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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.
| 1. |
(a - b)^2 is. please help me |
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Answer» pls mark me as the brainliest Step-by-step explanation: (a-b)²= a²-2(AB)+b² |
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| 2. |
Compute 4A?- 6B² matrix for the following:[3 2 -1 [3 A = 7 -6 0 B = 0 6. 15 2 -7 9 51 3 1][9 |
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Answer» A= ⎣ ⎢ ⎢ ⎡
1 1
1 2 −1
1 −3 3
⎦ ⎥ ⎥ ⎤
To PROVE : A 3 −6A 2 +5A+11I=O Consider, A 2 = ⎣ ⎢ ⎢ ⎡
1 1 2
1 2 −1
1 −3 3
⎦ ⎥ ⎥ ⎤
⎣ ⎢ ⎢ ⎡
1 1 2
1 2 −1
1 −3 3
⎦ ⎥ ⎥ ⎤
= ⎣ ⎢ ⎢ ⎡
1+1+2 1+2−6 2−1+6
1+2−1 1+4+3 2−2−3
1−3+3 1−6−9 2+3+9
⎦ ⎥ ⎥ ⎤
⇒A 2 = ⎣ ⎢ ⎢ ⎡
4 −3 7
2 8 −3
1 −14 14
⎦ ⎥ ⎥ ⎤
Now, A 3 =A 2 A = ⎣ ⎢ ⎢ ⎡
4 −3 7
2 8 −3
1 −14 14
⎦ ⎥ ⎥ ⎤
⎣ ⎢ ⎢ ⎡
1 1 2
1 2 −1
1 −3 3
⎦ ⎥ ⎥ ⎤
= ⎣ ⎢ ⎢ ⎡
4+2+2 −3+8−28 7−3+28
4+4−1 −3+16+14 7−6−14
4−6+3 −3−24−42 7+9+42
⎦ ⎥ ⎥ ⎤
A 3 = ⎣ ⎢ ⎢ ⎡
8 −23 32
7 27 −13
1 −69 58
⎦ ⎥ ⎥ ⎤
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| 3. |
To draw the graph of 2x - y - 4 = 0 if y = -4,then find the value of 'x'.(A)1(B)-1(C) O(D) -2 |
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Answer» (C) O is your RIGHT answer good MORNING |
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| 4. |
All the angle of scalene triangle are unequal |
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Answer» TRUE. . . . . . . . . . #THE GREAT SHREYA❤ |
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| 5. |
Is it a polynomial in case of a polynomial write it's degree x^3 - 5x - 2 |
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Answer» YES it is a POLYNOMIAL, |
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| 6. |
Solve √√3125 × (5−4 × 55) |
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Answer» Answer: Simplify the radical by BREAKING the radicand up into a product of known factors, ASSUMING positive real numbers. Exact FORM: − 475 4 √ 5 Decimal Form: − 710.29067108 … Step-by-step EXPLANATION: |
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| 7. |
Pls solve this 1 question |
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Answer» bro i DONT no the the ANSWERE sorry i will HELP you in your other question |
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| 8. |
B]1] For simultaneous equations.31x + 27 y = 89, 27x+31y = 85 Find x- y |
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| 9. |
If -5 is a root of the quadratic equation 2xsquare +px -15 =0 , then p = ?? |
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Answer» If - 5 is root. x = -5 Put value of x in equation => 2 × (-5)^2 + p × (-5) - 15 =0 => 2 × 25 - 5p - 15 = 0 => 50 - 15 - 5p = 0 => 35 - 5p = 0 => 35 = 5p => 35/5 = p => p = 7 p is 7 |
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| 10. |
(ii) The modulus of a - ib is |
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Answer» a+IB Step-by-step EXPLANATION: |
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| 11. |
2+18+18(18÷18)-3Evaluate. Solve the problem |
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Answer» Answer: 36 Step-by-step explanation: bodmas full form b= bracket o=of d=division m= multiple a=addition s = SUBTRACTION |
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| 12. |
Value of x is 22/7____3.06____75.97__or none |
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Answer» Answer: VALUE of x is 22/7. Step-by-step explanation: |
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| 13. |
Anu has Rs.150. She gave 3/5 of this to Rajani and the remaining to Payal. Howmuch money does Rajani and Payal have now respectively?Rs.90 and Rs.60O Rs.60 and Rs.90Rs. 110 and Rs.40Rs.40 and Rs.110 |
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Answer» RAGINI has 90 Step-by-step EXPLANATION: PAYAL has 60 mark as BRAINLIEST |
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| 14. |
If x/2a+x/2b=2 find the value of x |
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Answer» Answer: x+2a)/(x-2a) + (x+2b)/(x-2b)=2 STEP-by-step explanation Given x=4ab/a+b We need to find for x+2a/x-2a + x+2b/x-2b Follow the below steps to find the solution. Step 1: x=4ab / a+ b Simplify as =>x=2a x 2b / a + b =>x/2a=2b / a + b By componendo dividend, (x+2a)/(x-2a)=(2b+a+b)/(2b-a-b) Simplify RHS. (x+2a)/(x-2a)=(a+3b)/(b-a) Step 2: Similarly (x+2b)/(x-2b)=(3a+b)/(a- b) Now we know: (x+2a) / (x-2a) + (x+2b)/(x-2b) =(a+3b)/(b-a) + (3a+b)/(a- b) =(a+3b)/(b-a) - (3a+b)/(a- b) =a+3b-3a-b/b-a =2b-2a/b-a =2(b-a)/b-a =2 Finally we GET, (x+2a)/(x-2a) + (x+2b)/(x-2b)=2 Step-by-step explanation: |
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| 15. |
Find factor of 2x sq-x-1 |
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Answer» |
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| 16. |
If m(x) = 5 - 4x, then the value of m(3) + m(3) - m(2) |
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Answer» QUALITY OF OF IT'S OF IT'S THE THE THE THE THE THE THE THE THE THE THE THE THE THE THE THERE OF OF OF IT'S THE IN REGARDS IN RID YOU OF THE IN |
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| 17. |
If radius and height of the cylinder are 70 cm and 2.1 cm find its curved surfacearea. |
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Answer» FORMULA = 2πrh 2*22/7*70*2.1 924 |
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| 18. |
Plot the following points on graph sheet. And verify if they lieon a line A (4,0), B(4, 2), C(4, 6)plz answer fast in paper |
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| 19. |
Solve 2x -3 = x + 2 solve this question |
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Answer» Step-by-step EXPLANATION: HERE IS YOUR ANSWERPLEASE MARK ME BRAINLIST.. |
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| 20. |
Identify the operations in forming the expression: 3y – 7 |
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Answer» it is BINOMIAL |
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| 22. |
PageMath0 o compare the practionand 유얘Loft |
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Answer» Step-by-step explanation: G only ❤️❤️❤️ Cm to shw ur B.o.o.b.s and see My.16 cm d.i.c.k |
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| 23. |
(4x4 = 10)33ra) The perimeter of an isosceles triangle is 32 cm. The ratio of the equal side to itsbase is 3:2. Find the area of the triangle. |
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Answer» [32\sqrt{2}cm^{2} ] Given\; perimeter\; of\; isosceles\; triangle = 32 cm We\; have\; ratio\; of\; equal\; side\; and\; base = 3 : 2 Thus,\; let\; the \; sides\; of\; triangle\; be\; AB = AC = 3x\; and\; BC = 2x \therefore Perimeter \; of\; a\; triangle = 32 cm 3x + 3x + 2x = 32 8x = 32 x=\frac{32}{8} x = 4 cm So, AC = AB = 3 \times 4 cm\; and\; BC = 2 \times 4 cm AC = AB = 12 cm\; and \; BC = 8 cm
Now, a = 8\; cm, b = 12\; cm, c = 12 \; cm Using Heron’s formula S= \frac{a+b+c}{2}=\frac{8+12+12}{2}=\frac{32}{2}=16cm \therefore\; AREA \; of\; isosceles\; triangle\; \Delta ABC =\sqrt{S\left ( S-a \right )\left ( S-b \right )\left ( S-c \right )} =\sqrt{16\left ( 16-8 \right )\left ( 16-12 \right )\left ( 16-12 \right )} = \sqrt{16\times 8\times 4\times 4} = \sqrt{4\times 4\times 4\times 2\times 4\times 4} =4\times 4 \sqrt{ 2\times 2\times 2}=4\times 4\times 2\sqrt{2}=32\sqrt{2}\; cm^{2} HENCE,\; the\; area\; of\; isosceles \; triangle\; is\; 32\sqrt{2}\; cm^{2}
Step-by-step explanation: |
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| 24. |
The price of car increased from 180000 to 200000 .find the increase percentage |
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Answer» Answer: 11.1 % Step-by-step explanation: increased price = 200000 rs. increased % = = 11.1 % |
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| 25. |
You have ƻ 500. If you give ƻ 100.75 to your brother and ƻ 65.50 to your friend, the money left with you is _____ |
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Answer» 167.25 - 500 = answer Step-by-step EXPLANATION: pleaseark as BRAINLIEST |
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| 26. |
Presented in table belowGlass Interval 10-25, 25-40 40-55 65-70 70-85 85-100Number ofStudentsNumber of 29666(a) Find the average marks obtained bythe students.() 61(11) 62(lit) 63(iv) 64 |
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Answer» Answer: Step-by-step EXPLANATION: |
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| 27. |
write the sample space S and the number of sample points n(s) if two coins are tossed simultaneously |
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Answer» S={(H,H),(H,T),(T,H),(T,T)} Number of sample SPACE n(S)=4 D= getting no head D={(T,T)} n(D)=1 please follow jai HIND |
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| 28. |
Who was the first person to compute digits in the decimal expansion of π?? |
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Answer» Step-by-step explanation: Archimedes The Greek genius Archimedes was the FIRST to compute DIGITS in the decimal expansion of π . He showed 3.140845 < π < 3.142857. Aryabhatta (476 – 550 C.E.) , the great Indian mathematician and astronomer, found the value of π CORRECT to FOUR decimal places |
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| 30. |
Express 0.00000000000003904 in standard form |
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Answer» Answer: 3904 × 10^-13 PLZ MARK me BRAINLIEST and folow me plz |
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| 31. |
3/-5×-5/3 find the value |
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Answer» Step-by-step EXPLANATION: |
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| 32. |
What is the squre root of decimal number 556.37 |
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Answer» Answer: 23.587 |
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| 33. |
4. Lеt f(x) = 5xy — 7х2 – у2+ 3x thenа(а) 5х -14х + 3(b) 5у — 14х + 3(c) 5у — 14х — 2y(d) 5x — 14х + 3x |
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Answer» twotwotwowyluryelyek6oe6eo6eo6eo6ke5ek6ketektek5ektektektwktsktsktsktsktskyskydkysktskyskyskysktsktjaysktskrajyekyke |
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| 34. |
Then the value of f(-2) is |
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Answer» Answer: |
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| 35. |
4x4 2008+ 20:43 +35x2+25X +6 = 0given that the rest arehn A.P |
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Answer» Answer: do u want to KNOW a SECRET i don't know answer. PLEASE don't waste UR time by reading my answer.keep smiling.study well. mark as Brainliest |
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| 36. |
Explain the Matrices Operations. |
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Answer» Answer: Matrix operations MAINLY involve three algebraic operations which are addition of matrices, subtraction of matrices, and MULTIPLICATION of matrices. Matrix is a rectangular array of numbers or expressions ARRANGED in rows and columns. Important applications of matrices can be found in mathematics.All these operations on matrices are covered in this ARTICLE along with their properties and solved examples. Before starting with the operation, it is important to know about the elementary operation of a matrix in detail which is given in the linked ARTICLES below. |
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| 37. |
The value of5x+2will still be |
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Answer» Step-by-step explanation: 5 x = - 2 x = - 2 / 5 Hope it HELPS. |
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| 38. |
Write the equation 2x=3y-17 in generl form |
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Answer» 2x=3y-17 or,2x-3y= -17 or,3y-2x=17 |
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| 39. |
What is value of polynomial 2x+7x-5, when x=3 |
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Answer» Answer: 2x+7x-5 = 22 Step-by-step EXPLANATION: MARK brainliest 6+21-5 27-5 22 |
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| 40. |
If a=3 and t6=27,find the sum of the first sixth term of the Ap |
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Answer» Answer: S6 = 90 Step-by-step explanation: hello friend given a = 3 which means FIRST term and t6 = 27 which means sixth term generally tn = a + (n-1)d given t6 = 27 substitute t = 6 in tn = a + (n-1)d which means t6 = a + 5D a + 5d = 27 3 + 5d = 27 5d = 24 d = 24/5 where d is common difference in ap to first sum of first six terms sum of n terms of an ap is Sn = n/2[2a+(n-1)d] we have to find S6 S6 = 6/2 [ 2(3)+(6-1)24/5] = 3[ 6 + 5 × 24/5] = 3[ 6 + 24] = 3(30) = 90 hope it helps you MARK me brainliest if you like my explanation and answer |
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| 41. |
Find the lateral surface area and total surface area of a cube of edge 10cm |
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Answer» Answer: LATERAL SURFACE AREA = 400 sq.cm Total surface area = 600 sq.cm hope it helps you |
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| 42. |
Complete the pattern: 26,39,52,65, ___ |
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Answer» Answer: Step-by-step explanation: 13×2= 26 13×3= 39 13×4= 52 13×5= 65 13×6= 78 |
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| 43. |
A coin is tossed once. The probability of getting head is_________ |
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Answer» A COIN is tossed once. The possibility of GETTING HEAD is 1. Therefore Probability of getting head is 1/2 |
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| 44. |
John requests a 2-year loan of RM6 500 from Traders Bank. The bank approves the loan at an annualinterest rate of 14%.a) What is the simple interest rate of the loan?b) What is the maturity value of the loan? |
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Answer» Answer: |
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| 45. |
Calculate median for the data: 3, 5, 8, 2, 9, 11, 7 |
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Answer» DATA in ASCENDING order=2,3,5,7,8,9,11 median=7 |
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| 46. |
Convert 412 quintals into kg |
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Answer» Step-by-step EXPLANATION: |
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| 48. |
in a frequency distribution, the mid value of class 27.5 and the width of the class is 5. find the upper limit |
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Answer» Answer: given, (UPPER LIMIT+LOWER limit)/2=27.5 Upper limit+Lower limit=2×27.5=55•••eq.1 Also, Upper Limit - Lower limit=class width=5•••eq.2 On ADDING eq.2 AMD eq.1,we get: Upper limit+lower limit+upper limit-lower limit=55+5 2Upper limit=60 So,Upper limit=30. |
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| 49. |
×2=5×+4 is a linar polynomial |
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Answer» No Step-by-step EXPLANATION: because their is x² so it is not a LINEAR POLYNOMIAL it is QUADRATIC polynomial |
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