332354 + Interview Questions in Secondary School in Math Page 238 InterviewSolution

11851.	What is the cube root of
Answer» The CUBE ROOT of 97 is: (³√97 ≈ 4.594) Refer the ATTACHMENT for the solution

11851.

What is the cube root of

Answer»

The CUBE ROOT of 97 is: (³√97 ≈ 4.594)

Refer the ATTACHMENT for the solution

Discussion

11852.	_ the longest chord of the circles.
Answer» ANSWER: DIAMETER...........

11852.

_ the longest chord of the circles.

Answer»

ANSWER:

DIAMETER...........

Discussion

11853.	In the adjoining figure, PQR is an equivalent triangle in which coordinates of Q and R. (0,4)and (0,-4), respectively. find the coordinates of the vertex P.
Answer» Answer: (0, -2(root)3) Step-by-step explanation: As PQR IIS an equilateral triangle, PR = PQ = RQ = 4 units In triangle ROP, applying PYTHAGORAS theorem, RP² = RO² + OP² 4² = 2² + OP² OP² = 16 - 4 = 12 OP = 2 (root)3 So, COORDINATE of P is (0, -2(root)3)

11853.

In the adjoining figure, PQR is an equivalent triangle in which coordinates of Q and R. (0,4)and (0,-4), respectively. find the coordinates of the vertex P.

Answer»

Answer:

(0, -2(root)3)

Step-by-step explanation:

As PQR IIS an equilateral triangle, PR = PQ = RQ = 4 units

In triangle ROP, applying PYTHAGORAS theorem,

RP² = RO² + OP²

4² = 2² + OP²

OP² = 16 - 4 = 12

OP = 2 (root)3

So, COORDINATE of P is (0, -2(root)3)

Discussion

11854.	The product of 2/7and and reciprocal of -10/28is
Answer» ANSWER: $\frac{2}{7} \times \frac{1}{( \frac{ - 10}{28} )}$ $= \frac{2}{7} \times \frac{28}{ - 10}$ $= \frac{ - 4}{5}$

11854.

The product of 2/7and and reciprocal of -10/28is

Answer»

ANSWER:

$\frac{2}{7} \times \frac{1}{( \frac{ - 10}{28} )}$

$= \frac{2}{7} \times \frac{28}{ - 10}$

$= \frac{ - 4}{5}$

Discussion

11855.	(ii) एक पासा एक बार उछाला गया है, इसके ऊपरी भाग पर संख्या 2 आने की प्रायिकता होगी(अ)(iin-10(द)(ii) यदि A = {1, 2, 3} और B = {3, 4, 5} हो तो AUB का मान होगा :(अ) {1,2,3,4,5}(ब) {1,2,3}(स) (3,4,53(द) {3}
Answer» ANSWER: अ Step-by-step EXPLANATION: A=(1,2,3) B=(3,4,5) AUB=(1,2,3)U(3,4,5) AUB=(1,2,3,4,5)

11855.

(ii) एक पासा एक बार उछाला गया है, इसके ऊपरी भाग पर संख्या 2 आने की प्रायिकता होगी(अ)(iin-10(द)(ii) यदि A = {1, 2, 3} और B = {3, 4, 5} हो तो AUB का मान होगा :(अ) {1,2,3,4,5}(ब) {1,2,3}(स) (3,4,53(द) {3}

Answer»

ANSWER:

अ

Step-by-step EXPLANATION:

A=(1,2,3)

B=(3,4,5)

AUB=(1,2,3)U(3,4,5)

AUB=(1,2,3,4,5)

Discussion

11856.	Find the value of x in the equationx/3 + 4 = 2
Answer» ANSWER: X/3 + 4 = 2 or, x/3 = -2 or, x= - 6 Step-by-step EXPLANATION: $Hope it helps you...Please mark this answer as the brainliest and follow me.$

11856.

Find the value of x in the equationx/3 + 4 = 2

Answer»

ANSWER:

X/3 + 4 = 2

or, x/3 = -2

or, x= - 6

Step-by-step EXPLANATION:

$Hope it helps you...Please mark this answer as the brainliest and follow me.$

Discussion

11857.	2b+1/3b-2=9/10 solve,the following equations
Answer» Answer: Step-by-step explanation: AT FIRST I WILL CROSS MULTIPLY ; or, (2b+1)/(3b-2)=9/10 or, 10(2b+1)=9(3b-2) or, 20B + 10 = 27b - 18 or,10+18=27b-20b or,28=7b or, 28/7 = b or, 4=b or,b=4 (ANSWER)

11857.

2b+1/3b-2=9/10 solve,the following equations

Answer»

Answer:

Step-by-step explanation:

AT FIRST I WILL CROSS MULTIPLY ;

or, (2b+1)/(3b-2)=9/10

or, 10(2b+1)=9(3b-2)

or, 20B + 10 = 27b - 18

or,10+18=27b-20b

or,28=7b

or, 28/7 = b

or, 4=b

or,b=4 (ANSWER)

Discussion

11858.	QUESTION IN THE GIVEN ATTACHMENT
Answer» Answer: 2/9 Step-by-step EXPLANATION: BLUE = 3 White = 2 Red = 4 Total =9 White = 2/9

11858.

QUESTION IN THE GIVEN ATTACHMENT

Answer»

Answer:

2/9

Step-by-step EXPLANATION:

BLUE = 3

White = 2

Red = 4

Total =9

White = 2/9

Discussion

11859.	Identify a irrational number between 0.13,0.1315,0.301300130013
Answer» I THINK all are IRRATIONAL numbers If i am write PLEASE PRESS thanks so i know that my ANSWER is write or not

Discussion

11860.	20+(12.5-8÷9)×10 plz answer this plz fast
Answer» PLS MARK as BRAINLIEST ANSWER

Discussion

11861.	Find the value of I in the equation5+4=2
Answer» Step-by-step explanation: wt hv u wrote it is not able to understand wt is meaning of L in EQUATION u hv wrote one and in ANS u hv wrote another....

11861.

Find the value of I in the equation5+4=2

Answer»

Step-by-step explanation:

wt hv u wrote it is not able to understand wt is meaning of L in EQUATION u hv wrote one and in ANS u hv wrote another....

Discussion

11862.	Plz see the attachment and answer me.I will mark you as brainliest if all correct.
Answer» ANSWER: REFERE to the chapter polynomials and LEARN the concepts u will definitely GET it.

11862.

Plz see the attachment and answer me.I will mark you as brainliest if all correct.

Answer»

ANSWER:

REFERE to the chapter polynomials and LEARN the concepts u will definitely GET it.

Discussion

11863.	AC is the _ of the circle
Answer» ANSWER: it is the CHORD of CIRCLE OK

11863.

AC is the _ of the circle

Answer»

ANSWER:

it is the CHORD of CIRCLE OK

Discussion

11864.	[INTEGER TYPE]12 * 4 =8]If mantissa of a number N to the base 32 is varying from 0.2 to 0.8 both inclusive, and whosecharacteristic is 1.then find the number of integral values of N.[Ans. 4491
Answer» ANSWER: I HOPE YOU UNDER STAND THIS ANSWER SO MAKE ME BRAIN LISTER DUDE

11864.

[INTEGER TYPE]12 * 4 =8]If mantissa of a number N to the base 32 is varying from 0.2 to 0.8 both inclusive, and whosecharacteristic is 1.then find the number of integral values of N.[Ans. 4491

Answer»

ANSWER:

I HOPE YOU UNDER STAND THIS ANSWER

SO MAKE ME BRAIN LISTER DUDE

Discussion

11865.	Tea blenders mix two varieties of tea costing 20 and 25 Rs per kg in the ratio 6:4. Themixture is sold at Rs 23.5 per kg Find approximate percentage profit.
Answer» ANSWER: can't UNDERSTAND your QUESTION SORRY pls forgive me

11865.

Tea blenders mix two varieties of tea costing 20 and 25 Rs per kg in the ratio 6:4. Themixture is sold at Rs 23.5 per kg Find approximate percentage profit.

Answer»

ANSWER:

can't UNDERSTAND your QUESTION

SORRY pls forgive me

Discussion

11866.	Which ratio is smaller 3:5 or 7:11
Answer» ANSWER: PLEASE MARK me as BRAINLIST.

11866.

Which ratio is smaller 3:5 or 7:11

Answer»

ANSWER:

PLEASE MARK me as BRAINLIST.

Discussion

11867.	If a + b =1 and AB =o then find a3+ b3
Answer» Answer: 1 Step-by-step EXPLANATION: As a + B= 1 Taking cube on both SIDES, (a + b)³ = 1³ a³ + b³ + 3AB( a + b) = 1 a³ + b³ + 3 ×0 ×1 = 1 a³ + b³ = 1

11867.

If a + b =1 and AB =o then find a3+ b3

Answer»

Answer:

1

Step-by-step EXPLANATION:

As a + B= 1

Taking cube on both SIDES,

(a + b)³ = 1³

a³ + b³ + 3AB( a + b) = 1

a³ + b³ + 3 ×0 ×1 = 1

a³ + b³ = 1

Discussion

11868.	Find the equation of tangent and normal tu the curve 3x^2-7y^2+4xy-8x=0 at (-1, 1)
Answer» Answer: 3×^2-7y^2+4xy BACK to you and your FAMILY

11868.

Find the equation of tangent and normal tu the curve 3x^2-7y^2+4xy-8x=0 at (-1, 1)

Answer»

Answer:

3×^2-7y^2+4xy BACK to you and your FAMILY

Discussion

11869.	All the black card are removed from a pack of 52 cards. Find the probability of getting find the face card, red card, black card, king
Answer» eneejejensndndndndndndjsjwjsbhehiwnw shejwnavsuwiwnw whwhw E s

Discussion

11870.	Proove root 3+root 2/root 3-root 2 =a+b root6
Answer» PLS MARK as BRAINLIEST ANSWER

Discussion

11871.	Present ages of Mohan and gopal are in the ratio3:5. 10 year from now the ratio of their ages will be 5:7. Find their present ages
Answer» PLS MARK as BRAINLIEST ANSWER

Discussion

11872.	If the sides of a triangle are equal to the sides of another triangle, then the angles of the triangle are equal
Answer» ANSWER: equal Step-by-step EXPLANATION:

11872.

If the sides of a triangle are equal to the sides of another triangle, then the angles of the triangle are equal

Answer»

ANSWER:

equal

Step-by-step EXPLANATION:

Discussion

11873.	The largest dimension of square tiles which can be used to floor a hall of dimension 416 feet ×234 feet completely.
Answer» ANSWER: DIMENSION of SQUARE is not given, to FIND the area of the tile... it will be area of square TILES/ area of the hall

11873.

The largest dimension of square tiles which can be used to floor a hall of dimension 416 feet ×234 feet completely.

Answer»

ANSWER:

DIMENSION of SQUARE is not given, to FIND the area of the tile... it will be area of square TILES/ area of the hall

Discussion

11874.	If x+1/x=3 then find x_1/x
Answer» Step-by-step EXPLANATION: x+1/x=3 x/x=3×1 x/x=3

11874.

If x+1/x=3 then find x_1/x

Answer»

Step-by-step EXPLANATION:

x+1/x=3

x/x=3×1

x/x=3

Discussion

11875.	Find the HCF using 392 and 1386 using long division
Answer» ANSWER: $2\| 392 \\ 2\|192\| \| \\2 \|98\| \\ 7 \\|49\| \\ 7 \|7 \\ hcf = {2}^{3} \| \times {7}^{2}$

11875.

Find the HCF using 392 and 1386 using long division

Answer»

ANSWER:

$2| 392 \\ 2|192| | \\2 |98| \\ 7 \|49| \\ 7 |7 \\ hcf = {2}^{3} | \times {7}^{2}$

Discussion

11876.	In hexagon ABCDEF, side AB is parallel to EF and angle b:c:d:e=5:4:2:1.find angle b, c, D, e. Q. 12
Answer» Step-by-step EXPLANATION: LET the angleA=x f=x so a+b+c+d+e+f=720 x+5x+4x+2x+1x+x=720 14x=720 x=720/14 NEXT do it

11876.

In hexagon ABCDEF, side AB is parallel to EF and angle b:c:d:e=5:4:2:1.find angle b, c, D, e. Q. 12

Answer»

Step-by-step EXPLANATION:

LET the angleA=x

f=x

so a+b+c+d+e+f=720

x+5x+4x+2x+1x+x=720

14x=720

x=720/14

NEXT do it

Discussion

11877.	-39pq²r⅝ divided by -24p³q³r
Answer» Answer: 13/p²qr $\frac{3}{8}$ Step-by-step EXPLANATION: -39pq²r⅝ ÷ -24p³q³r compare each CORRESPONDING NUMBER and LETTER then divide first:-39÷-24=13/8 second:p÷p³=1/p² third:q²÷q³=1/q fourth:r⅝÷r=1/r $\frac{3}{8}$ answer=13/p²qr $\frac{3}{8}$

11877.

-39pq²r⅝ divided by -24p³q³r

Answer»

Answer:

13/p²qr $\frac{3}{8}$

Step-by-step EXPLANATION:

-39pq²r⅝ ÷ -24p³q³r

compare each CORRESPONDING NUMBER and LETTER then divide

first:-39÷-24=13/8

second:p÷p³=1/p²

third:q²÷q³=1/q

fourth:r⅝÷r=1/r $\frac{3}{8}$

answer=13/p²qr $\frac{3}{8}$

Discussion

11878.	If a/ 3 , 4 is the midpoint of the line segment joining the point p - 6,5 and the q -2,3 then the value of a is
Answer» ANSWER: a=45800000 is the CORRECT answer Step-by-step EXPLANATION: MARK as BRAINLEIST

11878.

If a/ 3 , 4 is the midpoint of the line segment joining the point p - 6,5 and the q -2,3 then the value of a is

Answer»

ANSWER:

a=45800000 is the CORRECT answer

Step-by-step EXPLANATION:

MARK as BRAINLEIST

Discussion

11879.	An angel whose measure is between 0 degree and 90 degree is called _____
Answer» Answer: ACUTE ANGLE HOPE IT HELPED MARK AS BRAINLIEST PLZ

11879.

An angel whose measure is between 0 degree and 90 degree is called _____

Answer»

Answer:

ACUTE ANGLE

HOPE IT HELPED MARK AS BRAINLIEST PLZ

Discussion

11880.	Exponential (-5/7)(-5/7)(-5/7)*(-5/7)
Answer» PLS MARK as BRAINLIEST ANSWER

Discussion

11881.	Find the probability of scoring 3 in a 50-mark test.
Answer» It is so EASY Total marks test=50 Marks SCORED in test=3 P(E)=3/50

Discussion

11882.	A 300 m long wire is used to fence a rectangular plot whose length is twiceFind its width. Find the length and breadth of the plot.widthwidthwidth
Answer» ↦Solution : - Let the Width of the RECTANGULAR plot be = y Then, LENGTH of the rectangular plot will be = 2y Total wire needed to fence the plot = 300m FormuLa : - Perimeter of rectangle = 2( l + B) Now , →2(l + b) = 300 →2(2y + y) = 300 →2(3y) = 300 →6y = 300 →y = 300/6 →y = 50 Hence , Width of the rectangular plot is 50m So , Width of Rectangula Plot = (y) = 50m Length of Rectangular Plot = 2(y) 2×50 100m Therefore , Width of rectangular plot is 50m and Length of rectangular plot is 100m ..

11882.

A 300 m long wire is used to fence a rectangular plot whose length is twiceFind its width. Find the length and breadth of the plot.widthwidthwidth

Answer»

↦Solution : -

Let the Width of the RECTANGULAR plot be = y

Then, LENGTH of the rectangular plot will be = 2y

Total wire needed to fence the plot = 300m

FormuLa : -

Perimeter of rectangle = 2( l + B)

Now ,

→2(l + b) = 300

→2(2y + y) = 300

→2(3y) = 300

→6y = 300

→y = 300/6

→y = 50

Hence , Width of the rectangular plot is 50m

So ,

Width of Rectangula Plot = (y) = 50m

Length of Rectangular Plot = 2(y)

2×50

100m

Therefore , Width of rectangular plot is 50m and Length of rectangular plot is 100m ..

Discussion

11883.	The area of a Rectangle is 45 1/2 m2.if its length is 3 1/4m, what is it breath?
Answer» PLS MARK as BRAINLIEST ANSWER

Discussion

11884.	√2,3√9,4√16,5√32 which is greater
Answer» ANSWER: KJBKBKLHIKNLK Step-by-step EXPLANATION: LKJLIJNKLJ'PL,'L

11884.

√2,3√9,4√16,5√32 which is greater

Answer»

ANSWER:

KJBKBKLHIKNLK

Step-by-step EXPLANATION:

LKJLIJNKLJ'PL,'L

Discussion

11885.	Sakshi sells coffee at a profit of 12% . If he reduces the price by ₹ 29 per kg, he would make a loss of 17%. Find the initial selling price per kg of coffee.
Answer» $\sf\large\underline{Let:}$ $\rm{\implies The\: initial\:CP\:_{(coffee)}=x}$ $\sf\large\underline{To\: Find:}$ $\rm{\implies The\: initial\:CP\:_{(coffee)}=?}$ $\sf\large\underline{Solution:}$ To calculate initial price of per kg coffee we have calculate selling price of coffee when profit on 12% and loss on 17% separately here] $\sf\small\underline{Calculate\:SP\: profit\:on\:12\%:}$ $\tt{\implies SP=\dfrac{100+G\%}{100}\times\:CP}$ $\tt{\implies SP=\dfrac{100+12}{100}\times\:x}$ $\tt{\implies SP=\dfrac{112x}{100}}$ $\sf\small\underline{Calculate\:SP\:loss\:on\:17\%:}$ $\tt{\implies SP=\dfrac{100-L\%}{100}\times\:CP}$ $\tt{\implies SP=\dfrac{100-17}{100}\times\:x}$ $\tt{\implies SP=\dfrac{83x}{100}}$ Note here as GIVEN in QUESTION that he would make a loss of 17% when he REDUCES the price by Rs. 29 per kg. It means here Rs. 29 is the DIFFERENCE between initial selling and reducing selling price.] $\tt{\implies SP\:_{(profit\:on\:12\%)}-SP\:_{(loss\:on\:17\%)}=29}$ $\tt{\implies \dfrac{112x}{100}-\dfrac{83x}{100}=29}$ $\tt{\implies \dfrac{112x-83x}{100}=29}$ $\tt{\implies \dfrac{29x}{100}=29}$ $\tt{\implies 29x=2900\implies x=100}$ $\sf\large{Hence,}$ $\rm{\implies The\: initial\:CP\:_{(coffee)}=Rs.100}$

11885.

Sakshi sells coffee at a profit of 12% . If he reduces the price by ₹ 29 per kg, he would make a loss of 17%. Find the initial selling price per kg of coffee.

Answer»

$\sf\large\underline{Let:}$

$\rm{\implies The\: initial\:CP\:_{(coffee)}=x}$

$\sf\large\underline{To\: Find:}$

$\rm{\implies The\: initial\:CP\:_{(coffee)}=?}$

$\sf\large\underline{Solution:}$

To calculate initial price of per kg coffee we have calculate selling price of coffee when profit on 12% and loss on 17% separately here]

$\sf\small\underline{Calculate\:SP\: profit\:on\:12\%:}$

$\tt{\implies SP=\dfrac{100+G\%}{100}\times\:CP}$

$\tt{\implies SP=\dfrac{100+12}{100}\times\:x}$

$\tt{\implies SP=\dfrac{112x}{100}}$

$\sf\small\underline{Calculate\:SP\:loss\:on\:17\%:}$

$\tt{\implies SP=\dfrac{100-L\%}{100}\times\:CP}$

$\tt{\implies SP=\dfrac{100-17}{100}\times\:x}$

$\tt{\implies SP=\dfrac{83x}{100}}$

Note here as GIVEN in QUESTION that he would make a loss of 17% when he REDUCES the price by Rs. 29 per kg. It means here Rs. 29 is the DIFFERENCE between initial selling and reducing selling price.]

$\tt{\implies SP\:_{(profit\:on\:12\%)}-SP\:_{(loss\:on\:17\%)}=29}$

$\tt{\implies \dfrac{112x}{100}-\dfrac{83x}{100}=29}$

$\tt{\implies \dfrac{112x-83x}{100}=29}$

$\tt{\implies \dfrac{29x}{100}=29}$

$\tt{\implies 29x=2900\implies x=100}$

$\sf\large{Hence,}$

$\rm{\implies The\: initial\:CP\:_{(coffee)}=Rs.100}$

Discussion

11886.	A.________ has no length, breadth, height or thickness.
Answer» CIRCLE has no LENGTH, BREADTH, HEIGHT or THICKNESS

11886.

A.________ has no length, breadth, height or thickness.

Answer»

CIRCLE has no LENGTH, BREADTH, HEIGHT or THICKNESS

Discussion

11887.	5 x square - 30 X y + 9 y square
Answer» Answer: PLS MARK ME AS BRAINLIEST Step-by-step explanation: 25x^2 - 30xy + 9y^2 it is actually the algebraic identity (a-b)^2 = a^2 - 2AB +b^2 (5X)^2 - 2 (5x) (3y) + (3y) = (5x -3y)^2 HOPE YOU LIKE IT AND MARK ME AS BRAINLIEST

11887.

5 x square - 30 X y + 9 y square

Answer»

Answer:

PLS MARK ME AS BRAINLIEST

Step-by-step explanation:

25x^2 - 30xy + 9y^2

it is actually the algebraic identity (a-b)^2 = a^2 - 2AB +b^2

(5X)^2 - 2 (5x) (3y) + (3y)

= (5x -3y)^2

HOPE YOU LIKE IT AND MARK ME AS BRAINLIEST

Discussion

11888.	Explain why 7 X 11 X 15 + 15 is composite
Answer» Step-by-step explanation: 7×11×15+15 15(7×11+1) 15(78) 1170 so the given NUMBER has FACTORS more than 1 and number itself so it is CONSIDERED as composite number

11888.

Explain why 7 X 11 X 15 + 15 is composite

Answer»

Step-by-step explanation:

7×11×15+15

15(7×11+1)

15(78)

1170

so the given NUMBER has FACTORS more than 1 and number itself so it is CONSIDERED as composite number

Discussion

11889.	If a, βare the zeros of the polynomial x2-9 find αβ(α+β)
Answer» Answer:0 Step-by-step EXPLANATION: x²-9 x=+-ROOT9 alpha=+root9 Beta=-root9 Therefore root9×-root9(root9+[-root9]) 0

11889.

If a, βare the zeros of the polynomial x2-9 find αβ(α+β)

Answer»

Answer:0

Step-by-step EXPLANATION:

x²-9

x=+-ROOT9

alpha=+root9

Beta=-root9

Therefore

root9×-root9(root9+[-root9])

0

Discussion

11890.	The distribution of heights of 50 children ( measured to be in cm ) was under : height - 110,115,118,120,121,125. No.of students - 6,8,14,15,4,5. Find the mean using shortcut method
Answer» MARK me as BRAINLIST PLEASE I REQUEST you

Discussion

11891.	Please answer me fastI will give 10 thanks and mark brainlist it's a big offer don't miss it guys ❤❤❤
Answer» Answer: 0, because pineapples CANT GROW in trees Step-by-step EXPLANATION: MARK me as brainliest answrt

11891.

Please answer me fastI will give 10 thanks and mark brainlist it's a big offer don't miss it guys ❤❤❤

Answer»

Answer:

0, because pineapples CANT GROW in trees

Step-by-step EXPLANATION:

MARK me as brainliest answrt

Discussion

11892.	What is the number of sides of a regular polygon having the given angle sum 3240
Answer» ANSWER: (n-2)×180=3240 after SOLVING this EQUATION we GET n=20

11892.

What is the number of sides of a regular polygon having the given angle sum 3240

Answer»

ANSWER:

(n-2)×180=3240

after SOLVING this EQUATION we GET

n=20

Discussion

11893.	8,9,25 find the hcf of lcm
Answer» Step-by-step EXPLANATION: all no.s LCM is 1. HCM is ... please MARK me brain LIST please.

11893.

8,9,25 find the hcf of lcm

Answer»

Step-by-step EXPLANATION:

all no.s LCM is 1.

HCM is

...

please MARK me brain LIST please.

Discussion

11894.	Plz tell the answer i have online test tomorrow
Answer» $i)BE \:is \:<klux>TRANSVERSAL</klux> \: to \: AB \:and \: EF$ $\angle {ABE} = \angle {BEF} = 70\degree$ /* ALTERNATE angles are EQUAL / $\therefore AB \parallel EF \: --(1)$ $ii)CE \:is \:Transversal \: to \: CD \:and \: EF$ $\angle {DCE} + \angle {CEF}$ $= 140\degree + 40 \degree$ $= 180\degree$ / Sum of interior angles same SIDE of the the Transversal is supplementary / $\therefore EF \parallel CD \: --(2)$ / From (1) and (2) / $AB \parallel EF \: and \: EF \parallel CD$ $\implies AB \parallel CD$ / Transitive Property */ •••♪

11894.

Plz tell the answer i have online test tomorrow

Answer»

$i)BE \:is \:<klux>TRANSVERSAL</klux> \: to \: AB \:and \: EF$

$\angle {ABE} = \angle {BEF} = 70\degree$

/* ALTERNATE angles are EQUAL */

$\therefore AB \parallel EF \: --(1)$

$ii)CE \:is \:Transversal \: to \: CD \:and \: EF$

$\angle {DCE} + \angle {CEF}$

$= 140\degree + 40 \degree$

$= 180\degree$

/* Sum of interior angles same SIDE of the the Transversal is supplementary */

$\therefore EF \parallel CD \: --(2)$

/* From (1) and (2) */

$AB \parallel EF \: and \: EF \parallel CD$

$\implies AB \parallel CD$

/* Transitive Property */

•••♪

Discussion

11895.	DE(sinx.siny -xey) dy= (ey+cosx.cosy)dx for exactness and solve it if it is exact
Answer» Answer: (c) Trivial SOLUTION: If y = 0 is a solution to a DIFFERENTIAL equation ... Check the exactness by ... (1 - sin x tan y) dx + (cos x sec2 y) dy = 0 ... 2 sinh x COSH x cos y dx - sinh2 x sin y dy = 0.

11895.

DE(sinx.siny -xey) dy= (ey+cosx.cosy)dx for exactness and solve it if it is exact

Answer»

Answer:

(c) Trivial SOLUTION: If y = 0 is a solution to a DIFFERENTIAL equation ... Check the exactness by ... (1 - sin x tan y) dx + (cos x sec2 y) dy = 0 ... 2 sinh x COSH x cos y dx - sinh2 x sin y dy = 0.

Discussion

11896.	If tan theta =a/b find the value of cos theta+sintheta/costheta-sin theta
Answer» Answer:- (Theta is TAKEN as A). Given: tan A = a/b → OPPOSITE SIDE/Adjacent side = a/b We know that, (HYPOTENUSE)² = (Opposite side)² + (Adjacent side)² → (Hypotenuse)² = a² + b² → Hypotenuse = √(a² + b²) → Cos A = Adjacent side/Hypotenuse → Cos A = b/√(a² + b²) → SIN A = Opposite side/Hypotenuse → Sin A = a/√(a² + b²) → (Cos A + Sin A) = (b/√a² + b²) + (a/√a² + b²) → Cos A + Sin A = (b + a)/√a² + b² Similarly, → Cos A - Sin A = (b - a)/√a² + b² Hence, (Cos A + Sin A)/(Cos A - Sin A) = [(b + a)/ √a² + b² ]/[(b - a)/√a² + b² ] → (Cos A + Sin A)/(Cos A - Sin A) = (b + a)/(b - a).

11896.

If tan theta =a/b find the value of cos theta+sintheta/costheta-sin theta

Answer»

Answer:-

(Theta is TAKEN as A).

Given:

tan A = a/b

→ OPPOSITE SIDE/Adjacent side = a/b

We know that,

(HYPOTENUSE)² = (Opposite side)² + (Adjacent side)²

→ (Hypotenuse)² = a² + b²

→ Hypotenuse = √(a² + b²)

→ Cos A = Adjacent side/Hypotenuse

→ Cos A = b/√(a² + b²)

→ SIN A = Opposite side/Hypotenuse

→ Sin A = a/√(a² + b²)

→ (Cos A + Sin A) = (b/√a² + b²) + (a/√a² + b²)

→ Cos A + Sin A = (b + a)/√a² + b²

Similarly,

→ Cos A - Sin A = (b - a)/√a² + b²

Hence,

(Cos A + Sin A)/(Cos A - Sin A) = [(b + a)/

√a² + b² ]/[(b - a)/√a² + b² ]

→ (Cos A + Sin A)/(Cos A - Sin A) = (b + a)/(b - a).

Discussion

11897.	Plz solve the questions....
Answer» ANSWER: What is the REASON BEHIND this.

11897.

Plz solve the questions....

Answer»

ANSWER:

What is the REASON BEHIND this.

Discussion

11898.	5x²+9x+4plz Answer it with factories
Answer» ANSWER: $5x {}^{2} + 9x + 4$ $s = 9 = 5 + 4$ $p = 20 = 5 \times 4$ $5x {}^{2} + 5x + 4x + 4$ $5x(x + 1) + 4(x + 1)$ $(5x + 4)(x + 1)$ $pls \: mark \: me \: as \: brainliest$

11898.

5x²+9x+4plz Answer it with factories

Answer»

ANSWER:

$5x {}^{2} + 9x + 4$

$s = 9 = 5 + 4$

$p = 20 = 5 \times 4$

$5x {}^{2} + 5x + 4x + 4$

$5x(x + 1) + 4(x + 1)$

$(5x + 4)(x + 1)$

$pls \: mark \: me \: as \: brainliest$

Discussion

11899.	OL is the_ of the circle.
Answer» RADIUS of CIRCLE... HOPE it's HELP...

11899.

OL is the_ of the circle.

Answer»

RADIUS of CIRCLE...

HOPE it's HELP...

Discussion

11900.	7-x/3=4-x solve step by step
Answer» 7 - X/3 = 4 21 - x = 12 21 - 12 = x x= 9 Therefore, x = 9

11900.

7-x/3=4-x solve step by step

Answer»

7 - X/3 = 4

21 - x = 12

21 - 12 = x

x= 9

Therefore, x = 9

Discussion

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