This section includes InterviewSolutions, each offering curated multiple-choice questions to sharpen your knowledge and support exam preparation. Choose a topic below to get started.
| 20451. |
X square+3x-40=0 factorise it |
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Answer» X = 5 and -8 Step-by-step EXPLANATION: x²+3x-40 = 0 (x-5)(x+8) = 0 x-5 = 0 => x = 5 x+8 = 0 => x = -8 or x²+3x-40 = 0 x²+8x-5x-40 = 0 x(x+8)-5(x+8) = 0 (x-5)(x+8) = 0 x-5 = 0 => x = 5 x+8 = 0 => x = -8 |
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| 20453. |
) Sum of the roots of a quadratic equation is double their product. Find k if equation is x² - 4kx + k + 3 = 0 |
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Answer» 4k=2k+6 2k=6 k=3 |
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| 20454. |
The ability of molecules of matter to flow is called |
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Answer» Answer: |
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| 20455. |
The product of 2 and a number is increased by 9. the result is -17 |
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Answer» let the number be x,, then, 2x+9=17 2x=17-9 x=8/2 x= 4 please MARK me as BRAINLIEST |
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| 20456. |
69035617231074659910×7773647281887310927= |
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Answer» Answer: 5.3665854e+38 Step-by-step EXPLANATION: |
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| 20457. |
With steps Solve: 2 3/7 x 4 2/7- |
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Answer» g7666666666y you REQUESTED for a RAFT of my HOUSE in as the LAST of our tenancy |
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| 20458. |
Find the common difference of an AP whose 26th term is 160 and first term is 10 |
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| 20459. |
Construct quadrilateral PQRS, given PQ=5cm, QR=5.5cm, RS=6cm, SP=8.9cm and ∠ =60. |
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| 20460. |
Evaluate (1) 1¹⁸ (2) (-1) (3) 2⁷ (4) -(7)³ (5) (-3)² (6) (-10)³ |
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Answer» Step-by-step EXPLANATION: |
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| 20461. |
Please fast answerclass 8chapter 2 Linear Equations in one variable chapter 3 understanding quadrilateralschapter 4 Practical Geometrychapter 5 Data handling |
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| 20463. |
✏What is €? ✏what is ¥ ? ✏what is $?✏what is ¢?✏what is π?✏what is ® ? ✏what is ©?✏ what is £ ? ab answer karo (≧▽≦) |
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Answer» 1. € is the symbol for euro, a type of currency used in MUCH of Europe (specifically the Eurozone) and some other countries such as Montenegro and Kosovo. 2. ¥ is the symbol for yen (or yuan), a type of currency used in China and Japan. 3. ¢ is the symbol for cent, a type of currency used in many countries (specifically the ones that also utilize dollars, such as the USA, Australia, and Canada). 4. T is the symbol for PI, an IRRATIONAL number that is used for many mathematical calculations. 5. Ⓡ is the Registered Trademark symbol, used to PROVIDE notice that the preceding word has been registered with a national trademark office. 6. Ⓒ is the symbol for copyright, used to identify the owner of COPYRIGHTED work (such as products, literature, or works of art). 7. £ is the symbol for pound sterling, the currency used in Great Britain. |
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| 20464. |
Sub maths class 7 spammers will be reported strictlyfull answer |
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Answer» NHI pta Step-by-step EXPLANATION: |
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| 20465. |
*निम्न में से विषम भिन्न को चुनिए।* 1️⃣ 1/4 2️⃣ 2/7 3️⃣ 6/5 4️⃣ 2/3 |
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| 20466. |
The probability that a missile hits a target successfully is 0.75. In order to destroy the target completely, at least three successful hits are required. Then the minimum number of missiles that have to be fired so that the probability of completely destroying the target is NOT less than 0.95, is_____.please write the full solutioncorrect solution will be marked as brainliest answer |
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Answer» Answer: Correct option is A 6 P=0.75= 4 and q= 4 1
PROBABILITY (of destroying TARGET) ≥0.95 n C 3 ( 4 3 ) 3 ( 4 1 ) n−3 + n C 4 ( 4 3 ) 4 ( 4 1 ) n−4 +...+ n C n ( 4 3 ) n ( 4 1 ) 0 ≥ 100 95
⇒1−{ n C 0 ( 4 3 ) 0 ( 4 1 ) n + n C 1 ( 4 3 ) 1 ( 4 1 ) n−1 + n C 2 ( 4 3 ) 2 ( 4 1 ) n−2 }≥ 100 95
⇒1− 100 95 ≥ 4 n
1 + 4 n
3n + 2.4 n
9n(n−1)
⇒ 20 1 ≥ 2.4 n
2+6n+9n 2 −9n
⇒ 20 2 2n+1
≥2−3n+9n 2
⇒2 2n−1 ≥10−15n+45n 2
n=6 SATISFY the condition So minimum value of n=6 |
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| 20467. |
The price of 3 pen and 4 note book is 110 rupees; and the price of 3 pen and 2 note book is 70 rupees. What is the price of a pen ?And the price of a note book? |
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Answer» Answer: Pen=10 Pen=10Note book=20 Step-by-step explanation: Solution: Multiply by 5, 15 Pen +20 Notebook =550 rupees 7 Pen +5 Notebooks =170 rupees Multiply by 4, 28 Pen +20 Notebook =680 rupees 15 Pen +20 Notebook =550 rupees Equating and solving for Pen, Cancelling notebook, 13 Pen =130 HENCE, Pen =10 rupees Substituting, 3(10)+4 Notebook =110 4 Notebook =110−30 Hence, Notebook =20 rupees |
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| 20468. |
Give me answers द मार्केट प्राइस हॉनर क्रिकेट बैट इन रूपीस |
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Answer» ok Step-by-step EXPLANATION: |
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| 20469. |
√0.0144 * y = 1.2, then y is |
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Answer» so re BRO പക്ഷേ അതുകണ്ട് അമ്മ ഒരിക്കലും കണ്ണീര് പൊഴിക്കരുത്. ഉമ്മ കോടതിയില് പോയി ... MISSING: ഉറങ്ങികോളു കാലത്ത് എഴുന്നേറ്റു പോകേണ്ടത് അല്ലെ Step-by-step EXPLANATION: please click branles point |
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| 20470. |
Simplify (2-¹+5-¹) ²+(2-¹+3-¹) ² |
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Answer» hfffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffff Step-by-step explanation: 67888888888888888888865jn |
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| 20471. |
What is the value of the is "5 mare than -2 is |
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Answer» The value is 3. Step-by-step explanation: A number 5 more than -2 can be FOUND like this: -2 + 5 = 3 Therefore, a number 5 more than -2 is 3. I HOPE this helps!! Regards, Lilac584 |
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| 20472. |
Find the lenth of the diametre of a circle of radius 3.8 cm |
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Answer» d=7.6 Step-by-step EXPLANATION: |
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| 20473. |
What is the answer for:a) 24/9 - 19/12b) 144/828c) 378/462 d) _______ - (+34567) = 634618e) (15/7) x (23/4)f)George's forty two chickens laid an average of 8 eggs each per week. George sold those eggs for Rs. 90 per dozen. How much money did he collect in two weeks if he sold all his eggs.f) 147/252 |
| Answer» SORRY i RAN out of SPACE | |
| 20474. |
Solve for x (x+1) +(x+2) = (x-3)4 2 2(x-1) 3 |
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Answer» Step-by-step EXPLANATION: X(x+1)+(x+2)=(x−3)}{x(x+1)}}+(x+2)=(x-3)x(x+1)+(x+2)=(x−3) 2++(+2)=(−3) |
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| 20475. |
Someone help my homework class 9 |
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Answer» i. x² - 23x + 120 x² - 23x + 120 = x² - 15x - 8X + 120 = x(x - 15) - 8(x - 15) = (x - 8)(x - 15) (Answer) ——————————————————— ii. 3x² + 13x + 4 3x² + 13x + 4 = 3x² + 12x + x + 4 = 3x(x + 4) + 1(x + 4) = (3x + 1)(x + 4) (Answer) ——————————————————— iii. p² - 17p - 38 p² - 17p - 38 = p² - 19p + 2p - 38 = p(p - 19) + 2(p - 19) = (p + 2)(p - 19) (Answer) ——————————————————— iv. r² - 10r + 21 r² - 10r + 21 = r² - 7r - 3r + 21 = r(r - 7) - 3(r - 7) = (r - 3)(r - 7) (Answer) ——————————————————— v. p² + 8p - 84 p² + 8p - 84 = p² - 6p + 14p - 84 = p(p - 6) + 14(p - 6) = (p + 14)(p - 6) (Answer) i. 8xy³ + 12x²y² 8xy³ + 12x²y² = 4xy²(2y + 3x) (Answer) ——————————————————— ii. 3x³ + 2x² - 19x + 6 3x³ + 2x² - 19x + 6 = 3x³ + 9x² - 7x² - 21x + 2x + 6 = 3x²(x + 3) - 7x(x + 3) + 2(x + 3) = (x + 3)(3x² - 7x + 2) = (x + 3)[3x² - 6x - x + 2] = (x + 3)[3x(x - 2) - 1(x - 2)] = (x + 3)(3x - 1)(x - 2) (Answer) ——————————————————— iii. x³ - 23x² + 142X - 120 x³ - 23x² + 142x - 120 = x³ - x² - 22x² + 22x + 120x - 120 = x²(x - 1) - 22x(x - 1) + 120(x - 1) = (x - 1)[x² - 22x + 120] = (x - 1)[x² - 10x - 12x + 120] = (x - 1)[x(x - 10) - 12(x - 10)] = (x - 1)(x - 10)(x - 12) (Answer) ——————————————————— iv. x³ - 6x² + 11x - 6 x³ - 6x² + 11x - 6 = x³ - x² - 5x² + 5X + 6x - 6 = x²(x - 1) - 5x(x - 1) + 6(x - 1) = (x - 1)[x² - 5x + 6] = (x - 1)[x² - 3x - 2x + 6] = (x - 1)[x(x - 3) - 2(x - 3)] = (x - 1)(x - 2)(x - 3) (Answer) |
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| 20476. |
Pls answer pls and mark as vrainlist |
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Answer» Answer: the LOWEST degree of volition |
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| 20477. |
Prove that:sinA.secA.cotA=1 |
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Answer» Step-by-step EXPLANATION: |
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| 20478. |
15) If (1, 2), (4, y), (x, 6) and (3, 5) are the vertices of a parallelogram taken in order, findx and y. O (a) 6 and 3 O (b) 4 and -3 O (c)-3 and 6 (d) none of the above d |
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Answer» Step-by-step EXPLANATION: Let A(1,2), B(4,y),C(x,6) and D(3,5) are the VERTICES of a parallelogram ABCD .AC and BD are the diagonals . O is the midpoint of AC and BD. If O is the mid-point of AC ,then the coordinates of O are =( 2 1+x
, 2 2+6
)=( 2 x+1
,4) If O is the mid-point of BD then coordinates of O are ( 2 4+3
, 2 5+y
)=( 2 7
, 2 5+y
) SINCE both coordinates are of the same point O ∴ 2 1+x
= 2 7
⇒1+x=7 ⇒x=7−1=6 ∴ 2 5+y
=4 ⇒5+y=8 ⇒y=8−5=3 Hence x=6 and y=3. |
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| 20479. |
Hlo good morning friends mera koi folower hai kya . |
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Answer» |
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| 20480. |
Cumulative frequency polygon is also called |
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Answer» ogive Step-by-step EXPLANATION: |
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| 20481. |
6. The digit at the tens place of a two-digit number is four times that is the units place. If the digits arereversed, the new number will be 54 less than the original number. Find the number |
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Answer» Answer: The SUM of the DIGITS of a two-digit number is 12. If the new number formed by reversing the digits is greater than the original number by 54, FIND the ... |
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| 20482. |
Solve the quadratic equation z^2+4iz+4=0 |
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Answer» Answer: Step-by-step explanation: Simplifying z2 + 4iz + -4 = 0 Reorder the TERMS: -4 + 4iz + z2 = 0 Solving -4 + 4iz + z2 = 0 Solving for variable 'i'. Move all terms containing i to the left, all other terms to the right. Add '4' to each side of the equation. -4 + 4iz + 4 + z2 = 0 + 4 Reorder the terms: -4 + 4 + 4iz + z2 = 0 + 4 Combine like terms: -4 + 4 = 0 0 + 4iz + z2 = 0 + 4 4iz + z2 = 0 + 4 Combine like terms: 0 + 4 = 4 4iz + z2 = 4 Add '-1z2' to each side of the equation. 4iz + z2 + -1z2 = 4 + -1z2 Combine like terms: z2 + -1z2 = 0 4iz + 0 = 4 + -1z2 4iz = 4 + -1z2 Divide each side by '4z'. i = z-1 + -0.25z Simplifying i = z-1 + -0.25z |
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| 20483. |
Hii guys this is my ins. ta id (amitkumar01181)plz foll.ow me |
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Answer» OK FOLLOWED you Ok ok ok ok |
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| 20484. |
If the set A has 3 elements and the set B = {3,4,5}, then find the number of elements in (AxB)▬▬▬▬▬▬▬▬▬▬▬▬▬▬▬▬▬▬▬▬▬▬▬▬▬▬▬▬▬▬▬▬▬▬▬▬▬▬▬▬ Dont Know? Dont Attend. No Spam, Wrong Answers.If the set A has 3 elements and the set B = {3,4,5}, then find the number of elements in (AxB)▬▬▬▬▬▬▬▬▬▬▬▬▬▬▬▬▬▬▬▬▬▬▬▬▬▬▬▬▬▬▬▬▬▬▬▬▬▬▬▬ Dont Know? Dont Attend. No Spam, Wrong Answers.⇏You will not gain any points, if you did so. Because there exists a report option. |
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Answer» Answer: OTHERS STORY WRITTEN BY PEN MY STORY WRITTEN BY PAIN - THE JOKER J - JOYFUL O - OPPOSITE FROM OTHERS K - KILLER MIND E - EMOTIONAL PLAYER R = REAL RACE PAIN IN HEART REVENGE IN EYES STILL KEEPING SMILE ON FACE IS A REAL JOKER |
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| 20485. |
14) The coordinates of a point A, where AB is the diameter of a circle whose centre is (2, - 3) and B is (1, 4) O (a) (1,-9) O (b) (3,-10) O (c) (-10,2) 0 (d) (0,9) |
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| 20486. |
Yez rock i remember u hehe im fine |
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Answer» ohhhhhhhhhhhhhhhhhhhhhhh |
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| 20487. |
The value of tan2theta/1+tan2theta+ cot2theta/1+cot2theta is equal toa)1b)2c)3d)none of these |
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Answer» Answer: Step-by-step explanation: |
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| 20488. |
If 3 tan α = 4 ,and 2 SEᑕ α = 3 k+ 1 ,then find k if α is acute . |
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Answer» Step-by-step explanation: 3 tanα=4 tanα= 4/3 secα= 3k+1 We KNOW that sec²-tan²=1 so, (3k+1)²-(4/3)²=1 (3k+1)²= 1+(4/3)² (3k+1)²= 1+16/9 (3k+1)²= 25/9 on taking root both SIDE we GET 3k+1= ±5/3 3k+1= 5/3 3k= 5/3-1 3k= 2/3 k= 2/9 3k+1= -5/3 3k= -5/3-1 3k= -8/3 k= -8/9
#666
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| 20489. |
A triangle having two side equal is called ? |
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Answer» Step-by-step explanation: |
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| 20490. |
Please fast answer Class 8 |
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Answer» (1) 100+x=180°(adjacent sides of a ||gram are supplementary ) x=180-100 :. x=80° y=100° (opp angles of a ||gram are EQUAL) z=x (opp angles of a ||gram are equal) therefore, x=80° y=100° z=80° hope it helps |
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| 20491. |
What is Gravity??#jkday Eat points wid ur IDs xD |
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Answer» #THANKS for the poin.ts #______ |
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| 20492. |
Which is greater 5.9 Or 5.90wub mathsclass7 spammers will be reported strictlyanswer fully |
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Answer» 5.90 Step-by-step EXPLANATION: |
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| 20493. |
B. The digit at the tens place of a two-digit number is four times that is the units place. If the digits arereversed, the new number will be 54 less than the original number. Find the number |
Answer» Let the digit's in tens place be xLet the digit's in tens place be xand digit in units place be yLet the digit's in tens place be xand digit in units place be yHence the original NUMBER will be xy=10×x+yLet the digit's in tens place be xand digit in units place be yHence the original number will be xy=10×x+yGiven that x=4yLet the digit's in tens place be xand digit in units place be yHence the original number will be xy=10×x+yGiven that x=4yThen the REVERSED number will be yx=10×y+xLet the digit's in tens place be xand digit in units place be yHence the original number will be xy=10×x+yGiven that x=4yThen the reversed number will be yx=10×y+xGiven:Let the digit's in tens place be xand digit in units place be yHence the original number will be xy=10×x+yGiven that x=4yThen the reversed number will be yx=10×y+xGiven: yx=xy−27Let the digit's in tens place be xand digit in units place be yHence the original number will be xy=10×x+yGiven that x=4yThen the reversed number will be yx=10×y+xGiven: yx=xy−2710y+x=10x+y−27Let the digit's in tens place be xand digit in units place be yHence the original number will be xy=10×x+yGiven that x=4yThen the reversed number will be yx=10×y+xGiven: yx=xy−2710y+x=10x+y−27 9x=9y+27Let the digit's in tens place be xand digit in units place be yHence the original number will be xy=10×x+yGiven that x=4yThen the reversed number will be yx=10×y+xGiven: yx=xy−2710y+x=10x+y−27 9x=9y+27 x=y+3Let the digit's in tens place be xand digit in units place be yHence the original number will be xy=10×x+yGiven that x=4yThen the reversed number will be yx=10×y+xGiven: yx=xy−2710y+x=10x+y−27 9x=9y+27 x=y+3 4y=y+3 [ ∵ x=4y ]Let the digit's in tens place be xand digit in units place be yHence the original number will be xy=10×x+yGiven that x=4yThen the reversed number will be yx=10×y+xGiven: yx=xy−2710y+x=10x+y−27 9x=9y+27 x=y+3 4y=y+3 [ ∵ x=4y ] 3y=3Let the digit's in tens place be xand digit in units place be yHence the original number will be xy=10×x+yGiven that x=4yThen the reversed number will be yx=10×y+xGiven: yx=xy−2710y+x=10x+y−27 9x=9y+27 x=y+3 4y=y+3 [ ∵ x=4y ] 3y=3 y=1Let the digit's in tens place be xand digit in units place be yHence the original number will be xy=10×x+yGiven that x=4yThen the reversed number will be yx=10×y+xGiven: yx=xy−2710y+x=10x+y−27 9x=9y+27 x=y+3 4y=y+3 [ ∵ x=4y ] 3y=3 y=1and x=4(1)=4Let the digit's in tens place be xand digit in units place be yHence the original number will be xy=10×x+yGiven that x=4yThen the reversed number will be yx=10×y+xGiven: yx=xy−2710y+x=10x+y−27 9x=9y+27 x=y+3 4y=y+3 [ ∵ x=4y ] 3y=3 y=1and x=4(1)=4∴ The original number =41 |
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| 20494. |
If tanθ+cotθ=2, then what will be the value of tan^9θ+cot^7θ?This question was from Aakash FST, asking now since the time to submit is over. |
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Answer» Answer: Aakash Medical For CLASS 11TH, Class 12TH STUDYING & Class 12th Passed · Two-Year Integrated Classroom/Hybrid Course for NEET (For Class 10TH |
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| 20495. |
How many sides does a regular polygon have if each of its interior angles is 140 ? |
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Answer» GIVEN that, ↝ Each interior angle of a regular polygon is 140°. Let assume that ↝ Exterior angle of a regular polygon be x°. and ↝ Number of SIDES of a regular polygon be 'n'. We know, Interior angle and exterior angle of a regular polygon is connected by the relationship So, using this, relationship Further, We know that Number of sides and exterior angle of a regular polygon is connected by the relationship So, using this release, we GET ▬▬▬▬▬▬▬▬▬▬▬▬▬▬▬▬▬▬▬▬▬▬▬▬ Additional Information :- Properties of a triangle A triangle has three sides, three angles, and three vertices. The sum of all internal angles of a triangle is 180°. The sum of any two sides of a triangle is GREATER than the the third side. The side opposite to the LARGEST angle is always greater. The angle opposite to longest side is always greater. Exterior angle of the triangle is equal to the sum of its interior opposite angles. Sum of all exterior angles of a triangle is 360° |
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| 20496. |
square on the diagonal of a cube has an area of 1875 sq. cm . Calculate : i) the side of the cube . ii) the total surface area of the cube . |
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Answer» Answer: Area of CUBE Step-by-step explanation: But given that the square on the DIAGONAL of a cube has an area of 1875 sq.cm. THUS, the total SURFACE area of the cube is 3750 sq.cm. |
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| 20497. |
Please help me exam paper submite karne ak hai abhi jaldi help karo |
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Answer» Answer: no CHEATING. you should not cheat. In fact, wihout cheating you can find your real STRENGTHS and WEAKNESSES and WORK on it in the next exam |
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| 20498. |
Can we add (x^3+8x^2+9) and (x+x^3)? If yes, find the sum |
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Answer» 2x³ + 8x² + X + 9 PLEASE MARK AS BRAINLIEST. :-) |
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| 20499. |
In ∆ABC, AB = AC , ∠A = 5y + 20° and each base angle is 2 /5 th of the ∠A . Find ∠A . |
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Answer» YES just yes IDK lol hehe |
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| 20500. |
Aunty ji dhang se dekhne ka kast karen |
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