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-9+4= -5is the correct answer........

iska answer 13 hoga I am right

l-9l+l4l= 9+4 = 13that is your answer

13 is the right answer of your question plz like my answer

The suitcasel = 80 cmb = 48 cm h = 24 cmtherefore,Total Surface Area = 2(lb + bh + lh)= 2 [(80*48) + (48*24) + (80 * 24)]= 2 (3840 + 1152 + 1920)= 2 * 6912= 13824 cm^2

Length of cloth required = (area of suitcase/ breadth) * 100= (13824/ 96) * 100= 144 * 100= 14400 cm= 14400 /100 m= 144 m

thank uu very much

thank u so much

A = P*[1+(r/100)]^n= 7000*[1+(12/100)]^2= 7000*(28/25)²= ₹ 8780.8

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For compound interest

A = P(1 + R/100)^n

Given P = 7000, n = 2, R = 12%, A =?

A = 7000(1 + 12/100)^2 = 7000(1 + 3/25)^2 = 7000(28/25)^2 = 7000(1.12*1.12) = 7000(1.25) = 8750

Compound Interest Rahul gets after 2 years= A - P= 8750 - 7000= Rs 1750

A = P*[1+(r/100)]^n= 7000*[1+(12/100)]^2= 7000*(28/25)²= ₹ 8780.8

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very bad

he first 40 positive integers divisible by 6 are 6,12,18,....... upto40 terms

the given series is in arthimetic progression with first term a=6 and common difference d=6

sum of n terms of an A.p is

n/2×{2a+(n-1)d}

→required sum = 40/2×{2(6)+(39)6}

=20{12+234}

=20×246

=4920

Working hours of Bank = 8Bank open at 10:00 am

Now let Bank close at time nThen,n - 10 = 8n = 18

It means bank close for the day at 18:00which means 6:00 pm

12. the first 40 positive integers divisible by 6 are 6,12,18,....... upto40 terms

the given series is in arthimetic progression with first term a=6 and common difference d=6

sum of n terms of an A.p is

n/2×{2a+(n-1)d}

→required sum = 40/2×{2(6)+(39)6}

=20{12+234}

=20×246

=4920

13. The first 8 multiples of 8 are8, 16, 24, 32, 40, 48, 56,64

These are in an A.P., having first term as 8 and common difference as 8.

Therefore,a= 8d= 8

S15= ?

Sn=n/2[2a+ (n- 1)d]

S15= 15/2[2(8)+ (15 - 1)8]

=15/2[6 + (14) (8)]

=15/2[16 + 112]

= 15(128)/2

= 15 × 64

= 960

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working hour for Smita = 6 hrs

and working hour of kajal = 8 hrs

ratio is = 8:6 = 8/6 = 4:3

Let l, m and n be three parallel lines intersected by two transversals p and q such that l, m and n cut off equal intercepts AB and BC on p i.e. AB = BC.

To show: l, m and n cut off equal intercepts DE and EF on q also, i.e. DE = EF.

Construction: Join AF intersecting m at G.

So, the trapezium ACFD is divided into two triangles: ΔACF and ΔAFD.

It is given that AB = BC

⇒ B is the mid point of AC

Now in ΔACF, B is the mid point of AC and BG || CF(as m || n )

∴ By mid point theorem, G is the mid point of AF.

Now in ΔAFD, G is the mid point of AF and GE || AD(as l || m)

⇒ E is the mid point of DF (by mid point theorem)

⇒ DE = EF

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we know when a+b+c =0a³+b³+c³ = 3abcsohere we have 15+ (-9) + (-6) = 0

so 15³ -9³ -6³ = 3 × 15×(-9)×(-6)= 2430

my answer is 12 pieces

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E be event of getting prime number

E = 25 numbers are prime between 1 to 100.

P(E) = 25/100 = 1/4

5.ans=Answer:

30° is the angle of Projection

Explanation:

Let say Angle of Projection = α

Horizontal Velocity = Vcosα

Vertical Velocity = V sinα

Velocity at max height = 0

using V = U + aT time = V sinα/g

Max Height = V²sin²α/2g ( using V² - U² = 2aS)

Time of Flight = 2V sinα/g

Horizontal Distance = Vcosα * 2V sinα/g

The horizontal range of a projectile is 4√3 times the maximum height achieved by it

=> Vcosα * 2V sinα/g = 4√3 V²sin²α/2g

=> 1/√3 = Tanα

=> α = 30°

30 is the angle of projectionanswer is 30°

tan a=1/2 anda=30.

Let two odd numbers are x and (x+2)

Then as per given conditionx + x + 2 = 1402x = 138x = 138/2 = 69

Bigger number = x + 2 = 71

To prove :- Angle ROS = 1/2 ( Angle QOS - POS )

Proof :- Angle POR = Angle ROS = 90 degree ( Perpendicular )

Angle QOS = Angle ROQ + Angle ROS

Angle QOS = 90 degree + Angle ROS ----------------- Eqn 1

Angle POS = Angle POR - angle ROS

Angle POS = 90 degree - Angle ROS ---------------Eqn 2

Now,Subtracting Eqn 1 & 2

Angle QOS - Angle POS = 90 degree + Angle ROS - ( 90 degree - ROS )

Angle QOS - Angle POS = 90 + Angle ROS - 90 degree + Angle ROS

Angle QOS - Angle POS = 2 Angle ROS

Angle ROS = 1/2 ( Angle QOS - Angle POS )

HENCE PROVED

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कमरे की दीवारों का क्षेत्रफल होगा2(4*3.5+3*4+3*3.5)2(14+12+10.5)= 2(36.5)73m^2

1 negative 2 positive 3 positive 4 positive 5 negative 6 no 7 1

1 negative2 positive3 positive4 positive5 negative6 no7 18=12/59=36/49

India become republic on 1950.

Prime factorization of 1950 is 1950:2 × 3 × 5²× 13

right

if X is reciprocal of ythat is y=1/Xhence reciprocal of y is x

thanks

zero has no reciprocal and reciprocal of 1 is 1.

explanation : given, y be the reciprocal of rational number x.

mathematically, y = 1/x

from cross multiplication,

or, y × x = 1

dividing by y both sides,

or, y × x/y = 1/y

or, x = 1/y .....(1)

hence, it is clear that x is reciprocal of y.

now question want to find reciprocal of y.

from equation (1), we get x is reciprocal of y.

SInce, there are 7 ways of entering into the room. Therefore after entering into the room, the man come out through a different gate in6 ways.

Hence, by the fundamental principle of multiplication, total number of ways is 7*6 = 42 ways

(D + E + F + D - E - F) (D + E + F - D + E + F) =(2D) (2E + 2F) = 4DE + 4DF

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the first one is the answer is that a

1-. 8/25,2/5,4/72- 1/3,2/5,5/9,4/7

1: 8/25,2/5,4/72: 1/3,2/5,5/9,4/7

Olfactory receptor, also called smell receptor, protein capable of binding odour molecules that plays a central role in the sense of smell (olfaction). ... The cilia are covered by the mucus of the nasal cavity, facilitating the detection of and response to odour molecules by olfactory receptors. Olfactory receptor present in human beings are NOSE A taste receptor is a type of receptor which facilitates the sensation of taste. These receptors are of four types. When food or other substances enter the mouth, molecules interact with saliva and are bound to taste receptors in the oral cavity and other locations. Gustatory receptor present in human beings is tongue.

The given data can be tabulated as below

Work.........25.........20

Hour............8..........X

As hour will will in crease if days will decrease then it is a inverse variation

Therefore 25*8 = 20*X or X= 25*8/20 = 10 hours (Ans)