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| 69751. |
(x^2 - 14*x %2B 49)/(x^2 - 49)=3/17 |
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| 69752. |
49. If 2256 then the value ox is(1) 14(3) 18(2) 16(4) 20 |
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Answer» √2^x= 256 2^X/2= 256 = 28 X/2 = 8 X = 16 |
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| 69753. |
. There are 1500 studentsin a school, out of which 600 are girls. What is the ratio ot numberof boys to the number of girls? |
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Answer» thanku very much total boyas = 1500-600=900 ratio=900/600 |
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| 69754. |
e:--Mahesh sold two cell phones at9900 each. On one he gained 10% and on the other he lost 10%. Finda. the cost price of each cell phoneb. the total profit or loss in the whole transactionc, his total profit or loss % |
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Answer» Selling price of two mobile =9900one phone got 10%profit so selling price=110/100 of X =11x/10others lost 10%percent so selling price=90/100of X=9x/10 according to question,11x/10+9x/10=990020x/10=99002x=9900X=9900÷2X=4950selling price of one phone =11×4950/10=11×495selling price of other=9×4950/10=9×495Find the sum of this two and then if 9900 is greater means loss and smaller means profit |
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| 69755. |
equations to denote the quantitiesin the pans. Solve to find the value of theunknown quanfityA.B. |
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| 69756. |
ack to Videosof 3< Previous QuestionNexHigh School surveved its student population about if they prefer pizza or sushi. The students who prefer pizza reeer students than five times the number of students who preler sushi. If 1,528 students prefer plzza, how many studstudents |
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Answer» noun. the act of preceding or the condition of beingprecedent. the ceremonial order or priority to be observed by persons of different stations on formal occasions the officersareseated according toprecedence. a right to preferential treatment Itake precedenceover you. |
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| 69757. |
Wirite equations to denote the quanfifies2.in the pans. Solve to find the value of theunknown quantity.A.B.3215 3 |
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Answer» A: Equation: 2 + x =8 Solution: x =8-2 =6 B: Equation: 4+2x =16 Solution: 2x =16-4 =>2x =12=> x =6 |
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| 69758. |
is as follows:la abich tw I I.umber of students who prefer to use pen or pencil to take down notes in five different classesPreferenceVI VII VIII IX X XINo. of students who prefer pen 150 100 75 50 75 25No. of students who prefer pencil 50 100 125 150 125 175Using the above data, draw a line graph. |
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| 69759. |
5. If the zeroes of the polynomial x3-3x2 + x + 1 are in A.P (i.e., a-d, a and a + d) then find thenature of a +d |
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Answer» X³-3x²+x+1The zeroes of the polynomial are (a+d),a, (a-bd) Let α=a-dβ=aγ=a+d α+β+γ=-x² coefficient/x³ coefficient a-d+a+a+d=-3/13a=-3a=-3/3a= -1 αβγ= -constant/x³ coefficient (a-d)(a)(a+d)=-1/1(a²-d²)(a)= -1[(-1)²-d²](-1)=-1(1-d²)= -1/-11-d²=11-1=d²d²=0d=√0=0Therefore, a=-1 and d=0 Like my answer if you find it useful! |
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| 69760. |
\begin { equation } \cos ^{\wedge} 2 x+\sin ^{\wedge} 2 x=? \end { equation } |
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Answer» cos^2x+ sin^2x is 1as it is a theorem in trignometry |
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| 69761. |
J5.Find the general solution of the equationcos x + cos 2x + cos 3x = 0. |
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Answer» Cosx + cos2x + cos3x = 0 like cosx + cos3x + cos2x = 0. 2cos(x + 3x)/2. cos(3x - x)/2 + cos2x = 0 [ from cosC + cosD = 2cos(C + D)/2.cos(C - D)/2] 2cos2x.cosx + cos2x = 0 cos2x(2cosx + 1) = 0 cos2x = 0, cosx = -1/2 when cos2x = 0 = cosπ/2 2x = 2nπ ± π/2 , where n is integers x = nπ ± π/4 if n = 0, x = ± π/4 , but so, x = π/4 if n = 1 , x = π ± π/4, x = 5π/4 , 3π/4 but x ≠ 5π/4hence, x = π/4 and 3π/4 from cos2x = 0 when cosx = -1/2 = cos2π/3x = 2nπ ± 2π/3forX in 0 to πonly x = 2π/3 is solution hence, there are three solutions .e.g., x = π/4, 3π/4 and 2π/3 |
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| 69762. |
Solve the equation :Σsin(ix)Σcos(x) |
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Answer» can the answer be tan inverse 1/2? |
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| 69763. |
find the prime factor of 7429 |
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Answer» Prime factorisation of 74297429 = 17×19×23 |
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| 69764. |
find the prime factor of 78. |
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Answer» Prime factorization:78= 2 x 3 x 13. Prime factors of 78 are2, 3 , 13 |
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| 69765. |
x^5/1/(x^(-3))=49 |
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Answer» x^5 × x^3=49 ; x^15=7^2; x=7; x^5 ÷ x^3 = 49x^2 = 49when we do SQRTx = 7 |
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| 69766. |
(3)50days(4)10daysMahesh invested an amount of 12050 atsimple interest. He got an amount of13496 at the end of 2 yr. At what rate ofinterest did he invest? |
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Answer» INTEREST = AMOUNT - PRINCIPAL= 13496 - 12050= Rs. 1446 INTEREST = PRT/100=> (1446*100)/ ( 12050*2) = R=> R = 6 % PLEASE HIT THE LIKE BUTTON |
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| 69767. |
ablc in decimal fom.Hundredths ThousandithsWrite the numbers given in the following place valtue table in decimal form.Hundreds l_Tenslones | Tenths . Hun100101001000 |
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| 69768. |
1. निम्नलिखित सारणिक का मान ज्ञात कीजिए।2000 2001 20022003 2004 20052006 2007 2008 |
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Answer» r1,r2,r3=0 is the right answer 0 is the correct answer the correct answer is 0 0 is the right answer hai 0 answer is right answer 0 is the correct answer 0 is the correct answer |
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| 69769. |
23. Out ot 100 students, two sections of 40 and 60are formed, Ifyou and your friend are among the 100 students what is theprobability that(a) You both enter the same section?(b) You both enter the different section? |
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| 69770. |
Lake Sider High School surveyed its student population about if they prefer pleza or sushi. The students who prefer puzza represent twentyvertewer students than five times the number of students who prefer sushi. 158 students prefer plazo, how many students prefer |
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Answer» Snyder High School is an above average, public school located in Snyder, OK. It has 125 students in grades 9-12 with a student-teacher ratio of 12 to 1. According to state test scores, 90% of students are at least proficient in math and 75% in reading. |
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| 69771. |
Q.9. Find the value of k so that (x-Dis a factor of the polynomial 5 x3 + 4 x2-6 x + 2 k. |
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| 69772. |
(5) A car travelling at a uniform speed covers a distance of 165 km inthat same speed, (a) How long will it take to cover a distance of 330 kn9(b) How far will it travel in 8 hours? |
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Answer» six hours travelling time |
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| 69773. |
write in prime factor 27 |
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Answer» Factors of 27: 1, 3, 9, 27. Prime factorization: 27 = 3 x 3 x 3, which can also be written 27 = 3³. |
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| 69774. |
2- What vaue for X would make the triangles similar?7in6 in21. in - |
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Answer» Similar triangles have an equal ratio of sides.6/x = 7/21 x = 18 in |
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| 69775. |
5.If sin (x-20)" = cos (3x-10)", then find the value of x. |
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Answer» sin(x-20)=cos(3x-10);sin(90-(70-x))=cos(3x-10);cos(70-x)=cos(3x-10);70-x=3x-10;4x=80;x=20 |
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| 69776. |
The nurnber of integeral solution of k for which the equation 7 cos x + 5 sin x = 2 k + l has a solution is(a) 4(b) 8(c) 10(d) 12 |
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Answer» Maxinmum value of 7cosx+5sinx=√(7^2+5^2)=√74=8.6 and minimum value is -8.6 so it will vary between -8.6 to 8.6 2k+1 is an odd integer. between -8.6 to 8.6 odd integers are -7,-5,-3,-1,1,3,5,7 and corresponding values of k will be -4,-3,-2,-1,0,1,2,3 hence there are 8 values of k |
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| 69777. |
49^(5/2) |
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| 69778. |
cm,findtheare in the ratio 5: 2.If its perimeter ishun rontonglo narallelonram and also write their proper492.Two sides of a parallelogramlengths of its sides. |
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Answer» Let X be the common multipleHence sides will be 5x and 2xPerimeter of parallelogram=2(l+b)=2(5x+2x)=49=2*7x=49x=7/2cmHence5x=5*7/2=35/2cm2x=2*7/2=7cm |
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| 69779. |
farmerbuys a used tractor for R 180000. He pays 90000 in cash andagrees to pay the balance in annual instalments or 9000 plus 12% interestaid amount. How much did the tractor cost him? |
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| 69780. |
Use the distributive property tofactor the expression.7x 28 [?](x ])Enterpyright 2003-2018 Acellus |
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Answer» 7x + 28 = 7(x + 4) |
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| 69781. |
moswho ale more!In his will, Ravi left of his wealth to his son, to his daughter and the remaining to his wifeWho received the largest share and who received the least share!that are high school graduategar |
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Answer» daughter received largestwife received least daughter received largestwife received least |
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| 69782. |
1 शक 228.1Beuis e OAX 7 12 ‘2 U0t PiejinSinE‘OX 1ok 2 12eUE bidie कि छह lLaB 24mzmrdfi-.pg{&)\xmtgaw ZAX |
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| 69783. |
7In parallelogram KLMNKN 599 cmKL -8.2 cmh # 5.7 cm |
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Answer» complete question please find the area |
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| 69784. |
What is the greatest prime factor of234 228?(A) 2(C) 5(B) 3(D) 7 |
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Answer» (2^34)-(2^28)2^28[2^6-1]2^28[64-1]2^28(63)2^28(7)(3)(3) So greatest prime factor is 7 Option D is correct |
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| 69785. |
UUUU2. Using Euclid division algorithm, find HCF of 255, 1309 and 1326 |
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Answer» 17 is the hcf of the given question |
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| 69786. |
(b) 240(c) 360a 300(d) 320r 10t? 28 10.2012) |
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Answer» 36 किमी / घन्टा = 36×1000/3600 = 10 मी/सेकंड 32 सेकंड में दूरी = 10×32 = 320 मिटर If you find this answer helpful then like it. |
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| 69787. |
The cost of 1 Litore is 5 49 2. Whatof milk?to the cost of 10t liters |
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| 69788. |
Aman's annual income in 1999 was Rs 90000; in 2002 it was increased by20%. What was his income in 2002 ? |
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Answer» Income in year 1999 = Rs 90000 Income in year 2002 =90000(1 + 20/100)=90000(1 + 1/5)=90000(6/5)=18000*6= Rs 108000 |
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| 69789. |
Evaluate. ©(2002)(b) (199)(6) (59813 |
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Answer» (a) 1002×1002×1002=1006012008,(b) 999×999+999=997002999,(c) 598×598×598=213847192, Answer |
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| 69790. |
5. The population of Bhopal was 2,45,89,212 inthe year 2003. In the year 2002 it decreasedby 32,78,000. What was the total populationof the city in 2002? |
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Answer» The population in 2002 is 2,13,11,212 21311212 is right answer of this question |
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| 69791. |
Lontool(19.) The annual increase in population of a city is 10%. The annual increase in population from 2002 to 2003 is10030. What was the population of the city in 2002? |
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Answer» Let the population in 2002 be xatq10%ofx=1003010÷100×x=10030x÷10=10030x=10030×10100300so population in 2002=100300 |
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| 69792. |
31. A man row downstream at 12 km/h and upstream at | 31, एक आदमी भी8 km/h. What is the speed of man in still water? विपरीत दिशा मेंपानी में आदमी(A) 12 km/h(B) 10 km/h(A) 12 kin/h(C) 8 km/h(D) 9 km/h(C) 8 km/h2 Fauation 2 + y2 =is2- समीकरण ४ |
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Answer» Answer:b) 10km/hr Explanation |
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| 69793. |
[ S.S.C. Graduate Level 2002] |
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Answer» 4will be on top 4 is the answer 4 is the answer for this |
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| 69794. |
2-8.Examine the function h(t) defined at right.Then estimate the values belowa. h1)b. h(3)c. x when h(r) 0d. h(-1)e. h(-4)12ot h(x)63.a-3h(x) |
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Answer» from the graph h(1) = 2.h(3) = -3when h(x) = 0. the values of x are = -2,0,2h(-1) = -2h(-4) = 12 |
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| 69795. |
and retun u s hours, usthe boat ne & wafea and the2i kn u shream astream |
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Answer» 1/6 = 1/x - y x - y = 6 ----------- (3) next partt thanks |
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| 69796. |
इकार्फद्नणकक 228 कट कर कुक 20 O B | ki |
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Answer» 2 ≤ 3x - 4 ≤ 5 Add 4 6 ≤ 3x ≤ 9 Divide by 3 2 ≤ x ≤ 3 |
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| 69797. |
230 +229+ 228 731230-229 10Prove that: |
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Answer» Thank you so much |
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| 69798. |
1.Using Euclid's algorithm, find H.C.F of 240 and 228. |
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| 69799. |
9.Reena took a loan of Rs, 1200 with simpleinterest for as many years as the rate ofinterest. If she paid Rs. 432 as interest at theend of the loan period, what was the rate ofinterest? |
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| 69800. |
CUO CUUN*Ata certain rate of interest, the interestafter 4 gears on 5000 rupees principals 1200 rupees. What would be theinterest on 15000 rupees at the samerate of interest for the same period?inP- |
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Answer» Principal p = Rs 5000 time period t = 4 years interest I = Rs 1200 let, interest rate = r Formula= I= p*r*t putting values in above: 1200 = 5000*r*4 r = 1200/20000 r = 0.06 or 6% NOW we have to find I=interest as i = p*r*t so interest = 1500*0.06*4 interest = Rs 360 |
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