332354 + Interview Questions in Secondary School in Math

1.	Each of these and show that they can be rewritten in the form or 3 + 1division lemma to show that the cube of any positive integer is of the formlor
Answer» ANSWER: *MARTY* is *CALLED* to *the* *BEST* of *ALUMINIUM* *and*

1.

Each of these and show that they can be rewritten in the form or 3 + 1division lemma to show that the cube of any positive integer is of the formlor

Answer»

ANSWER:

MARTY is CALLED to the BEST of ALUMINIUM and

Discussion

2.	90/x+90/x+9+1/2=5help me pl
Answer» $\green{\bold{\underline{ ☆ UPSC-ASPIRANT ☆} }}$ $\red{\bold{\underline{\underline{QUESTION:-}}}}$ 90/x+90/x+9+1/2=5 $\huge\bigstar\huge\tt\underline\red{ᴀɴsᴡᴇʀ }\bigstar$ ---->>>>>>Here is your answer<<<<-------- ❱ ❱ ❱ see in the PICTURE above attach for COMPLETE solution step by step:- HOPE IT HELPS YOU.. _____________________ Thankyou:)

2.

90/x+90/x+9+1/2=5help me pl

Answer»

$\green{\bold{\underline{ ☆ UPSC-ASPIRANT ☆} }}$

$\red{\bold{\underline{\underline{QUESTION:-}}}}$

90/x+90/x+9+1/2=5

$\huge\bigstar\huge\tt\underline\red{ᴀɴsᴡᴇʀ }\bigstar$

---->>>>>>Here is your answer<<<<--------

❱ ❱ ❱ see in the PICTURE above attach for COMPLETE solution step by step:-

HOPE IT HELPS YOU..

_____________________

Thankyou:)

Discussion

3.	2 hemisphere whose radius 21cm are placed at the both ends of a cylinder whose height is 4 times of the radius. Find the volume of the solid object. [ans: 155232 cm²]
Answer» ANSWER: Answer is 174636cm^3 HOPE it HELPS.

3.

2 hemisphere whose radius 21cm are placed at the both ends of a cylinder whose height is 4 times of the radius. Find the volume of the solid object. [ans: 155232 cm²]

Answer»

ANSWER:

Answer is 174636cm^3 HOPE it HELPS.

Discussion

4.	If one of the zeroes of cubic polynomial is x³+ax²+bx+c is -1, then product of other two zeroes is: 1. b-a-1 2. b-a+1 3. a-b+1 4. a-b-1 .
Answer» Step-by-step explanation: iska answer book KE LAST me MIL gayega udhar se DEKH lo

4.

If one of the zeroes of cubic polynomial is x³+ax²+bx+c is -1, then product of other two zeroes is: 1. b-a-1 2. b-a+1 3. a-b+1 4. a-b-1 .

Answer»

Step-by-step explanation:

iska answer book KE LAST me MIL gayega udhar se DEKH lo

Discussion

5.	solve my question as fast as possible do not answer unknown and unuseful answer otherwise it will be reported
Answer» Hey Buddy Here's The Answer ------------------------------------ Consecutive Numbers :- Numbers which follow each other in order. EX :- 1, 2, 3, 4, and so on. Let the first consecutive number be ( X ), so the second consecutive number will be ( x + 1 ). According To Question Difference between square of them is 31, So => ( x + 1 )² - ( x )² = 31 Using property ( a + b )² = a² + b² + 2.a.b => x² + 1² + 2.x.1 - x² = 31 => 2X + 1 = 31 => 2x = 31 - 1 => 2x = 30 => x = 30/2 => x = 15 Hope It Helps.

5.

solve my question as fast as possible do not answer unknown and unuseful answer otherwise it will be reported

Answer»

Hey Buddy

Here's The Answer

------------------------------------

Consecutive Numbers :- Numbers which follow each other in order.

EX :- 1, 2, 3, 4, and so on.

Let the first consecutive number be ( X ), so the second consecutive number will be ( x + 1 ).

According To Question

Difference between square of them is 31, So

=> ( x + 1 )² - ( x )² = 31

Using property ( a + b )² = a² + b² + 2.a.b

=> x² + 1² + 2.x.1 - x² = 31

=> 2X + 1 = 31

=> 2x = 31 - 1

=> 2x = 30

=> x = 30/2

=> x = 15

Hope It Helps.

Discussion

6.	12. किसी किसान ने चार गाये प्रत्येक 3600 रु. में खरीदी तथा उसने वे गाये दिल्ली के एकव्यापारी के पास भेज दी। उनके भेजने में उसने कुल 425 रू- रेल भाड़े तथा 175 रु. चारे परव्यय किए। वहाँ पर उन गायों को प्रति गाय 4500 रु. में बेच दिया। कुल गायों को कितनेप्रतिशत लाभ अथवा हानि पर बेचा गया?
Answer» Answer: 3600+425+175=4200 -4500=300 के लाभ पर

6.

12. किसी किसान ने चार गाये प्रत्येक 3600 रु. में खरीदी तथा उसने वे गाये दिल्ली के एकव्यापारी के पास भेज दी। उनके भेजने में उसने कुल 425 रू- रेल भाड़े तथा 175 रु. चारे परव्यय किए। वहाँ पर उन गायों को प्रति गाय 4500 रु. में बेच दिया। कुल गायों को कितनेप्रतिशत लाभ अथवा हानि पर बेचा गया?

Answer»

Answer:

3600+425+175=4200 -4500=300 के लाभ पर

Discussion

7.	Which of the following equations have infinitely many solutions? Choose all answers that apply: −10x−10=−10x−10
Answer» ANSWER: FOLLOW me then i will TELL

7.

Which of the following equations have infinitely many solutions? Choose all answers that apply: −10x−10=−10x−10

Answer»

ANSWER:

FOLLOW me then i will TELL

Discussion

8.	Write the following in exponential form and identify the base and exponent.
Answer» Step-by-step explanation: $6561 = {3}^{8}$ $base \: \: = 3 \\ exponent \: \: = 8$ 2. $7776 = {6}^{5}$ $base \: \: = 6 \\ exponent \: \: = 5$ 3. $( - 16807) ={7}^{5}$ $base \: \: = 7 \\ exponent \: \: = 5$ mark BRAINLIEST ✔︎✔︎✔︎✔︎

8.

Write the following in exponential form and identify the base and exponent.

Answer»

Step-by-step explanation:

$6561 = {3}^{8}$

$base \: \: = 3 \\ exponent \: \: = 8$

2.

$7776 = {6}^{5}$

$base \: \: = 6 \\ exponent \: \: = 5$

3.

$( - 16807) ={7}^{5}$

$base \: \: = 7 \\ exponent \: \: = 5$

mark BRAINLIEST ✔︎✔︎✔︎✔︎

Discussion

9.	10Pr, = 720 find r in given value
Answer» ANSWER: Please make BRAINLEST MASTER =720 ⇒ (10−r)! 10! =720 ⇒ 720 10! =(10−r)! ⇒ 6! 10! =(10−r)! ⇒7×8×9×10=(10−r)! ⇒7×(2×4)×(3×3×2×5)=(10−r)! ⇒2×3×4×5×6×7=(10−r)! ⇒7!=(10−r)! ⇒7=10−r ⇒r=10−7 ⇒ r=3

9.

10Pr, = 720 find r in given value

Answer»

ANSWER:

Please make BRAINLEST MASTER

=720

⇒

(10−r)!

10!

=720

⇒

720

10!

=(10−r)!

⇒

6!

10!

=(10−r)!

⇒7×8×9×10=(10−r)!

⇒7×(2×4)×(3×3×2×5)=(10−r)!

⇒2×3×4×5×6×7=(10−r)!

⇒7!=(10−r)!

⇒7=10−r

⇒r=10−7

⇒

r=3

Discussion

10.	9. यदि a एक सम धन पूर्णांक है, तो बताइये कि संख्या (a-1)(a+ 1) सम है अथवा विषम।8. पूर्णांकों में ऐसी कौन-सा10. संख्या रेखा पर 5 और 7 का योग लिखिए।कानों में से कौन-से कथन सत्य हैं अथवा कौन-से असत्य है ?
Answer» ANSWER: please TELL in English.... Step-by-step EXPLANATION: hope it's a math sum but it is not able to UNDERSTAND...

10.

9. यदि a एक सम धन पूर्णांक है, तो बताइये कि संख्या (a-1)(a+ 1) सम है अथवा विषम।8. पूर्णांकों में ऐसी कौन-सा10. संख्या रेखा पर 5 और 7 का योग लिखिए।कानों में से कौन-से कथन सत्य हैं अथवा कौन-से असत्य है ?

Answer»

ANSWER:

please TELL in English....

Step-by-step EXPLANATION:

hope it's a math sum but it is not able to UNDERSTAND...

Discussion

11.	Find the coordinate of the image of the pointA(3, - 4) when reflected in the linex + y = 2.
Answer» Answer: Can u POST the IMAGE PLS.... Because this question is BASED on that image....

11.

Find the coordinate of the image of the pointA(3, - 4) when reflected in the linex + y = 2.

Answer»

Answer:

Can u POST the IMAGE PLS....

Because this question is BASED on that image....

Discussion

12.	if 8 men can do a pice of work in 15 days, then in 15 day, then in how many days could 20 men do the same work
Answer» Answer: 8×15= 20×x x= 8×15/20 x= 6 DAYS

12.

if 8 men can do a pice of work in 15 days, then in 15 day, then in how many days could 20 men do the same work

Answer»

Answer:

8×15= 20×x

x= 8×15/20

x= 6 DAYS

Discussion

13.	If (A intersect B) is null,(A)=20,n (B)=30.what is the null?
Answer» ANSWER: It MEANS it has no ELEMENT in that PARTICULAR SET

13.

If (A intersect B) is null,(A)=20,n (B)=30.what is the null?

Answer»

ANSWER:

It MEANS it has no ELEMENT in that PARTICULAR SET

Discussion

14.	Write ppf equation for Robinson crusoe and Friday
Answer» Step-by-step EXPLANATION: A Robinson Crusoe economy is a simple framework used to study some fundamental issues in economics.[1] It assumes an economy with one consumer, one producer and two goods. The title "Robinson Crusoe" is a reference to the 1719 novel of the same name authored by Daniel Defoe. As a thought experiment in economics, many international trade economists have found this simplified and idealized version of the story IMPORTANT due to its ability to simplify the complexities of the real WORLD. The implicit assumption is that the study of a one agent economy will provide useful insights into the functioning of a real world economy with many economic agents. This article pertains to the study of consumer behaviour, producer behaviour and equilibrium as a part of microeconomics. In other fields of economics, the Robinson Crusoe economy framework is used for essentially the same thing. For example, in public finance the Robinson Crusoe economy is used to study the various types of public goods and certain aspects of collective benefits.[2] It is used in growth economics to develop growth models for UNDERDEVELOPED or developing countries to embark upon a steady growth path USING techniques of savings and investment.[3]

14.

Write ppf equation for Robinson crusoe and Friday

Answer»

Step-by-step EXPLANATION:

A Robinson Crusoe economy is a simple framework used to study some fundamental issues in economics.[1] It assumes an economy with one consumer, one producer and two goods. The title "Robinson Crusoe" is a reference to the 1719 novel of the same name authored by Daniel Defoe.

As a thought experiment in economics, many international trade economists have found this simplified and idealized version of the story IMPORTANT due to its ability to simplify the complexities of the real WORLD. The implicit assumption is that the study of a one agent economy will provide useful insights into the functioning of a real world economy with many economic agents. This article pertains to the study of consumer behaviour, producer behaviour and equilibrium as a part of microeconomics. In other fields of economics, the Robinson Crusoe economy framework is used for essentially the same thing. For example, in public finance the Robinson Crusoe economy is used to study the various types of public goods and certain aspects of collective benefits.[2] It is used in growth economics to develop growth models for UNDERDEVELOPED or developing countries to embark upon a steady growth path USING techniques of savings and investment.[3]

Discussion

15.	If sec square theata (1+sin theta) ( 1- sin theta )k then the value of k
Answer» $\text{[math]}$ Hope IT helps ❤︎

15.

If sec square theata (1+sin theta) ( 1- sin theta )k then the value of k

Answer»

$\text{[math]}$

Hope IT helps ❤︎

Discussion

16.	In the given figure,find x
Answer» ANSWER: where is a FIGURE............

16.

In the given figure,find x

Answer»

ANSWER:

where is a FIGURE............

Discussion

17.	2x + 3 y = 7 and (a - b) x + (a(a +b) y = 3 a + b - 2*
Answer» ANSWER: y=3 a+b-2 is the RIGHT answer

17.

2x + 3 y = 7 and (a - b) x + (a(a +b) y = 3 a + b - 2*

Answer»

ANSWER:

y=3 a+b-2 is the RIGHT answer

Discussion

18.	8. The difference between the squares of two consecutive number is 31 . find the numbers .please solve my question shortly its urgent, otherwise I will report
Answer» ANSWER: x-y=31 x+y=0 2x=31 x=31/2 y=-31/2

18.

8. The difference between the squares of two consecutive number is 31 . find the numbers .please solve my question shortly its urgent, otherwise I will report

Answer»

ANSWER:

x-y=31

x+y=0

2x=31

x=31/2

y=-31/2

Discussion

19.	Find the value of 7/4 of 168
Answer» Step-by-step explanation: 7/14x168 =1/2x168=84 is the ANSWER of this QUESTION

19.

Find the value of 7/4 of 168

Answer»

Step-by-step explanation:

7/14x168

=1/2x168=84 is the ANSWER of this QUESTION

Discussion

20.	The two angles of a triangle are equal and the third angle is 94*, then one of the equal angles is
Answer» Answer: 86 Step-by-step explanation: 180= 94 + x x= 180-94 x= 86

20.

The two angles of a triangle are equal and the third angle is 94*, then one of the equal angles is

Answer»

Answer:

86

Step-by-step explanation:

180= 94 + x

x= 180-94

x= 86

Discussion

21.	In a garden the number of rows and the number of plants in each row are equal. If there are 33124 plants in the garden , how many plant are there in each row?
Answer» Answer: 182 Step-by-step EXPLANATION: let the no. of rows be X so according to our QUESTION the no. of PLANTS in each row will also be x. Now given TOTAL no. of plants in the garden :- 33124 so if we multiply no. of plants in each row (x) by total no. of rows (x) we will get the total no. of plants in the garden. ∴ $x^{2}$ = 33124 x = 182

21.

In a garden the number of rows and the number of plants in each row are equal. If there are 33124 plants in the garden , how many plant are there in each row?

Answer»

Answer:

182

Step-by-step EXPLANATION:

let the no. of rows be X so according to our QUESTION the no. of PLANTS in each row will also be x.

Now given TOTAL no. of plants in the garden :- 33124

so if we multiply no. of plants in each row (x) by total no. of rows (x) we will get the total no. of plants in the garden.

∴ $x^{2}$ = 33124

x = 182

Discussion

22.	What value should come in no. Series. 4,5,8,15,?
Answer» ANSWER: There are TWO POSSIBLE ANSWERS .

22.

What value should come in no. Series. 4,5,8,15,?

Answer»

ANSWER:

There are TWO POSSIBLE ANSWERS .

Discussion

23.	Which pair of expressions are equivalent
Answer» Answer: 2 EXPRESSIONS are EQUIVALENT, if they have the same VALUE irrespective of the value of the variable(s) in them Step-by-step explanation:

23.

Which pair of expressions are equivalent

Answer»

Answer:

2 EXPRESSIONS are EQUIVALENT, if they have the same VALUE irrespective of the value of the variable(s) in them

Step-by-step explanation:

Discussion

24.	The cost of 2 table and 4 chairs is 3500. The cost of one table double the cost of chair find the cost of a table.
Answer» Answer: 473.5 Step-by-step explanation: X is table y is chairs 2x+4Y=3500 x=2Y substitute x VALUE in the EQUATION 2(2y)+ 4y =3500 4y+4y=3500 8y=3500 y=3500÷8 y=473.5

24.

The cost of 2 table and 4 chairs is 3500. The cost of one table double the cost of chair find the cost of a table.

Answer»

Answer:

473.5

Step-by-step explanation:

X is table

y is chairs

2x+4Y=3500

x=2Y

substitute x VALUE in the EQUATION

2(2y)+ 4y =3500

4y+4y=3500

8y=3500

y=3500÷8

y=473.5

Discussion

25.	Solve for x the quadratic equation x^2-4x+8=0 . Give your answer correct to three significant figures
Answer» $\green{\bold{\underline{ ☆ UPSC-ASPIRANT ☆} }}$ $\red{\bold{\underline{\underline{QUESTION:-}}}}$ Q:-Solve for x the quadratic EQUATION x^2-4 x+8=0 $\huge\tt\underline\blue{<klux>ANSWER</klux> }$ ------>>>>Here is your answer<<<<-------- ➣➣see in the picture above attach for COMPLETE SOLUTION:- HOPE IT HELPS YOU.. _____________________ Thankyou:)

25.

Solve for x the quadratic equation x^2-4x+8=0 . Give your answer correct to three significant figures

Answer»

$\green{\bold{\underline{ ☆ UPSC-ASPIRANT ☆} }}$

$\red{\bold{\underline{\underline{QUESTION:-}}}}$

Q:-Solve for x the quadratic EQUATION x^2-4

x+8=0

$\huge\tt\underline\blue{<klux>ANSWER</klux> }$

------>>>>Here is your answer<<<<--------

➣➣see in the picture above attach for COMPLETE SOLUTION:-

HOPE IT HELPS YOU..

_____________________

Thankyou:)

Discussion

26.	Wrte the successor and predecessor of 2440700
Answer» Step-by-step EXPLANATION: SUCCESSOR is 2440701 predecessor is 2440699

26.

Wrte the successor and predecessor of 2440700

Answer»

Step-by-step EXPLANATION:

SUCCESSOR is 2440701

predecessor is 2440699

Discussion

27.	Please note thatExpress -12 /13 as a ratinal number with numerator 60
Answer» Step-by-step explanation: 12/13 = 12/13 × 5/5 which is equal to 12× 5 and 13× 5 so 12 × 5 will GIVE = 60 (as numerator) and 13 × 5 will give = 65 (as DENOMINATOR) your answer will be = 12/13 = 60/65 hope it helps you PLEASE mark me as brainliest

27.

Please note thatExpress -12 /13 as a ratinal number with numerator 60

Answer»

Step-by-step explanation:

12/13 = 12/13 × 5/5

which is equal to 12× 5 and 13× 5

so 12 × 5 will GIVE = 60 (as numerator)

and 13 × 5 will give = 65 (as DENOMINATOR)

your answer will be = 12/13 = 60/65

hope it helps you

PLEASE mark me as brainliest

Discussion

28.	Exprise the folling liner equation -2x= +3y=6 in the form ax + by + c=o
Answer» $\green{\bold{\underline{ ☆ UPSC-ASPIRANT ☆} }}$ $\red{\bold{\underline{\underline{QUESTION:-}}}}$ express the folling liner equation -2X= +3y=6 in the form ax + by + c=o $\huge\bigstar\huge\tt\underline\red{ᴀɴsᴡᴇʀ }\bigstar$ $➫ - 2x = 3y = 6$ $➫ - 2x - 3y - 6 = 0$ $➫ - (2x + 3y + 6) = 0$ $➫2x + 3y + 6 = 0$ ---->>>>>>Here is your answer<<<<-------- HOPE IT HELPS YOU.. _____________________ Thankyou:)

28.

Exprise the folling liner equation -2x= +3y=6 in the form ax + by + c=o

Answer»

$\green{\bold{\underline{ ☆ UPSC-ASPIRANT ☆} }}$

$\red{\bold{\underline{\underline{QUESTION:-}}}}$

express the folling liner equation -2X= +3y=6 in the form ax + by + c=o

$\huge\bigstar\huge\tt\underline\red{ᴀɴsᴡᴇʀ }\bigstar$

$➫ - 2x = 3y = 6$

$➫ - 2x - 3y - 6 = 0$

$➫ - (2x + 3y + 6) = 0$

$➫2x + 3y + 6 = 0$

---->>>>>>Here is your answer<<<<--------

HOPE IT HELPS YOU..

_____________________

Thankyou:)

Discussion

29.	Write the domain and range of the real function f (x) = x + 1 / x^2 +6x +5
Answer» ANSWER: jshejeiwjwgskwhsjsks

29.

Write the domain and range of the real function f (x) = x + 1 / x^2 +6x +5

Answer»

ANSWER:

jshejeiwjwgskwhsjsks

Discussion

30.	3. If p(x) = 47-3r2 + 21-evaluateVONVerify whether the indicated values of the variable are serves of the polynomi
Answer» ANSWER: SORRY I am very WEAK in MATHS

30.

3. If p(x) = 47-3r2 + 21-evaluateVONVerify whether the indicated values of the variable are serves of the polynomi

Answer»

ANSWER:

SORRY I am very WEAK in MATHS

Discussion

31.	If l parallel to m , then angle 1=angle 2 because they are
Answer» Answer: Any WAY in such FIGURE , always equal ANGLES are corresponding or CO- angles... so angle 1 and 2 may be corresponding or co - angles Step-by-step explanation: hope it HELPS you

31.

If l parallel to m , then angle 1=angle 2 because they are

Answer»

Answer:

Any WAY in such FIGURE , always equal ANGLES are corresponding or CO- angles...

so angle 1 and 2 may be corresponding or co - angles

Step-by-step explanation:

hope it HELPS you

Discussion

32.	2/4 in decimal point
Answer» ANSWER: here is your QUESTION's RIGHT answer 0.5

32.

2/4 in decimal point

Answer»

ANSWER:

here is your QUESTION's RIGHT answer

0.5

Discussion

33.	When a coin is tossed,the probrability of getting head is
Answer» Answer: 1/2 Step-by-step explanation: when a COIN is tossed, only two possibilities. EITHER head or TAIL. Hence, probability of GETTING a head is 1/2

33.

When a coin is tossed,the probrability of getting head is

Answer»

Answer:

1/2

Step-by-step explanation:

when a COIN is tossed, only two possibilities. EITHER head or TAIL. Hence, probability of GETTING a head is 1/2

Discussion

34.	The distance between the points A(c,0) and B(0,-c) is______???fill the blank plss
Answer» Answer: A will be on POSITIVE x-axis and B will be on NEGATIVE y-axis. So a ∆OAB will be formed we can FIND AB by Pythagoras theorem. AB=√2c Step-by-step explanation: PLZ MARK AS BRAINLIST ANSWER

34.

The distance between the points A(c,0) and B(0,-c) is______???fill the blank plss

Answer»

Answer:

A will be on POSITIVE x-axis and B will be on NEGATIVE y-axis. So a ∆OAB will be formed we can FIND AB by Pythagoras theorem. AB=√2c

Step-by-step explanation:

PLZ MARK AS BRAINLIST ANSWER

Discussion

35.	Please help me fill in the blanks for 1-6.
Answer» ANSWER: yo will GET answer in your book formula PLEASE CHECK it

35.

Please help me fill in the blanks for 1-6.

Answer»

ANSWER:

yo will GET answer in your book formula PLEASE CHECK it

Discussion

36.	Add the following associative property 7/38 +17/20 +31/38
Answer» Step-by-step EXPLANATION: *PLEASE* *MARK* *LIKE* *and* *FOLLOW* me

36.

Add the following associative property 7/38 +17/20 +31/38

Answer»

Step-by-step EXPLANATION:

PLEASE MARK LIKE and FOLLOW me

Discussion

37.	Set of the prime numberinfinite or finite
Answer» All PRIMES are finite, but there is no greatest ONE, just as there is no greatest integer or EVEN integer, etc. That there are infinitely many of SOMETHING doesn't REQUIRE that any of them be infinite, or infinity, or greatest.

Discussion

38.	What is hybridisation ?
Answer» Answer: orbital hybridisation (or HYBRIDIZATION) is the CONCEPT of mixing atomic orbitals into NEW hybrid orbitals (with different energies, shapes, ETC., than the component atomic orbitals) SUITABLE for the pairing of electrons to form chemical bonds in valence bond theory. Step-by-step explanation: hope it helps you ❣️ follow me

38.

What is hybridisation ?

Answer»

Answer:

orbital hybridisation (or HYBRIDIZATION) is the CONCEPT of mixing atomic orbitals into NEW hybrid orbitals (with different energies, shapes, ETC., than the component atomic orbitals) SUITABLE for the pairing of electrons to form chemical bonds in valence bond theory.

Step-by-step explanation:

hope it helps you ❣️ follow me

Discussion

39.	The range of data 30,10,5,8,15,60,65
Answer» ANSWER: RANGE = biggest number - SMALLEST number range = 65 - 5 range = 60

39.

The range of data 30,10,5,8,15,60,65

Answer»

ANSWER:

RANGE = biggest number - SMALLEST number

range = 65 - 5

range = 60

Discussion

40.	Heron's formula explanation
Answer» Answer: Heron's formula (sometimes called Hero's formula), named after Hero of Alexandria, gives the area of a TRIANGLE when the LENGTH of all THREE sides are known. Unlike other triangle area FORMULAE, there is no need to calculate ANGLES or other distances in the triangle first. *hope* it *helps* *you*

40.

Heron's formula explanation

Answer»

Answer:

Heron's formula (sometimes called Hero's formula), named after Hero of Alexandria, gives the area of a TRIANGLE when the LENGTH of all THREE sides are known. Unlike other triangle area FORMULAE, there is no need to calculate ANGLES or other distances in the triangle first.

hope it helps you

Discussion

41.	1/a+b+x=1/a+1/b+1/x
Answer» ANSWER: gshshbsgshznhxhxhdinwg nshskmsjdi

41.

1/a+b+x=1/a+1/b+1/x

Answer»

ANSWER:

gshshbsgshznhxhxhdinwg

nshskmsjdi

Discussion

42.	Value of (-9)×8÷2+4
Answer» ANSWER: (-9)×8÷2+4 (-9)×4+4 (-9)×8 -72

42.

Value of (-9)×8÷2+4

Answer»

ANSWER:

(-9)×8÷2+4

(-9)×4+4

(-9)×8

-72

Discussion

43.	राम एक काम 42 दिन में करता है।सीमा एक काम 84 दिन में करती है।मोहनी एक काम 21 दिन में करती है।तीनों मिलकर वहीं काम कितने दिन में करेंगे।It is maths question of army public school plz give answer .
Answer» ANSWER: TOTAL WORK they do is 147

43.

राम एक काम 42 दिन में करता है।सीमा एक काम 84 दिन में करती है।मोहनी एक काम 21 दिन में करती है।तीनों मिलकर वहीं काम कितने दिन में करेंगे।It is maths question of army public school plz give answer .

Answer»

ANSWER:

TOTAL WORK they do is 147

Discussion

44.	Abc ত্রিভুজের AB এবং AC বাহুর মধ্যবিন্দু যথাক্রমে D এবং E; P এবং Q যথাক্রমে CD ও BD এর মধ্যবিন্দু । প্রমান করি যে, BE এবং PQ পরস্পরকে সমদ্বিখণ্ডিত করে
Answer» Step-by-step EXPLANATION: PLEASE CONVERT in ENGLISH

44.

Abc ত্রিভুজের AB এবং AC বাহুর মধ্যবিন্দু যথাক্রমে D এবং E; P এবং Q যথাক্রমে CD ও BD এর মধ্যবিন্দু । প্রমান করি যে, BE এবং PQ পরস্পরকে সমদ্বিখণ্ডিত করে

Answer»

Step-by-step EXPLANATION:

PLEASE CONVERT in ENGLISH

Discussion

45.	BUSINESS MATHEMATICS73nple 4: Simplify22a 2xa xha-5 39a 3 xa 2if a=4
Answer» ANSWER: WRITE QUESTION PROPERLY

45.

BUSINESS MATHEMATICS73nple 4: Simplify22a 2xa xha-5 39a 3 xa 2if a=4

Answer»

ANSWER:

WRITE QUESTION PROPERLY

Discussion

46.	Suppose that P (A/B) = 0.7, P(A) = 0.5 and P(B) = 0.2 then P(B/A) is
Answer» <P>ANSWER: we KNOW that P(B/A)=P(A/B)P(B)/P(A) =(0.7)(0.2)/0.5 =0.14/0.5=0.28

46.

Suppose that P (A/B) = 0.7, P(A) = 0.5 and P(B) = 0.2 then P(B/A) is

Answer»

<P>ANSWER:

we KNOW that P(B/A)=P(A/B)P(B)/P(A)

=(0.7)(0.2)/0.5

=0.14/0.5=0.28

Discussion

47.	The area of a square field is 8281 square find the length of its side
Answer» Answer: let a be the LENGTH of its side area of a SQUARE FIELD =8281 $a^{2}$ =8281 a= $\sqrt[]{8281}$ a=91 therefore,length of its side=91 Step-by-step EXPLANATION:

47.

The area of a square field is 8281 square find the length of its side

Answer»

Answer:

let a be the LENGTH of its side

area of a SQUARE FIELD =8281

$a^{2}$ =8281

a= $\sqrt[]{8281}$

a=91

therefore,length of its side=91

Step-by-step EXPLANATION:

Discussion

48.	Find the quadratic polynomial sum and product of zero are 2/5 and 21
Answer» Answer: 5x^2-2x+105=0 Step-by-step EXPLANATION: QUADRATIC POLYNOMIAL is x^2-(SUM of ROOTS)x+product of roots=0 x^2-2x/5+21=0 taking LCM 5x^2-2x+105=0*5 5x^2-2x+105=0

48.

Find the quadratic polynomial sum and product of zero are 2/5 and 21

Answer»

Answer:

5x^2-2x+105=0

Step-by-step EXPLANATION:

QUADRATIC POLYNOMIAL is

x^2-(SUM of ROOTS)x+product of roots=0

x^2-2x/5+21=0

taking LCM

5x^2-2x+105=0*5

5x^2-2x+105=0

Discussion

49.	Solve this √3x^2-2√2x-2√3=0 by using quadratic formula
Answer» ANSWER: SORRY I don't no answer

49.

Solve this √3x^2-2√2x-2√3=0 by using quadratic formula

Answer»

ANSWER:

SORRY I don't no answer

Discussion

50.	So that points A(-2,3), B(-4,-4), (13,-2), 0(5,5)are the vertes Rombous A, B; C, D ?
Answer» Answer: ANSWER AB= (3−2) 2 +(4+1) 2 = 1+25 = 26 BC= (−2−3) 2 +(3−4) 2 = 25+1 = 26 CD= (−3+2) 2 +(−2−3) 2 = 1+25 = 26 DA= (−3−2) 2 +(−2+1) 2 = 25+1 = 26 AC= (−2−2) 2 +(3+1) 2 = 16+16 = 32 BD= (−3−3) 2 +(−2−4) 2 = 36+36 = 72 Now we can see that AB=BC=CD=DA= 26 units but DAIGONALS AC  =BD => ABCD is a quadrilateral whose all sides are EQUAL but diagonals are not equal. => ABCD is a rhombus, not a square. Area of rhombus ABCD = 2 1 × (Product of diagonals) = 2 1 ×(AC×BD) = 2 1 ×( 3 2× 7 2) =24 sq.units

50.

So that points A(-2,3), B(-4,-4), (13,-2), 0(5,5)are the vertes Rombous A, B; C, D ?

Answer»

Answer:

ANSWER

AB=

(3−2)

2

+(4+1)

2

=

1+25

=

26

BC=

(−2−3)

2

+(3−4)

2

=

25+1

=

26

CD=

(−3+2)

2

+(−2−3)

2

=

1+25

=

26

DA=

(−3−2)

2

+(−2+1)

2

=

25+1

=

26

AC=

(−2−2)

2

+(3+1)

2

=

16+16

=

32

BD=

(−3−3)

2

+(−2−4)

2

=

36+36

=

72

Now we can see that

AB=BC=CD=DA=

26

units but DAIGONALS AC



=BD

=> ABCD is a quadrilateral whose all sides are EQUAL but diagonals are not equal.

=> ABCD is a rhombus, not a square.

Area of rhombus ABCD =

2

1

× (Product of diagonals)

=

2

1

×(AC×BD)

=

2

1

×(

3

2×

7

2)

=24 sq.units

Discussion

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