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.
| 21251. |
Find the square root of 5.32 correct to two decimal placestotal explanation |
|
Answer» 66666666666677877777 |
|
| 21252. |
Write the number name of 306913 in International system. |
|
Answer» three hundred SIX thousand NINE hundred thirteen Step-by-step EXPLANATION: |
|
| 21253. |
43:57::11 ? solve it |
|
Answer» Step-by-step EXPLANATION: As meanXmean=ExtremeXextreme 43:57::11:x 43x=57X11 43x=627 x=627/43 x=14.58 HOPE IT HELPS! |
|
| 21254. |
@(52 +22² + (5x-2)?(S8-2²12(S%+232 |
|
Answer» Heyzawukdmfkdknfoskndkdmd |
|
| 21255. |
2x - 32×5 factorise the following |
|
Answer» Answer: 5
Here we can take 2x common. Thus we have 2x−32x 5 =2x(1−16x ) Further it can be written as 2x(1−16x 4 )=2x[1 2 −(4x 2 ) 2 ] =2x(1−4x 2 )(1+4x 2 ) =2x(1+4x 2 )(1−2x)(1+2x) Here we used (a 2 −b 2 )=(a+b)(a−b) Thus factors are 2,x,(1+4x 2 ),(1−2x),(1+2x). Step-by-step EXPLANATION: please mark me brainliest hope it's helpfull |
|
| 21256. |
YOUVADateA company'sGHG emissions increased from 43,000tons to 1,08,000 tons.Calculate the percentageIncrease. |
|
Answer» Answer: 46% Step-by-step EXPLANATION: |
|
| 21257. |
Draw a horizontal number line and locate any two irrational numbers on the number line.Write your observation |
Answer» To represent some irrational numbers on the number line.
Materials RequiredTwo cuboidal wooden stripsThreadNailsHammerTwo photocopies of a scaleA screw with nutGlueCutterPrerequisite KnowledgeConcept of number line.Concept of irrational numbers.Pythagoras theorem.Representation of rational number on number line. TheoryThe concept of number line refer to Activity 1.For concept of irrational numbers refer to Activity 1.For Pythagoras theorem refer to Activity 1.Representation of Irrational Number on Number Line.We KNOW that a real number is either rational or irrational. So, we can say that every real number is represented by a unique point on the number line.Also, every point on the number line represents a unique real number. So, we can locate some of the irrational number of the form √n, where n is a positive integer on the number line by using following steps.Step I – Write the given number (without root) as the sum of the squares of two NATURAL numbers (say a and b, where a > b).Step II – Take the distance equal to these two natural numbers on the number line (a on number line and b vertically) starting from 0 (say OA and AB) in such a way that one is perpendicular to other (say AB ⊥ OA).Step III – Use Pythagoras theorem to find the distance OB.Step IV – Take O as centre and OB as RADIUS, draw an arc, which cut the number line at C (say).Thus, the point C will represent the location of √n on the number line, (see Fig. 2.1)ProcedureMake a straight slit on the top of one of the the wooden strips. Now, fix another wooden strip on the slit perpendicular to the former strip with a screw at the bottom, so that it can move freely along the slit, (see Fig. 2.2)Paste one photocopy of the scale on the horizontal (movable) strip and another photocopy of the scale on the perpendicular strip, (see Fig. 2.2)Fix nails at a distance of 1 unit each, starting from O, on both the strips, (see Fig. 2.2)Now, tie a thread at the nail at 0 on the horizontal strip, (see Fig. 2.2)LAB Manual - Represent Some Irrational Numbers on the Number Line 2DemonstrationWith the help of screw, fix the perpendicular wooden strip at 1, which is 1 unit on horizontal scale.Tie the other end of the thread to unit 1 on the perpendicular strip.Remove the thread from unit 1 on the perpendicular strip and place it on the horizontal strip to represent √2 on the horizontal strip.ΔOAB is a right angled triangle.So, from Pythagoras theorem, OB² = OA² + AB²Here, OA = 1 unit, AB = 1 unit,OB² = (1)² + (1)² => OB² =2 => OB = √2 Similarly, to represent √3, fix the perpendicular wooden strip at √2 and repeat the above process.Thus, we conclude to represent √a, a > 1 fix the perpendicular scale at \sqrt { a-1 } and proceed as above to get √a.Note: To find √a such as √13 by fixing the perpendicular strip at 3 on the horizontal strip and tying the other end of thread at 2 on the vertical strip.ObservationOn actual measurement, we get a -1 = ……….. , √a =…………ResultAny irrational number can be represented on the number line by using this method.ApplicationThis activity may help to student in representing some irrational numbers like √2, √3, √5, √6, √7,…, etc., on the number line.Step-by-step explanation: please mark me brainliest |
|
| 21258. |
P = -4b^2+6b-9 Q = 7b^2-2b-5 P-Q= |
|
Answer» P-Q=(-4b^2+6b-9)-(7b^2-2b-5) =-4b^2-7b^2+6b+2b-9+5 = -11 b^2+8b-4 P-Q= -11 b^2+8b-4 |
|
| 21259. |
Using the given rays. Complete the angle and label them according to the given measures. |
|
Answer» give Step-by-step EXPLANATION: |
|
| 21260. |
If x=-2 then4×x×x×x-4×x×x+7×x+3 |
|
Answer» Step-by-step explanation: 4x^3-4x^2+7x+3 32-16+14+3 USING DMAS RULE first adding 14+3 i.e 17 then FINALLY adding 1 with 32 32+1=33 Thus, the answer comes 33. |
|
| 21261. |
(3x-2) (5x+6) + (x+1)(3x-2)1, Develop and reduce |
|
Answer» Step-by-step EXPLANATION: (3X-2)(5x+6)+(X+1)(3x-2)=45xto the power of 4 ,-14 =(3x)(5x)(x)(3x) =(-2)(6)+(1)(-2) =45×to the power of 4 =-12+-2=-14 |
|
| 21262. |
please tell me that's answer correct |
|
Answer» Answer: => => => Your answer will come in fraction, just SOLVE both FIRST separately, After that during subtraction make the DENOMINATOR common using L.C.F. And then EQUATE the Following If You Got it, Do Mark Me BRAINLIEST. |
|
| 21264. |
The production andconsumption of services may take place at.... |
|
Answer» gfyugyu Step-by-step EXPLANATION: frick IDK |
|
| 21265. |
Find the 12th term of given a.p -1,-4,-7 also find s10 |
|
Answer» Answer: a = -1 ,d = -4+1= -3 n = 12 a12 = -1+(12-1)(-3) -1+11(-3) -1-33 = -34 5(-2-27) 5×(-29) -145 |
|
| 21266. |
3x-1/2=5/2+x find x value |
|
Answer» Answer: x = 2 Step-by-step explanation: 3x - 1/2 = 5/2 + x 2(6x - 1) = 2( 5 + 2x) 12x - 2 = 10 + 2 6x = 12 x = 2 |
|
| 21267. |
46. The profit made by selling 25 m of a cloth equals theselling price of 5 m of that cloth. find the profit percentage?25%2) 20%3) 16 2/3%4) 30%5) NOT |
| Answer» | |
| 21268. |
Anna read 1025 pages of a library book.Jack read 145 less peges than anna.how many pages did jack read? |
|
Answer» Step-by-step explanation: 145-1025 880 will be your answer |
|
| 21269. |
Angles of a right triangle measures 45° is 72°.What is the measure of the third angle |
Answer» PLEASE MARK me as BRAINLEST please Mark me as Brainlest please Mark me as Brainlest please Mark me as Brainlest please Mark me as Brainlest please Mark me as Brainlest please Mark me as Brainlest please Mark me as Brainlest please Mark me as Brainlest please Mark me as Brainlest please Mark me as Brainlest please Mark me as Brainlest please Mark me |
|
| 21270. |
Cube roots of any real number"a" are |
|
Answer» a1/2 is the answer for your question. Step-by-step EXPLANATION: because SQUARE ROOT is EQUALS to 1/2.So,a of square root is equals to a1/2. |
|
| 21271. |
फाइंड स्क्वेयर रूट ऑफ़ 169 |
|
Answer» If my answer HELPS you than PLEASE MARK my answer as BRAINLIEST |
|
| 21272. |
Karim bought 50 dozen of pencil at 60 per dozen he sold 13 per dozen find profit |
| Answer» | |
| 21273. |
(ii) 4x2+5root2x-12 |
|
Answer» Answer: REQUIRED ANSWERStep-by-step explanation: MAYUR Vihar New Delhi 11 April 20xx The Editor Hindustan Times New Delhi Subject: Evoking Awareness Towards Solar Energy Sir Through the columns of your reputed newspaper, I WISH to make the people aware of the growing need and demands of solar power. We all know that our earth is showing signs of a patient in declining health and it is due to excessive POLLUTION on our planet. Man has a desire to live a luxurious life and for that, he is over consuming electricity. He doesn’t realize that overuse would exhaust the treasure. We MUST conserve electricity which is the need of the hour. But this com; rvation can only be done if we start using solar power systems. Various kinds of solar systems like solar cookers, solar lanterns, solar heating and cooking system, solar water heater, etc., are available in the market. These solar systems are non-polluting. They are economical and are available in different sizes. So, I request you to publish this letter in your newspaper to make people aware of the need of conserving electricity and limiting electricity bills. PUBLIC must pay attention to the dire need of switching over to solar energy. Thanking you. Yours sincerely Divyansh PLSS FO LLO W ME |
|
| 21274. |
√3 x² + 10x + 7√3=0 solve the following quadratic equations |
Answer» hope it was HELPFUL to you ❣️☺️mark me BRAINLIST ☺️☺️ |
|
| 21276. |
Yaar please isa divide karo please 3/450 |
|
Answer» Answer: 150 Step-by-step EXPLANATION: |
|
| 21277. |
Q.1 If the perimeter of each face of a cube is 32 cm, find the lateral surface 1 pointarea. 256 cm.saO 202 cm.sa221 cm.sa100 cm.sa |
|
Answer» Let, a → Side of the cube. Perimeter of each face is 32 cm. = 4 × 82 = 256 cm2 So the lateral surface area of the cube is 256 cm2 . Step-by-step explanation: |
|
| 21278. |
Y = x- 2 and y = 3x + 5 |
|
Answer» y=x-2 and y=3x+5 Step-by-step EXPLANATION: x-2=3x+5 -2-5=3x-x -7=2x x= -7/2 = -3.5 |
|
| 21279. |
Please Ans This Question. but if you didn't know the ans so please didn't come to my question {Understand} |
|
Answer» where is the UNDERLINED DIGITS |
|
| 21280. |
D(a,b)=10 d(b,c) =3 d(a,c)=?Also find which of the point is between The other two |
|
Answer» xyi5soyoyf6r yditf7 hdkyc Step-by-step EXPLANATION: ite6of7pbv58rouf kgd85eoydyd |
|
| 21281. |
Which of the following is the reciprocal of the reciprocal of a rational number? * |
|
Answer» Answer: 1 and -1 are the only rational numbers which are their own reciprocals. No other rational number is its own reciprocal. We know that there is no rational number which when multiplied with 0, gives 1. Therefore, rational number 0 has no reciprocal or multiplicative inverse. Step-by-step explanation: PLEASE give thanks to all my ANSWERS and please mark as brilliant and please foll me |
|
| 21282. |
Find the zeroes of p(x)=X^2-15 and find the relation between zeroes and coefficient |
|
Answer» <P>Answer √15 Step-by-step EXPLANATION: We have p(X)= x²-15 so, x²-15=0 x²= 15 x= √15 so, √15 is the ZERO of p(x) |
|
| 21284. |
Distance between two places A and B is 50m 50cm, if ram travelled those two places in two times, what is the total distance covered by him. |
|
Answer» Answer: The distance between two places A and B is 60 KM. Two cars start at the same time from A and B, travelling at a speed of 35 km/h and 25 km/ h respectively. If the cars run in the same direction, they will meet after (in hours) A) 6.5 B) 6.3 C) 6 D) 6.52 Correct Answer: C) 6 Description for Correct answer: relative speed for same direction = (35−25) km/hr = 10 km/hr time taken when they meet =6010=6 hour |
|
| 21285. |
6. Simplify:(i) (-8)9+(-8)x7(iii) 20 x(-16) +20x14(v) (-11)x(-15)+(-11)X(-25)(vil) (-16) (-8) + (-4) (-8)(ii) 9x(13)+9x(-7)(iv) (-16) (-15)+(-16) (-5)(vi) 10X(-12)+5X(-12)(viii) (-26)x72+(-26)x 28 (iv) (-16)X(-15)+(-16)(-5)(vi) 10X(-12)+5X(-12)(viii) (-26) x 72 +(-26)* 28 |
|
Answer» this the answer for your question .. Step-by-step EXPLANATION: and this question is important pleasee MAKE this answer |
|
| 21286. |
The 21term of an AP ,whose first two terms are 3and -3 is |
|
Answer» Step-by-step explanation: a=3 ,a1=-3 so diffrence=6 n=21 we KNOW that TN= a+(n-1)d t21=3+(21-1)6 t21= 123 so 21th TERM is 123 |
|
| 21287. |
What is the place value of 2 in 924.35?k |
| Answer» | |
| 21288. |
24. Finda) (-7) -- 8 -- (-25)b) (-13) + 32 -8 - 1c) (-7) + (-8) + (-90)d) 50 - (-40) - (-2) |
|
Answer» Step-by-step EXPLANATION: formulae is REQUIRED |
|
| 21289. |
a square shape all message 24 m each side. if it is to be tiled with tiles each measuring system on each side find how many tiles are needed |
| Answer» | |
| 21290. |
James is n years old, his son's age is 9 years less than half of his age . how old is his son |
| Answer» | |
| 21291. |
Lo(16)" leto ξ(1.)" (edo Exiist1అLiaccording to NP lemma theorem what is exponential population distribution |
| Answer» | |
| 21292. |
3 .3 Find the combined equation of pair of line passingthrough the origin and one of the line which is perpendicular to the 5x-3y-1=0 and other is parallel to the line 9x+3y-1=0ل |
|
Answer» Editos Usman Step-by-step EXPLANATION: |
|
| 21293. |
A sample of size n is drawn from each of the fournormal populations which have the same variance sigma^2 . The means of the four populations are a+b + c , a +b - c , a - b + c and a - b - c . What are M.L.E.’s for a, b, c and sigma^2 ? |
|
Answer» imagine that you are a YOUNG parent who is disturbed at the way toddler are burdened with examination and HOMEWORK write a letter to the EDITOR of a local daily expressing your concern |
|
| 21294. |
Solve for all parametric solutions of a, which result in the below system of equations to have exactly 3 solutions.{ x(x² + y² + y - x - 2) = |x|(x² + y² - y + x) { y = a(x + 2) |
|
Answer» Answer: Nutrition is the biochemical and physiological process by which an organism uses food to SUPPORT its life. It includes ingestion, absorption, assimilation, biosynthesis, CATABOLISM and excretion. The SCIENCE that studies the physiological process of nutrition is called NUTRITIONAL science. Step-by-step explanation: plz make me BRAINLIEST |
|
| 21295. |
Who r uuuuuuuuuuuuuu |
|
Answer» Dimag khane aur kharab KRNE VALE bande You all can DELETE my all answers LEAVING brainly soon |
|
| 21296. |
Sum of Rs, 2,000 is deposited in a bank which pays compoundinterest for the first year at r % per annum and for the second year at5% per annum. If the maturity amount at the end of second year isRs. 2,163, find the value of r. |
| Answer» | |
| 21297. |
968 ansh5 rishu 11 पॉइंट प्रेजेंटेशन |
|
Answer» PLS WRITE the question correctly,CLEARLY and ASK the question what answer you need. |
|
| 21298. |
Laplace transformation of t^3 e^-2t |
|
Answer» Answer: SCIENCE is the pursuit and application of knowledge and understanding of the natural and SOCIAL WORLD following a systematic methodology based on evidence. ... Evidence. Experiment and/or OBSERVATION as benchmarks for testing hypotheses. |
|
| 21299. |
18. The ratio of the incomes of A and B is 4 : 3.The ratio of the savings of A and B is 5 : 6. Find theratio of the expenditures of A and B, if A spendsthree-fourth of his income.(A) 3:2(B) 5:3(C) 3:5(D) 2:3 |
|
Answer» Answer: 5:3 cuteee friend☺ |
|
| 21300. |
How to write 2754629 International digit |
|
Answer» Answer: 2,754,629 we will WRITE LIKE this in INTERNATIONAL DIGIT in MILLION |
|