = 12 , then y =………………………[ 4 / 2 / -2 / ] 22-If | x | = 7 , then x = ………………………..[ -7 / 7 / / 14 ] 23-the number of solutions of the equation : x = 3 in R R is………………….. [ 0 – 1 – 2 – an infinite number ] 24-If n(x) = 5 , then n(2) =…………………………[ 3 / -3 / 5 / 2 ] 25- the solution set of the two equations : x = 2 , y = 5 in R×R is…………………. [ {(2,5)} / (5, 2) / R / ] 26- √ =…………………………. [ 4 – 8 – 2 – 6 ] 27-If a + b = 5 , a – b = 3 , then = ……………….. [ 8 – 9 – 15 – 25 ] 28- the S.S of the two equations : x = 3 , xy = 15 in R×R is …………………….. [ {5} / {3,5} / {5,3}/{(3,5)} ] 29-√ =………………….. [ 81 – 49 – 9 – 3 ] 30-If (5, x + 1) = (y , 3) , then x + y =……………………….[ 3 – 5 – 7 – 9 ] 31- the two straight lines : x + 2 =0 and x = y are intersecting at the point ………. [ (2 , 2) / ( 2, 0) / ( -2 , -2 ) / ( 0 , 0) ] 32-If , then x = …………………….. [ 0 – 3 – 6 – 9 ] 33- the equation of the symmetry axis of the curve of the function f where f(x)= ……………………. [ x = – 4 / x = 0 / y = 0 / y = – 4 ] 34-If , then x = ……………………………..[ 1 – 5 – 0 – 3 ] 35- Half of the number is ……………………………[ ] 36-If √ , then ……………………….[ 37-The degree of the equation : 3x + 4y + xy = 5 is …………………………… [ zero – first – second – third ]

3 | Page 38-The middle proportional between 9 and 16 is ……………………………. [ 39- If , then …………………………[ 27 – 40- If 3x = 45 , then =………………………….. [ 3 – 5 – 15 – 45 ] 41- the algebraic expression : is of the ………………………term [ first – second – third – fourth ] 42 – If ……………………………..[ -1 / / 1 / 5 ] 43- If ab = 3 , , then b =………………………[ 4 / 2 / -2 / -4 ] 44-If the algebraic fraction , then a = …………………….. [ -3 / -2 / 2 / 3 ] 45-If x – y = 3 , x + y = 5 , then ……………..……[ 15 – 16 – 17 -18 ] 46-If (x , 6) = (5 , y) , then x + y =……………………..[ 6 – 5 – 11 – 30 ] 47- √ = …………….+ 4 [ 5 – 3 – 1 – zero ] 48- Half of the number ……. [ ] 49-If a , b , then b =…………………….. [ 1 – 2 – 3 – 4 ] 50-If then k =………………………. [ 0 / 3 / -3 / 8 ] 51- The solution set of the equation : in R is……………………… [ {3} / {-3} / {3, -3 } / ] 52- If , then m = ………………… [ 5 – 6 – 10 – 25 ] 53-Half the number is ………………..[ 54- If the sum of ages of ahmed and mohammed now is 15 years , then the sum of their ages after 5 years is …………………….years [ 20 – 25 – 30 – 35 ] 55- The S.S of the two equations : x – 2 = 0 , y + 3 = 0 in R R is ……………….. [ {(2,3)} / {(-2, -3)} / {(2,-3)} / {(-2,3)} ] 56- Half of the number is……………………….[ 57- 3 = ……………………………[6 – 8 – 10 – 12 ]

4 | Page 58- √√ = ………………….. [ 9 / 3 / -9 / -3 ] 59-If , then x = …………………[2 – 3 – 9 – 81 ] 60-If 5x = 6 , then 10 x = ……………………. [ 3 – 12 – 20 – 30 ] 61- A rectangle of a perimeter 30 cm and its width is 5cm , then its length is…………………cm [ 5 – 10 – 15 – 20 ] 62- If x – y = 0 and xy = 16 , then y = ……………………..[ 4 / -4 / / 0 ] 63- If x is the additive identity element and y is the multiplicative identity element then ( ) ( ) ………………………. [ 10 – 5 – 9 – 3 ] 64- the ordered pair which satisfies the equation x – y = 1 is ………………… [ (1, 1) – (2, 1) – (1, 2) – ( , 1) ] 65- ( ) …………………..[ zero / / 1 / 2 ] Answers 1- c / 2- a / 3- d / 4- b / 5- a / 6- d / 7- b / 8- b / 9- b /10 –a / 11- b /12- a / 13- b 14- c / 15- c / 16- a / 17- a /18- c / 19- a / 20- b /21- a / 22-c / 23- d / 24- c / 25-a 26- b /27- c /28- d / 29- d / 30-c/ 31- c / 32- b / 33- b /34- d / 35-d /36-a /37- c 38-a / 39- c / 40- c / 41- a / 42-d / 43- b / 44- a / 45- a / 46-a / 47- c / 48- c / 49- b 50- b /51- d / 52- a /53- c / 54-b /55- c / 56-a / 57- c / 58- a /59- a / 60-b /61 –b 62- c / 63- a / 64 – b / 65-c

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