This section includes 7 InterviewSolutions, each offering curated multiple-choice questions to sharpen your Current Affairs knowledge and support exam preparation. Choose a topic below to get started.
| 2. |
M={1,a,7,-8} n={-2,3,b,5} find a and b if m+n={-1,2,9,-3} matrices |
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Explanation m+n ={-1, 2, 9, -3} by APPLYING values of given m and n {1, a, 7, -8} + {-2, 3, b, 5} = {-1, 2, 9, -3} solving the eqn {(1-2), (a+3), (7+b), (-8+5)} = {-1, 2, 9, -3} {-1, a+3, 7+b, -3} = {-1, 2, 9, -3} comparing the respective terms 2nd and 3rd term from the equation a+3=2 ; 7+b=9 a=2-3 ; b=9-7 a= -1 ; b=2 |
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| 3. |
By what numumber should 6 whole 2/9 be multiple get 42? |
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Answer» Step-by-step EXPLANATION: see in the photo |
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| 4. |
Estimate each sum to the nearest hundred also find the difference between the estimated sum and the actual sum 437+293 |
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Answer» ygxifyxhbjiggiucydgxycch Step-by-step EXPLANATION: |
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| 5. |
Multiply and write the product its lowest terms - 7 / 4 X 12/ 21 x (-1/2) |
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Answer» Answer: 7/4×12/21×(-1/2) 1/1×3/3×(-1/2) 1×1×(-1/2) -1/2 |
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| 6. |
10. A flower garden is 22.05 m long and 15 m wide. Sana wants to make aborder along one length using bricks that are 0.25m long.How many bricks will be needed? |
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Answer» Step-by-step EXPLANATION: PERIMETER of Flower GARDEN = 2 (22.05) + 2 (15) = 74.1 m = 7410 cm No. of Bricks needed Therefore, 296.4 Bricks are required to MAKE border. Bricks USED to border 1 longer side = 88.2 Bricks used to border 1 shorter side = 60 Hope it Helps! |
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| 7. |
Simplify(1-1/2)(1-1/3)1-1/4)....(1-1/200) |
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Answer» Answer: 1/200 Step-by-step EXPLANATION:
Answer is 1/200 |
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| 9. |
If two positive integers a and b are expressible in the form of a=p(q^2) and b=(p^3)q;p,q being prime numbers then find the lcm (a,b) and hcf(a,b) |
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| 10. |
Find the rationalising factor of 7-√5 |
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Answer» Answer: the rationalising FACTOR of 7 - √5 is 7 + √5 |
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| 11. |
2+2=........................ |
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Answer» Step-by-step explanation: 2+2=4................ |
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| 12. |
What is the equivalent fraction of 2/7 having numerator 10 |
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Answer» Answer: 10/35 Step-by-step explanation: EASY easy MULTIPLY 5 in 2 we get numerator as 10. so, multiplying 5 in both numerator and denominator we get 10/35 |
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| 13. |
find zeroes of the quadratic polynomial √3x2+10x-8√3 and verify the relationship between the zeroes and the coefficient |
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Answer» √3x2+10x-8√3 Relationship between zeroes and coefficients SUM of zeroes=-(coefficient of X)/coefficient of x^2=-10/√3 Product of zeroes=constant term/coefficient of x^2=-8√3/√3 I hope it's HELP you Plz MARK my answer as a BRAINLIEST answer |
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| 14. |
Cot (20°-Q) tan(70+Q)/sin (70° + Q)*sin (20°-o) |
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Answer» Answer: the RANGE off the DATA 13, 5,8,6,13,4,14 is:(a)10(B)13(C)1(d)14 |
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| 15. |
Prove that: cosA/ 1-tanA + sinA/ 1-cotA = sinA+cosA |
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Answer» Step-by-step EXPLANATION: I HOPE YOU UNDERSTAND ;-) |
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| 17. |
Find cube root of 6859 step by step pls |
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Answer» Step-by-step EXPLANATION: Since 6859 is a whole number, it is a perfect cube. The nearest previous perfect cube is 5832 and the nearest NEXT perfect cube is 8000 . 6859 is said to be a perfect cube because 19 X 19 x 19 is equal to 6859. .PLEASE MARK AS BRAINLIST PLS PLS PLS PLS PLS PLS PLS PLS PLS PLS PLS PLS PLS.PLEASE MARK BRAINLIST PREVIOUS ONE ALSO |
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| 18. |
2+2=only to my friend |
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Answer» 2+2=4. hope it helps U ✔ |
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| 19. |
Simplify (2/3)-³/(2/3)-⁴ step by step pls |
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Answer»
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| 20. |
How to pass 9 th boards |
Answer» simple concentrate on STUDIES ☑️☑️ |
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| 21. |
Determinant becomes from elementsofco-factors of 1-3너3 |
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| 22. |
Sqrt 3x+4=x slove this by factorisation plzzzz it's very urgent do it fast I will mark your ans as brainleast |
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Answer» 3x+4=x 4=x-3x 4=-2x -4/2=x x=-2....... HOPE it HELPS... |
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| 24. |
What is the point of intersection of the lines x=-2020 and y=2020 ? |
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Answer» The LINES MEET at the POINT (2019,2020) 4.0 |
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| 25. |
If(1,2),(4,y),(x,6) and (3,5) are the vertices of a parallelogram taken in order then find x and y... |
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| 26. |
If (a+1/a) ^2 =3 then a^3+1/a^3 equals? |
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Answer» |
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| 27. |
Find the polynomial of X^3 - x and the sum of its zeros |
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Answer» P(X)=x^3-x Relationship between zeroes and COEFFICIENTS Sum of zeroes=-(COEFFICIENT of x^2)/coefficient of x^3=-0/1=0 I hope it's HELP you Plz mark my answer as a brainliest answer |
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| 28. |
If 1/x+2 , 1/x+3 and 1/x+5are in Ap, find the value of x |
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Answer» Answer: |
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| 29. |
How do we get 60/√3=20√3 |
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Answer» 60/root 3 = root(3600/3) =root(1200) =root(400 * 3) =20 root 3 (PROVED) *PLEASE DO MARK ME AS THE BRAINLIEST* |
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| 30. |
An electrician buys an old refrigerator and spends 175 on painting it. If he sells it for 2720, making a profit of of 13 1/3%, at what price had he bought the refrigerator. |
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Answer» HIFJFFC Step-by-step EXPLANATION: |
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| 32. |
Fill in the blanksSimplificatio of-2/11 X 121/2.2 11/3 is |
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Answer» -2000X/603 Step-by-step EXPLANATION: |
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| 33. |
Solve the system of equation:root x + y = 11 ,&x + root y = 7for real values of x, and y?PLEASE DON'T SEND SOLUTION, I ALREADY KNOW THE SOLUTION THAT x = 4y = 9ONLY SEND PROCESS!!!IF YOU KNOW....... |
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Answer» Step-by-step EXPLANATION: √x+y=11 x+√y= 7 from eq 1... from eq 1...√y=7-x from eq 1...√y=7-xy=(7-x)^2 from eq 1...√y=7-xy=(7-x)^2from eq 2... from eq 1...√y=7-xy=(7-x)^2from eq 2...√x=11-y from eq 1...√y=7-xy=(7-x)^2from eq 2...√x=11-ysubstitute (7-x)^2 for y from eq 1...√y=7-xy=(7-x)^2from eq 2...√x=11-ysubstitute (7-x)^2 for y√x=11-(7-x)^2 from eq 1...√y=7-xy=(7-x)^2from eq 2...√x=11-ysubstitute (7-x)^2 for y√x=11-(7-x)^2square both sides from eq 1...√y=7-xy=(7-x)^2from eq 2...√x=11-ysubstitute (7-x)^2 for y√x=11-(7-x)^2square both sidesx=121-22(7-x)^2+(7-x)^4 from eq 1...√y=7-xy=(7-x)^2from eq 2...√x=11-ysubstitute (7-x)^2 for y√x=11-(7-x)^2square both sidesx=121-22(7-x)^2+(7-x)^4(7-x)^4=(x-7)^2*(x-7)^2=(x^2-14x+49)(x^2-14x-49)= from eq 1...√y=7-xy=(7-x)^2from eq 2...√x=11-ysubstitute (7-x)^2 for y√x=11-(7-x)^2square both sidesx=121-22(7-x)^2+(7-x)^4(7-x)^4=(x-7)^2*(x-7)^2=(x^2-14x+49)(x^2-14x-49)=x^4-28x^3+294x^2-1372x+2401 from eq 1...√y=7-xy=(7-x)^2from eq 2...√x=11-ysubstitute (7-x)^2 for y√x=11-(7-x)^2square both sidesx=121-22(7-x)^2+(7-x)^4(7-x)^4=(x-7)^2*(x-7)^2=(x^2-14x+49)(x^2-14x-49)=x^4-28x^3+294x^2-1372x+2401x=121-22x^2+308x-1078+x^4-28x^3+294x^2-1372x+2401 from eq 1...√y=7-xy=(7-x)^2from eq 2...√x=11-ysubstitute (7-x)^2 for y√x=11-(7-x)^2square both sidesx=121-22(7-x)^2+(7-x)^4(7-x)^4=(x-7)^2*(x-7)^2=(x^2-14x+49)(x^2-14x-49)=x^4-28x^3+294x^2-1372x+2401x=121-22x^2+308x-1078+x^4-28x^3+294x^2-1372x+24010=-x+121-22x^2+308x-1078+x^4-28x^3+294x^2-1372x+2401 from eq 1...√y=7-xy=(7-x)^2from eq 2...√x=11-ysubstitute (7-x)^2 for y√x=11-(7-x)^2square both sidesx=121-22(7-x)^2+(7-x)^4(7-x)^4=(x-7)^2*(x-7)^2=(x^2-14x+49)(x^2-14x-49)=x^4-28x^3+294x^2-1372x+2401x=121-22x^2+308x-1078+x^4-28x^3+294x^2-1372x+24010=-x+121-22x^2+308x-1078+x^4-28x^3+294x^2-1372x+2401x^4-28x^3+272x^2-1065x+1444=0 from eq 1...√y=7-xy=(7-x)^2from eq 2...√x=11-ysubstitute (7-x)^2 for y√x=11-(7-x)^2square both sidesx=121-22(7-x)^2+(7-x)^4(7-x)^4=(x-7)^2*(x-7)^2=(x^2-14x+49)(x^2-14x-49)=x^4-28x^3+294x^2-1372x+2401x=121-22x^2+308x-1078+x^4-28x^3+294x^2-1372x+24010=-x+121-22x^2+308x-1078+x^4-28x^3+294x^2-1372x+2401x^4-28x^3+272x^2-1065x+1444=0from the RATIONAL root theorem, POSSIBLE roots are factors of 1444 from eq 1...√y=7-xy=(7-x)^2from eq 2...√x=11-ysubstitute (7-x)^2 for y√x=11-(7-x)^2square both sidesx=121-22(7-x)^2+(7-x)^4(7-x)^4=(x-7)^2*(x-7)^2=(x^2-14x+49)(x^2-14x-49)=x^4-28x^3+294x^2-1372x+2401x=121-22x^2+308x-1078+x^4-28x^3+294x^2-1372x+24010=-x+121-22x^2+308x-1078+x^4-28x^3+294x^2-1372x+2401x^4-28x^3+272x^2-1065x+1444=0from the rational root theorem, possible roots are factors of 14444 is a factor of 1444 and a root of the equation... from eq 1...√y=7-xy=(7-x)^2from eq 2...√x=11-ysubstitute (7-x)^2 for y√x=11-(7-x)^2square both sidesx=121-22(7-x)^2+(7-x)^4(7-x)^4=(x-7)^2*(x-7)^2=(x^2-14x+49)(x^2-14x-49)=x^4-28x^3+294x^2-1372x+2401x=121-22x^2+308x-1078+x^4-28x^3+294x^2-1372x+24010=-x+121-22x^2+308x-1078+x^4-28x^3+294x^2-1372x+2401x^4-28x^3+272x^2-1065x+1444=0from the rational root theorem, possible roots are factors of 14444 is a factor of 1444 and a root of the equation...256-1792+4352-4260+1444=0 from eq 1...√y=7-xy=(7-x)^2from eq 2...√x=11-ysubstitute (7-x)^2 for y√x=11-(7-x)^2square both sidesx=121-22(7-x)^2+(7-x)^4(7-x)^4=(x-7)^2*(x-7)^2=(x^2-14x+49)(x^2-14x-49)=x^4-28x^3+294x^2-1372x+2401x=121-22x^2+308x-1078+x^4-28x^3+294x^2-1372x+24010=-x+121-22x^2+308x-1078+x^4-28x^3+294x^2-1372x+2401x^4-28x^3+272x^2-1065x+1444=0from the rational root theorem, possible roots are factors of 14444 is a factor of 1444 and a root of the equation...256-1792+4352-4260+1444=0-1536+4352-4260+1444=0 from eq 1...√y=7-xy=(7-x)^2from eq 2...√x=11-ysubstitute (7-x)^2 for y√x=11-(7-x)^2square both sidesx=121-22(7-x)^2+(7-x)^4(7-x)^4=(x-7)^2*(x-7)^2=(x^2-14x+49)(x^2-14x-49)=x^4-28x^3+294x^2-1372x+2401x=121-22x^2+308x-1078+x^4-28x^3+294x^2-1372x+24010=-x+121-22x^2+308x-1078+x^4-28x^3+294x^2-1372x+2401x^4-28x^3+272x^2-1065x+1444=0from the rational root theorem, possible roots are factors of 14444 is a factor of 1444 and a root of the equation...256-1792+4352-4260+1444=0-1536+4352-4260+1444=02816-4260+1444=0. -1444+1444=0 -1444+1444=00=0 [Solved..] |
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| 34. |
Question 12 all of the four |
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Answer» Answer: 12 a. 7x-1 =13 7x= 14 x=14/7 x=2 B. 2x+3(x-1) =5/2 2x +3x - 3 =5/2 5x = 5/2 +3 5x = 11/2 x= 11/10 c. (2x-3 ) /2 - (x+1)/3 =( 3x -8)/4 (2x-3 )3 - (x+1)2 =( 3x -8)6/4 6x - 9 - 2x -2 = (9x -24 )/2 4x -11=(9x - 24)/2 8x -22 = 9x -24 24-22 = 9x-8x 2= x d. - 1.5x = - 4.5 x= -4.5/-1.5 x = 3 if the answer is useful PLS MARK as brainliest ......plsssssssss |
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| 35. |
Tan inverse [1+cos(x/3) upon sin(x/3)] |
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Answer» HANG hbwbbeudhgehxuhdvevdhhebrbfjjfr |
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| 36. |
Solve [(3/5)²×(3/5)³]²÷(3/5)⁷ and write your answer in rational number |
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Answer» Answer:27/125 Step-by-step EXPLANATION: HOPE IT WORKS PLEASE MARK IT AS BRAINLIEST !!! |
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| 37. |
Determine values of p for which the quad eqn 2x^2+3x+p=0 has real roots |
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Answer» Answer: 2x^2+3x+p=0 |
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| 38. |
Richard and Stephen win some money and share it in the ratio 6:1. Richard gets £60 more than Stephen. How much did they get altogether? |
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Answer» RICHARD GOT $72 and STEPHEN got $ 12 Step-by-step explanation: |
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| 39. |
How many lakhs are there in 9 million?How many millions are there in 70 crores? I will mark u as brainlist |
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Answer» Step-by-step explanation: 1. 90 lakhs2. 700 MILLIONS |
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| 40. |
Find out of the following an irratitonal number 6root5 |
Answer» ANSWER:HEY MATE here is your answerStep-by-step explanation: Mark as brainliest and follow me |
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| 41. |
Find the polynomial of X^3 - x |
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Answer» Step-by-step explanation: X + (x3 - 1)1/2]5 + [x - (x3 - 1)1/2]5 = 2(5C0x5 + 5C2x3(x3 - 1) + 5C4x(x3 - 1)2) The highest power of TERM is 7 |
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| 42. |
Sachin got a pize moneyof Rs. 1200. He spent2/3 of the money on buying shoes forhimself and gave 1/4 of the remaining moneyfor charity. He also spent 1/3 of the remaining moneyto buy a gift for her friend. How much moneyis left with him?. |
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Answer» Step-by-step EXPLANATION: |
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| 43. |
Multiply the difference of-6/7 and -2/3 by their sum |
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Answer» muscular force is the answer.... PLZ mark me as BRAINIEST answers.... plz LIKE my answer..... |
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| 44. |
Expand each of the following, using suitable identities. (18x_11y) |
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Answer» Step-by-step EXPLANATION: Expand each of the FOLLOWING, USING suitable identities. (18x_11y) which of the following? |
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| 45. |
what is the sign and the ones digit when of the product when (-11) is multiplied with itself by 5 times |
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Answer» Step-by-step explanation: as you can see 1 when multiplied by 1 gives only 1 so 1×1×1×1×1=1 for ones digit because other digits wont AFFECT ones digit and even time product of - gives + but odd times product gives - so your ans is ones digit as 1 while -sign |
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| 46. |
If x^a/b =1 , then find the value of a. |
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Answer» a=0 Step-by-step explanation: as we know that any NUMBER raise to POWER 0=1 so we can also write it as, therefore, |
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| 47. |
Under root 2 is a polynomial of degree :(a) 2(b) o(c) 1(d) 1/2 |
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Answer» Answer: 1/2.................. |
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| 48. |
How to do this sums |
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Answer» Answer: Here is your answer Step-by-step EXPLANATION: |
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| 49. |
Pls view the attachment |
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Answer» Answer: Step-by-step EXPLANATION: Answer is in the IMAGE attached. HOPE this will HELP you.!!! |
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