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75451.

LSDae te

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75452.

f te

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75453.

Two boxers Maddy and Mac participated in a boxing match. In the final minute of the game, Maddyhit Mac with a thunderous punch on his head. After this Mac was unable to stand properly and keephis balance. Which part of Mac's brain do you think was affected the most?3.Ka) Cerebellum(b) Medulla(c) Cerebrumd) Thalamus

Answer»

The cerebellum is at the back of thebrain, below the cerebrum. It's a lot smaller than the cerebrum at only 1/8 of its size. But it's a very importantpartof thebrain. It controlsbalance, movement, and coordination (how your muscles work together).

so option a is correct.

75454.

4 A right circular cone is 8 cm high and the radius of its base is 2 cm. The cone ismeltedandra sphere. Determine the diameter of the sphere.of lad whose edge measures 44cm

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Height of cone, h = 8 cmRadius of cone, r = 2 cmLet radius of sphere be “R” cmSince cone is melted and made into a sphereVolume of sphere = Volume of cone(4/3)πR3= (1/3)πr2hThat is, 4R3= r2h4R3= (2)2x 8R3= 8 = 23Therefore, R = 2Thus diameter of sphere is 4 cm.

75455.

A right circular cone is 5.4 cm high andradius of its base is 2 cm. It is melted andrecast into another right circular cone withradius of base as 1.5 cm. Find the height ofthe new cone formed.ie 01

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H=5.4 cm. (first cone)

R=2cm,

Second cone only given radius = 1.5cm

So, the volume of first cone=the volume of recast melted cone

1/3πr*2h = 1/3πr*2h

1/3 is cut out by 1/3 (cross multiply)

π is cut out by π (cross multiply)

R-2×2 × H-5.4 = R-1.5×1.5×h

5.4×4 =1.5×1.5×h

21.6/1.5=1.5×h

14.4=1.5×h

14.4/1.5=h

h = 9.6

Like my answer if you find it useful!

volume of first cone must be equal to vol of 2nd coneH is 9.6cm

75456.

(ii) 4pq3r2-10p2q2r+5pq4 by -par

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=-4q^2r+10pq^2+5q^3r^(-1)

75457.

2 ^ 5 x %2B 4 %2B 2 ^ 9 = 2 ^ 10

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2^(5x+4)+2^9=2^102^(5x+4+9)-2^10=02^5x-508=02^5x=508x=508/1x=508

75458.

4 cm. Find its height.Which triangle has a greater area? Exp7.5 ml6 m8.5 m6.6 m

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1st tringle :area of tringle - 1/2*base * height

base = 8.5 mheight =6m area = 1/2* 8.5*6 =25.5

2nd tringle = base = 6.6 height = 7.5 area = 1/2*6.6*7.5=24.75

2nd tringles area is greater

75459.

17. Which triangle has a greater area? Explain. A7.5 m6 m8.5 m6.6 m

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75460.

1. A joker's cap is in the form of rightcircular cone whose base radius is7 cm and height is 24 cm. Find the areaof the sheet required to make 10 such(AS4caps.

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75461.

4. a. On a graph paper, plot the pointsP(4,0), QO, 4), R(-4, 0) and S(0,4).

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75462.

Mukesh. Yadav

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it's whatit's what what it's what is

what is the question

75463.

(-13)/9 %2B 7/9 %2B 2/((-9))

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-13/9+7/9+2/-9=(13/9-2/9)+7/9=-15/9+7/9=-8/9 is the correct answer

-8/9 is the correct answer of the given question

-8/9 is the correct answer

-8/9 is the correct answer

75464.

ind the commonNCERT)ample2. 1 the sum ofn terms ofan А.Đ.is (pn+qn)where pand q are constantciridifference

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Given ,Sn=pn +qn^2

we know ,Tn =Sn - S(n-1)

where Tn is nth term of AP so,Tn = pn+qn^2- q(n-1)^2-p(n-1) = q(n^2-n^2+2n-1)+p (n-n+1)= q(2n-1)+phence ,Tn = q(2n-1)+p

put n=1, T1 = q+pn=2, T2 = 3q +p

common difference =T2-T1 = 3q+p-q-p = 2qhence ,common difference =2q

75465.

-b*c %2B a*(b*x^2) %2B x*(-a*c %2B b^2)=0

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abx^2 + (b^2 - ac)x - bc = 0abx^2 - acx + b^2x - bc = 0ax(bx - c) + b(bx - c) = 0(ax +b)(bx - c) = 0x = - b/a, c/b

75466.

128 m. Find the area of the parkTwo plots of land have the same perimeter. One is a square of side 64 m and the other is arnglar plu Wichgreater area and by how much?

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75467.

Two plots of landbreadthve same perimstor One is a sqesre of side 60 m, while the other is asames 15 diam. Which plot has the greater area and by how much 7uftiple Cholce Questions (MCQs)

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75468.

If 7x+ 6y 420, x and y are natural numbers, then what can be said about x ?(1) x is always odd(3) x is even only if y is odd(2) x is always even(4) x is odd only if y is even

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75469.

find the volume of the cylinder and cone whose base and height are same.

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75470.

2*b^2 %2B 2*a^2 %2B 5*(a*b) %2B 9*x^2 - 9*x*(a %2B b)=0

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75471.

(3^(2*x %2B 1) %2B 9)/9=10

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75472.

8*((2*9)*longdiv)

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=8/12=1.5answer of the question

the correct answer of this question is 1.5

1.5 is the correct answer

1.5 is the correct ans

1.5 is correct answer of this problem

12÷8 = 1.5 is the answer

1.5 is the right answer of the following

8√92 = 1.5 is the correct answer

75473.

lhcl Suilace areasA river 3 m deep and 40 m wide is flowing at the rate of 2 km per hour. How muctwill fall into the sea in a minute?

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75474.

. Sum of the n terms ofan A.P. is S, sum of 2n termsis S,and the suni of 3n terms i :Si Prove that\frac{s_{1 n}}{S_{n}}=6, \text { where } S_{2 n}=3 S_{n}"Sha. 6, where S2-3S,

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75475.

Ifthe sum of first 9 terms ofan A.P is 8 l and that of first 17 terms is 289, find the sum of first n terms.而兩

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75476.

19. Find the area of a triangle, whose base is 6cm and altitude is 5cm.

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75477.

Find the area of triangle whose base is 10 cm and height is 7 cm.

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area of triangle = 1/2 ×base × height= 1/2×10×7= 35cm² is the correct answer of the given question

if the base is 10 cmand the height is 7 cmlet the area should be x so 10 x 5 equals to 50and7 x 5 = 35so we don't need the help of numeratorwhich number is coming in the denominator we should always take that number only as the area of the triangleso our area of the triangle is35cm sq

35 cm2 is right answer

75478.

Tthe surn ofthe first n terms ofanAPrs 4n-n^2, what is the first term (that is Sy? Whatis the sum of first two terms? What is the second term? Similarly, find the 3rd, the 10th andthe ath terims11

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75479.

3x3 =124×4 = 205x5 = 308x8 ?99%fail

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answer=74(8×8=64+8=74)

8×8=72 that is right answer

72 answer

74 that is right answer

72

................

...

40 will be the correct answer

74 is the correct answer

72.

75480.

3/5 %2B 9/5 %2B 9/2

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6.9 is correct answer

6•9 is the right answer.

6.9 is the correct answer

75481.

5*longdiv

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approximately 0.012.

82 is the best answer

approximately 0.012 is the answer

The right answer is 82.

1230/15=Answer is 82

Given division is 1230/15=82.

1230÷15=82 is the answer

82 is right answer right answer

82 is right answer right answer

82 is right answer......

75482.

((4/9)^3*(5/7)^4)/(8/7)^9

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1 is the right answer

75483.

9 \longdiv { 1 4 0 2 }

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75484.

Find the area of a triangle whose base is 6㎝ and corresponding height is 4㎝

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Height= 4 cmBase= 6 cmArea of triangle=1/2*base*height =1/2*6*4= 12 cm​2

75485.

the area of a triangle whose base is 15 cm and the corresponding height is 96 cm

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area=(1/2)×base×height =(1/2)×15×9.6 =72 cm square

75486.

Find the area of quadrilateral ABCD in which diagonal BD 24 cmsuch that AL 5 cm and CM 8 cm.24

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75487.

17.Ifthe sum offirst n terms ofan A.P is given by Sn-3n2+5n, find the nth term ofthe A.P

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The sum of n terms of an A.P. = 3n²+5n

then sum of n-1 terms= 3(n-1)²+5(n-1)

So nth term of A.P will be

T(n) = 3n² + 5n - 3(n-1)²-5(n-1)

= 3n²+5n-3n²-3+6n-5n+5

=6n+2

75488.

25. If Sn denotes the sum ofthe first n terms of an A.P., prove that S30 3 (S20 - Sio).

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75489.

90% Fail answer?

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1+1+1+1+1+1+1+1+1+1+1+0+1

= 12

1+1+1+1+1+1+1+1+1+1+1+1×0+1

75490.

-2*longdiv*(5*x - 3*x^2 %2B x^2 - 3) %2B x^2

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75491.

x=2*(2*longdiv) %2B 3

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75492.

7 \longdiv { 9 3 5 }

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75493.

2*(longdiv*(0*(0*7)))

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21÷107021)1070(5.`95238` 105^ ---^ 200^ 189 --- 110 105 --- 50 42 -- 80 63 -- 170 168 --- 20so quotient is 5.9523895239 will be recurring

0.0196....................

75494.

3*(6*(longdiv*(7*(4*8))))

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Let the no = x789x= 7897890x= 7897890/789Thence 7897890/789= 10010

75495.

3*(longdiv*(2*(2*6)))

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101 is the quotient is the correct answer of the given question

101.6 is the right answer

101.6 is the right answer

101.6 is correct answer of the following question

75496.

. In a rhombus PQRS, if angleP= 50°, find the measure of all the angles ofthe rhombus.

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Angle p is 50°and in rhombus opposite angle is equal thereforeangle r is also 50°now opposite side is parrallel thereforeangel p+s=180°(alt. interior angle)s=180-50=130°similarly,anle s and angle q are opposite anglestherefore,q=130°

75497.

5) Diagonals of a rhombus are18 cm and 24 cm. Find the sideof the rhombus.

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thank you

75498.

The area of a trapezium is 138 m2. The distance and the differelengths of the parallel sides are 12 m and 7 m respectively. Find the length of the parallel sides.

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Area of trapezium=138m^2height=12difference between sides =7now,area of trapezium. = 1/2×(a+b)×h1/2×(a+b)×12 = 138(a+b)=138/6(a+b)=23difference=7, =a-b =7now adding the sum and difference (a+b)+(a-b)=23+72a=30a=15so, b=8

:(a-b)=15-8=7.

75499.

17 cm. A rhombus shaped sheet with perimeter 40 cm and one of the diagonals as 12 cm is paihso 11 sides are 60cm and 77 cm and non-parallel sideon both the sides at the rate of8 per m2. Find the cost of painting.ium

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Perimeter = 2(12*x)( let the other no be x)

40/2*12=x

20/12=1.666

1.66*8= 13.28 rs

75500.

Find the sum ofthe first 24 terms ofthe sequence whose nth terms is given by an=343.

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As nth term of an AP isan = 3 + 2/3 n

Then, for n =1a1 = 3 + 2*1/3 = 11/3

For n = 24a24 = 3 + 2*24/3 = 3 + 16 = 19

Therefore, sum of 24 terms= 24/2(a1 + a24)= 12(11/3 + 19)= 12/3(11 + 57)= 4*68= 272

thanks