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| 68501. |
16. Find the side of the parallelogram whose area is 170.5 cm2 and the corresponding altitudeis 7.75 cm. |
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| 68502. |
Find the height of a parallelogram whose area is 4em ad base is 15 cmABCD is a parallelogram BE ls the helght from B to DC and BF is the height |
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| 68503. |
a) 2+ { +1(b)12-3+1(c) 2+ 3 - 1+(d) 7-34-27+2w+1+1cola4+22-510 |
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Answer» waw gred very nice good your prssnn |
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| 68504. |
7. Let A = 13, 5) and B=17, 11). Let R-|(a, b) : a EA,bEB,α-bis odd ). Show that R is anempty relation from A into B |
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| 68505. |
2 \sqrt { 2 } a ^ { 3 } + 8 b ^ { 3 } - 27 c ^ { 3 } + 18 \sqrt { 2 } a b c |
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| 68506. |
Values of the letters in ea3 A+2 5=B 2 |
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Answer» put A = 7 3 7 + 2 5 -------------- 6 2 |
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| 68507. |
11x+15Y=-237x-2Y=20 |
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| 68508. |
11x+15y+23=0,7x+2y-20=0 calculate the value of x and y ? |
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Answer» 11x + 15y = - 23....(1)7x + 2y = 20..........(2) Multiply eq(1) by 7 and eq(2) by 11 77x + 105y = - 161.....(3)77x + 22y = 220.........(4) Subtract eq(4) from eq(3)83y = - 381y = - 381/83 Put value of y in eq(2)7x + 2*(-381)/83 = 207x = 20 + 762/837x = (1660 + 762)/837x = (2422)/83x = 346/83 |
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| 68509. |
lines /, and /,Q.10 Two consecutive sides of a parallelogram are 4x+5y o& 7x +2y .If the equation to one diagonalis 11x+7y-9, find the equation to the other diagonal. |
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| 68510. |
24. Find the value of m ir (5,8)is a solution of the equation 11x-2y-3m, then find three solutions of this equation. |
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| 68511. |
C"C,, find "C |
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| 68512. |
1. Find each of the followingi) (x + 6) (x 6 |
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| 68513. |
7 ABCD is a parallelogram.AC is its diagonal. Prove that AC dividesparallelogram ABCD into two congruent triangles. |
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Answer» In triangle ADC and ABC AB = DC AD = BC AC = AC by SSS rule ∆ADC is congurent to ∆ABC |
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| 68514. |
In a parallelogram ABCD, adjacent sides are in the ratio of 2: 5 and its perimeter is 56 m. Find the lengths of the sides of the parallelogram ABCD |
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| 68515. |
SECTION Aİlia snd n-are aerus of the polyu0miał ar-6x + c, find the values of a and e ifial as-x c, find the values of a and e'if |
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Answer» m and n are zeroes of ax^2 - 5x + cGiven,m + n = 10 = mn We know, Sum of zeroes = 5/a10 = 5/aa = 5/10 = 1/2 Product of zeroes = c/a10 = c/ac = 10*1/2c = 5 |
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| 68516. |
Long AABCD is a parallelogram. E is a point on BA such that BE 2EA and F is a point on DCuch that DF 2FC. Prove that AECF is a parallelogram whose area is one-third ofparallelogram ABCD |
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| 68517. |
es til 8816.).The price of a shirt is reduced by 12% in a discount sale. If its present pric.ts origtnal price. |
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| 68518. |
If "C "C,, find "C2?2" |
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Answer» n= r+shere r is 8 and s is 2n=8+2=10 |
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| 68519. |
If "C "C, find 'C272' |
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| 68520. |
e \/â\\/_\224. Ja+ib+a-ib = y2(NaÂŽ +b? & a) |
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| 68521. |
a+ ibc + ida2+ bx2+ y2c2 + d2() a-ibc- id |
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| 68522. |
Find the sum to n terms of the A.P., whose kth term is 5k +1. |
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| 68523. |
7, Find the sum to n terms of the A.P, whose kth term is 5k +1. |
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| 68524. |
7. Find the sum to n terms of the A.P., whose kth term is Sk+ 1. |
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| 68525. |
2.Subtract -5(xy-y) from 2y(-11x+7) |
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Answer» 2y(-11x + 7) - (-5(xy - y) = - 22xy + 14y + 5xy - 5y = - 17xy + 9y = 9y - 17xy |
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| 68526. |
State the exponential form of each expression - 6 x - 6 x - 6 x - 6 |
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Answer» by basic multiplication(-6)^4=6^4=36^2=1296 |
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| 68527. |
1. Find the value of:(i) 292. Express the following(i) 6 x 6 x 6 x 6 |
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Answer» 2^6= 2*2*2*2*2*2= 64 (1)= 2x2x2x2x2x2=64 (2)=6^4hope this will help you like my answer and MARK IT as expert answer 2*2*2*2*2*2=642raised to power 6 means we will multiply 2 six times 2^6=2×2×2×2×2×2=64 correct answer. 2^6=2×2×2×2×2×2=64Answer 2×2×2×2×2×2=64 so 2 to the power of 6 is64 (2)^664 is correct answer 64 is answer okkkkkk value of 2 will be 64 1.(i) 2*2*2*2*2*2 is my answer =2*2*2*2*2*2*=64 ok ok ok 64 is the best answer 2*2*2*2*2*2* 64 ok answer |
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| 68528. |
\int \frac { x + \operatorname { cos } 6 x } { 3 x ^ { 2 } + \operatorname { sin } 6 x } d x |
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| 68529. |
The sum of three consecutive multiples of 3 is 72. Find the numbers |
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Answer» Let the numbers be 3x, 3x + 3 and 3x + 6.Then,3x + (3x + 3) + (3x + 6) = 729x = 63x = 7Largest number = 3x + 6 = 27. => Second largest number = 27 - 3 = 24 thanks |
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| 68530. |
7. The sum of three consecutive multiples of 8 is 888. Find the muluples |
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| 68531. |
mum during the second yearyear and at 20%Thrvalur of a machine depreciates at the rate of 10%per annum. It was purchased3yngowhat wubesots present value ts 291600 for how much was it purchased |
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| 68532. |
construct a parallelogram ABCD in which AB = 45 cm, BC = 52 and AC-64 cm. |
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| 68533. |
।२५ । । । ।। । । । ।।।।।। ।। ।।।।।। 1।।- ।। ।।। ।YA1, नाउ कक्षा के 5 धार्मियों के रक्षा समूह ये है:4. 1, 10, 11, 13, 1 21, 2, E. A, 3, E, 3, 1 ।।।, AB (14, 4, , , E, F, 3 ) B, A, G. ]| | ।। ।। || बारम् ।। | सारण के रूप में प्रत काजिए।।।। | ।। || कौन सा का मह कि गागन्य है औरन मा न समूह जितन क राह है? [KGEET EXERCISE' । |
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Answer» your answer is O=12A=8AB=3B=6total number is 30 your answer is 0=12A=8AB=3B=6total number is 30 |
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| 68534. |
ample The perimeter of a rectangle is64 cm. If its length is 17 cm, what is itsbreadth? |
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Answer» Perimeter = 2( length+breadth)64/2= 17 + breadth32-17= breadth15 cm= breadthPlease like the solution 👍 ✔️👍 |
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| 68535. |
ts even |
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Answer» A= {1, 2, 3, 4, 5} R = { (a,b) ; |a – b| is even} It is clear that for any elementa∈A, we have |a -a| = 0(which is even). ∴R is reflexive. Let (a,b) ∈ R. => |a –b| is even. => |- (a –b)| = |b - a| is also even. => (b, a) ∈ R is even. A= {1, 2, 3, 4, 5} R = { (a, b) : | a – b| is even} It is clear that for any elementa∈A, we have |a - a | = 0(which is even). ∴R is reflexive. Let (a,b) ∈ R. ⇒|a –b| is even. ⇒|- (a –b)| = |b - a| is also even. ⇒(b, a) ∈ R is even. ∴R is symmetric. Now, let (a,b) ∈ R and (b,c) ∈ R. ⇒ |a –b| is even and |(b –c)| is even. ⇒ (a – b) is even and (b –c ) is even. ⇒ (a –c ) = (a – b) + (b – c ) is even. [ Sum of two even integers is even] ⇒ |a – c | is even. ⇒ (a,c) ∈ R ∴R is transitive. Hence, R is an equivalence relation. Now, all elements of the set {1, 3, 5} are related to each other as all the elements of this subset are odd. Thus, the modulus of the difference between any two elements will be even. Similarly, all elements of the set {2, 4} are related to each other as all the elements of this subset are even. Also, no element of the subset {1, 3, 5} can be related to any element of {2, 4} as all elements of {1, 3, 5} are odd and all elements of {2, 4} are even. Thus, the modulus of the difference between the two elements (from each of these two subsets) will not be even. |
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| 68536. |
EXERCISE 7.4f" = "C,, find "C.no |
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Answer» GIVEN nc8= nc2 if ncr= ncpthen either r=p or r= n- p thus,nc8= nc2 8= n-2 8+2= n 10= ncalculating ,nc2 put n = 10 10 c2= 10/2(10-2) :::::::::::::::::::::::::::::::::::::→ncr = n / r( n- r)←::::::::::::::::::::::::::::::::::::: GIVEN nc8= nc2 if NCR= ncPthen either r=p or r= n- p thus,nc8= nc2 8= n-2 8+2= n 10= ncalculating ,nc2 put n = 10 10 C2= 10/2(10-2) :::::::::::::::::::::::::::::::::::::→NCR = n / r( n- r)←::::::::::::::::::::::::::::::::::::: |
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| 68537. |
trom a metal sheet. How nialty s,A metal pipe is 77 em long. The inner diameter of a crosssection is 4 em, the outer diameter being 4.4 cmR 13.1). Find is. inner curved surface area,) dater curved sarlice aeu.13.4 SuSo far, wsuch figuprism (Tc toval sarfaco areathem.ActivitFig.13 string al |
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| 68538. |
Exercise IBFind the product(0) 11 x 6 |
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Answer» The product of 11 and 6 is 66 |
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| 68539. |
required to make a closed cylindrical tank of height I m aid Batea metal sheet. How many square metres of the sheet are required for theuiameler 140same |
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| 68540. |
w the following on number lines7/6ii) 5/2 |
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| 68541. |
TUDFind the sum to n terms of the A.P., whose kth term is 5k +1 |
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Answer» answer already given below |
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| 68542. |
03.5 cm74.Find the perimeter of the shaded region in the figureC 14 cm DA 14 cm BY/14 cm |
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| 68543. |
1 ,2Subtract the Hum of 61, 35 and 416 from the Burn of 25 and 14167 |
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| 68544. |
\left. \begin{array} { l } { 2 x ^ { 2 } - 3 x + 5 = 0 } \\ { 2 x ^ { 2 } - 6 x + 3 = 0 } \end{array} \right. |
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| 68545. |
\left. \begin{array} { l } { 3 x ^ { 2 } y - 2 x y + 2 x y ^ { 2 } + 5 x - 7 y - 10 \text { fi } } \\ { 15 - 2 x + 5 y - 11 x y + 2 x y ^ { 2 } + 8 x ^ { 2 } y } \end{array} \right. |
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Answer» 15-2x+5y-11xy+2xy^2+8x^2y-(3x^2y-2xy+2xy^2+5x-7y-10)=15-2x+5y-11xy+2xy^2+8x^2y-3x^2y+2xy-2xy^2-5x+7y+10=25-7x+12y+5x^2y |
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| 68546. |
oca denmltion does she have6. The sum of three consecutive multiples of 11 is 363. Find these multiples.7. The sum of three consecutive multiples of 8 is 888. Find the multiples. |
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Answer» 6) suppose numbers are 11(x-1),11x,11(x+1)so 11x-11+11x+11x+11=363so 33x=363 so x=11so numbers are 0,121,1327) suppose numbers are 8(x-1),8x,8(x+1)so 8x-8+8x+8x+8=888so 24x=888so x=37so numbers are 288,296,304 |
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| 68547. |
6x+4x=10 then x=? |
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Answer» x=1 is right answer......... x=1 check: 6*1+4*1=10=6+4=10 |
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| 68548. |
triangle is 48 cm its base is 12 cm. Find the length of its correspondingThe area of aaltitudelelogram is 64 cm, base is 12 cm, find the altitude of the |
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Answer» tq |
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| 68549. |
find the equation?4x+10=50 |
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Answer» 4x + 10 = 504x = 50 - 104x = 40x = 40/4x = 10 |
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| 68550. |
1. A metal sheet 27 cm long, 8 cm broad and 1 cmthick is melted into a cube. What is the differencebetween surface areas of two solids? |
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