332354 + Interview Questions in Secondary School in Math

1.	Vilwo33 203-X227331- x 12 x1 = x14 4 3714
Answer» I THINK you must have to WRITE the QUESTION properly and CLEARLY.

Discussion

2.	Find first three terms in the expansion of [2+x(3+4x)]^5 in ascending order
Answer» Answer: Given : [2+x(3+4x) ]^5 slove the BRACKET [2+3x+4x²]^5 Now MULTIPLY 5 by whole value 10+15x+20x² three terms in ascending order are 10 +15x+20x²

2.

Find first three terms in the expansion of [2+x(3+4x)]^5 in ascending order

Answer»

Answer:

Given : [2+x(3+4x) ]^5

slove the BRACKET

[2+3x+4x²]^5

Now MULTIPLY 5 by whole value

10+15x+20x²

three terms in ascending order are

10 +15x+20x²

Discussion

3.	Find the conjugate of (10−2i)(5+3i)/(1+2i)(3−i)
Answer» ANSWER: (10-2i)(5+3i)(1+2i)(3-i) = (56+20i)(5+5i) Step-by-step EXPLANATION: (56+20i)(5+5i) = (180+380i) so, the CONJUGATE of (180+380i) is (180-380i) HOPE it HELPS you ❤️

3.

Find the conjugate of (10−2i)(5+3i)/(1+2i)(3−i)

Answer»

ANSWER:

(10-2i)(5+3i)(1+2i)(3-i) = (56+20i)(5+5i)

Step-by-step EXPLANATION:

(56+20i)(5+5i) = (180+380i)

so, the CONJUGATE of (180+380i) is (180-380i)

HOPE it HELPS you ❤️

Discussion

4.	Hello everyonenow I'm going to ask 2 riddles..let us see who can answer them first.here are the riddles★ What word in the English language does the following: the first two letters signify a male, the first three letters signify a female, the first four letters signify a great, while the entire world signifies a great woman. What is the word? ★ You see a boat filled with people. It has not sunk, but when you look again you don’t see a single person on the boat. Why?
Answer» ANSWER: The correct word the given instruction is Heroine. Explanation: The first TWO letter i.e. 'he' refers to male person, the first 3 letters i.e. 'her' denotes female, the first 4 letter i.e. 'hero' means a great personality while the whole world i.e. heroine is the great woman. THEY ARE ALL MARRIED Step-by-step explanation: are u from kerala please give REPLY in one of my question it is a humble REQUEST please reply

4.

Hello everyonenow I'm going to ask 2 riddles..let us see who can answer them first.here are the riddles★ What word in the English language does the following: the first two letters signify a male, the first three letters signify a female, the first four letters signify a great, while the entire world signifies a great woman. What is the word? ★ You see a boat filled with people. It has not sunk, but when you look again you don’t see a single person on the boat. Why?

Answer»

ANSWER:

The correct word the given instruction is Heroine. Explanation: The first TWO letter i.e. 'he' refers to male person, the first 3 letters i.e. 'her' denotes female, the first 4 letter i.e. 'hero' means a great personality while the whole world i.e. heroine is the great woman.

THEY ARE ALL MARRIED

Step-by-step explanation:

are u from kerala please give REPLY in one of my question it is a humble REQUEST please reply

Discussion

5.	32 and 33 both..........plz
Answer» ANSWER: $y0 \sqrt[71]{7} {1 \times \frac{5}{1} }^{4}$ it is your answer and PLEASE MARK me in BRAIN LIST

5.

32 and 33 both..........plz

Answer»

ANSWER:

$y0 \sqrt[71]{7} {1 \times \frac{5}{1} }^{4}$

it is your answer and PLEASE MARK me in BRAIN LIST

Discussion

6.	214082÷65=???????????
Answer» ANSWER: Exact Form: 214082/65 Decimal Form: 3293.56923076… Mixed Number Form: 3293 37/65 Step-by-step explanation: PLEASE MARK ME AS BRAINLEST

6.

214082÷65=???????????

Answer»

ANSWER:

Exact Form:

214082/65

Decimal Form:

3293.56923076…

Mixed Number Form:

3293 37/65

Step-by-step explanation:

PLEASE MARK ME AS BRAINLEST

Discussion

7.	Nihal forms a cuboid of dimensions 4cm 3cm* 2cm using cubes of dimension 1cm each
Answer» ANSWER: SUPPOSE answer is 4+3+2+1

7.

Nihal forms a cuboid of dimensions 4cm 3cm* 2cm using cubes of dimension 1cm each

Answer»

ANSWER:

SUPPOSE answer is

4+3+2+1

Discussion

8.	3. Reduce 5937480 minutes to week, days, hours and minutes plz help
Answer» Step-by-step explanation: 98958 hours=4123 DAYS and 6 hours =589 WEEKS and 6 hrs I HOPE it HELPS you Mark me as brainliest and follow me

8.

3. Reduce 5937480 minutes to week, days, hours and minutes plz help

Answer»

Step-by-step explanation:

98958 hours=4123 DAYS and 6 hours

=589 WEEKS and 6 hrs

I HOPE it HELPS you

Mark me as brainliest and follow me

Discussion

9.	rahul and neeraj start at the same time from points A and B and travel toward B and A respectively. after they meet , rahul takes 40 minutes to reach B and neeraj takes 1.5 houres to reach A. if rahul spped is 36 kmph, find's neeraj's speed
Answer» Answer: CROSSING each other, they take x seconds and y seconds to reach B and A respectively, P's speed:Q's speed = ?y:?x Rahul's speed:Neeraj's speed = ?(1.560):?40 = ?9:?4 = 3:2 Neeraj's speed = 362/3 = 24 kmph Step-by-step EXPLANATION: Hope this helps you pls mark me the brainliest

9.

rahul and neeraj start at the same time from points A and B and travel toward B and A respectively. after they meet , rahul takes 40 minutes to reach B and neeraj takes 1.5 houres to reach A. if rahul spped is 36 kmph, find's neeraj's speed

Answer»

Answer:

CROSSING each other, they take x seconds and y seconds to reach B and A respectively,

P's speed:Q's speed = ?y:?x Rahul's speed:Neeraj's speed

= ?(1.5*60):?40

= ?9:?4

= 3:2 Neeraj's speed

= 36*2/3

= 24 kmph

Step-by-step EXPLANATION:

Hope this helps you pls mark me the brainliest

Discussion

10.	if the coordinates of two points p and q are (2, -3) and (-6, 5),then the value of (x- coordinate of p) - (x-coordinate of Q) is
Answer» ANSWER The (x- coordinate of p) is 2 in ( 2 , -3 ) The (x-coordinate of Q) is -6 in ( -6 , 5 ) ......,........................................................................ MATE plz mark me as Brainalist if you are satisfied with my answer.... also THANKS my answer...

10.

if the coordinates of two points p and q are (2, -3) and (-6, 5),then the value of (x- coordinate of p) - (x-coordinate of Q) is

Answer»

ANSWER

The (x- coordinate of p) is 2 in ( 2 , -3 )

The (x-coordinate of Q) is -6 in ( -6 , 5 )

......,........................................................................

MATE plz mark me as Brainalist if you are satisfied with my answer.... also THANKS my answer...

Discussion

11.	Pls help me solve the attached question
Answer» ANSWER: WAIT a MINUTE I will KEEP a PHOTO

11.

Pls help me solve the attached question

Answer»

ANSWER:

WAIT a MINUTE I will KEEP a PHOTO

Discussion

12.	PterXERCERCISE 65sind the maximum and minimum values, if any of the following functziven by(i) f(x) = (2-1) + 3(i) f() = -(x-1) + 10(i) () = 9+12+2(iv) g) = +
Answer» ANSWER: 195= (2-3) 3+5 Step-by-step explanation: 195= (2-3) 3+5

12.

PterXERCERCISE 65sind the maximum and minimum values, if any of the following functziven by(i) f(x) = (2-1) + 3(i) f() = -(x-1) + 10(i) () = 9+12+2(iv) g) = +

Answer»

ANSWER:

195= (2-3) 3+5

Step-by-step explanation:

195= (2-3) 3+5

Discussion

13.	(ii) Check whether -3 and 3 are the zeroes of the polynomial x^2-9
Answer» Answer: _________________ Put the VALUE of zeros in given polynomial : p ( x ) = x^2 - 9 where x is zero . _________________ ( i ) p ( -3 ) = -3^2 - 9 = 9 - 9 = 0 ( II ) p ( 3 ) = 3^2 - 9 = 9 - 9 = 0 Hence , it checked & both of the number ( -3 , 3 ) are the zeroes of the polynomial x^2 - 9 . •°•°•°_________________________________°•°•°

13.

(ii) Check whether -3 and 3 are the zeroes of the polynomial x^2-9

Answer»

Answer:

_________________

Put the VALUE of zeros in given polynomial :

p ( x ) = x^2 - 9

where x is zero .

_________________

( i ) p ( -3 ) = -3^2 - 9

= 9 - 9

= 0

( II ) p ( 3 ) = 3^2 - 9

= 9 - 9

= 0

Hence , it checked & both of the number ( -3 , 3 ) are the zeroes of the polynomial x^2 - 9 .

•°•°•°_________________________________°•°•°

Discussion

14.	Find the value of log25 log 27
Answer» PLZZ MARK me as BRAINLIEST

14.

Find the value of log25 log 27

Answer»

PLZZ MARK me as BRAINLIEST

Discussion

15.	A florist has 144 roses and 312 lilies. He makes separate bunches of roses and lilies having equal number of flowers in each bunch. What is the greatest number of flowers the florist can have in each bunch?
Answer» Answer: 12 ROSES and 17 roses hope this ans HELPS you pls mark me as BRAINLIST ty

15.

A florist has 144 roses and 312 lilies. He makes separate bunches of roses and lilies having equal number of flowers in each bunch. What is the greatest number of flowers the florist can have in each bunch?

Answer»

Answer:

12 ROSES and 17 roses

hope this ans HELPS you

pls mark me as BRAINLIST

ty

Discussion

16.	In a pack of 52 playing card. what is the percentage of black cards in colour.
Answer» ANSWER: SUPPOSE the answer is 0.52

16.

In a pack of 52 playing card. what is the percentage of black cards in colour.

Answer»

ANSWER:

SUPPOSE the answer

is 0.52

Discussion

17.	Practice Set 2.2ТрmChoose the correct alternative.(1) In the adjoining figure, if line m \| line nand line p is a transversal then find x.(A) 135 (B) 90° (C) 45° () 40°
Answer» can you PLEASE UPLOAD FULL QUESTION

Discussion

18.	Properties of parallelogram
Answer» Step-by-step EXPLANATION: Opposite sides of a parallelogram are parallel. ... Opposite sides of a parallelogram are congruent. ... Opposite ANGLES of a parallelogram are congruent. .. . Consecutive angles of a parallelogram are supplementary. .. If a parallelogram has 1 right ANGLE, then it has 4 right angles. please mark me as brainliest

18.

Properties of parallelogram

Answer»

Step-by-step EXPLANATION:

Opposite sides of a parallelogram are parallel. ...
Opposite sides of a parallelogram are congruent. ...
Opposite ANGLES of a parallelogram are congruent. ..
. Consecutive angles of a parallelogram are supplementary. ..
If a parallelogram has 1 right ANGLE, then it has 4 right angles.

please mark me as brainliest

Discussion

19.	आप तीन संख्याओं 7. 10 और 12 से संख्याओं वाले (चर नहीं) जितने व्यंजक बनासकते हैं बनाइए। एक संख्या का एक से अधिक बार प्रयोग नहीं किया जाना चाहिए।केवल योग, व्यवकलन (घटाना) और गुणन संक्रियाओं का ही प्रयोग करें। (उदाहरणार्थ10+7-12)
Answer» Answer: BHAI QUESTION PUCH rahe ho to acche s pucho question puchre ho ol usme BHI bol ese rahe ho jaise ki aap hame ANYTIME question ka answer batane k rupees d rahe ho . Agar kuch puchna h to tameej s pucho akad dikhane ki jarurat nahi h.

19.

आप तीन संख्याओं 7. 10 और 12 से संख्याओं वाले (चर नहीं) जितने व्यंजक बनासकते हैं बनाइए। एक संख्या का एक से अधिक बार प्रयोग नहीं किया जाना चाहिए।केवल योग, व्यवकलन (घटाना) और गुणन संक्रियाओं का ही प्रयोग करें। (उदाहरणार्थ10+7-12)

Answer»

Answer:

BHAI QUESTION PUCH rahe ho to acche s pucho question puchre ho ol usme BHI bol ese rahe ho jaise ki aap hame ANYTIME question ka answer batane k rupees d rahe ho . Agar kuch puchna h to tameej s pucho akad dikhane ki jarurat nahi h.

Discussion

20.	Solve this 3 problems from algebraPlease write step by step explanation of the questions. The most deserving answer will be rated 5 stars, Thanked and will me marked as the brainliest and I will also follow you.
Answer» ANSWER: it your ANSWERS HAPPY now that you WANT

20.

Solve this 3 problems from algebraPlease write step by step explanation of the questions. The most deserving answer will be rated 5 stars, Thanked and will me marked as the brainliest and I will also follow you.

Answer»

ANSWER:

it your ANSWERS HAPPY now that you WANT

Discussion

21.	The biggest chord in acircle is........
Answer» ANSWER : the BIGGEST CHORD in a CIRCLE is DIAMETER

21.

The biggest chord in acircle is........

Answer»

ANSWER : the BIGGEST CHORD in a CIRCLE is DIAMETER

Discussion

22.	Using identities expand (5x/2+3/4)whole cube
Answer» ANSWER: we KNOW that (a+b) ³ = a³+b³ + 3a²b + 3ab² putting it in FORMULA we GET (5x/2) ³+(3/4) ³+3(5x/2) ²(3/4) + 3 (5x/2) (3/4) ² = 125x³/8 + 27/64 + 3× (25x²/4) ×3/4 + 3× 5x/2×(9/16) = 125x³/8+27/64 + 225x²/4 + 135x/32 is answer

22.

Using identities expand (5x/2+3/4)whole cube

Answer»

ANSWER:

we KNOW that (a+b) ³ = a³+b³ + 3a²b + 3ab²

putting it in FORMULA we GET

(5x/2) ³+(3/4) ³+3(5x/2) ²(3/4) + 3 (5x/2) (3/4) ²

= 125x³/8 + 27/64 + 3× (25x²/4) ×3/4 + 3× 5x/2×(9/16)

= 125x³/8+27/64 + 225x²/4 + 135x/32 is answer

Discussion

23.	What is the meaning of -8 if +2 means 2 blocks north
Answer» ANSWER: EIGHT BLOCKS SOUTH ............

23.

What is the meaning of -8 if +2 means 2 blocks north

Answer»

ANSWER:

EIGHT BLOCKS SOUTH ............

Discussion

24.	Sec square theta - tan square theta equal to 1
Answer» Answer: TO PROVE: 1 + Tan²θ = Sec²θ Tan θ = (Sin θ) / (COS θ) ∴ Tan²θ = (Sin θ / Cos θ)² ..... (1) L.H.S = 1 + Tan²θ (substituting from equation 1 we GET) L.H.S. = 1 + (sin θ/cos θ)² ∴ L.H.S = 1 + (Sin²θ / Cos²θ) ∴ L.H.S. = (Cos²θ + Sin²θ) / Cos²θ But, we KNOW that - Cos²θ + Sin²θ = 1 ∴ L.H.S. = 1 / Cos²θ ∵ 1 / Cosθ = Secθ ∴ L.H.S. = Sec²θ = R.H.S. as LHS = RHS... hence prooved 1 + Tan²θ = Sec²θ Step-by-step explanation: Hope this helps you pls MARK me the brainliest

24.

Sec square theta - tan square theta equal to 1

Answer»

Answer:

TO PROVE: 1 + Tan²θ = Sec²θ

Tan θ = (Sin θ) / (COS θ)

∴ Tan²θ = (Sin θ / Cos θ)² ..... (1)

L.H.S = 1 + Tan²θ

(substituting from equation 1 we GET)

L.H.S. = 1 + (sin θ/cos θ)²

∴ L.H.S = 1 + (Sin²θ / Cos²θ)

∴ L.H.S. = (Cos²θ + Sin²θ) / Cos²θ

But, we KNOW that - Cos²θ + Sin²θ = 1

∴ L.H.S. = 1 / Cos²θ

∵ 1 / Cosθ = Secθ

∴ L.H.S. = Sec²θ = R.H.S.

as LHS = RHS... hence prooved

1 + Tan²θ = Sec²θ

Step-by-step explanation:

Hope this helps you pls MARK me the brainliest

Discussion

25.	1) A lock on a fence door has a 4 digit combination. Each digit can be any number between 0 – 9. The only restriction is that all 4 characters cannot be the same (e.g. 1111, 2222, 3333, etc.). How many combinations are possible? A) 504 B) 512 C) 10000 D) 9990
Answer» ANSWER: HEY!! will you be my FRIEND..... PLS REPLY

25.

1) A lock on a fence door has a 4 digit combination. Each digit can be any number between 0 – 9. The only restriction is that all 4 characters cannot be the same (e.g. 1111, 2222, 3333, etc.). How many combinations are possible? A) 504 B) 512 C) 10000 D) 9990

Answer»

ANSWER:

HEY!!

will you be my FRIEND.....

PLS REPLY

Discussion

26.	Using identity expand 5x by 2 +3 by 4
Answer» ANSWE...............................

26.

Using identity expand 5x by 2 +3 by 4

Answer»

ANSWE...............................

Discussion

27.	Find the measure ofeach angle of a regular Pentagon
Answer» Answer: The TOTAL of the internal angles of any polygon having 'n' sides is (n-2)180° Accordingly, for a Pentagon, the total of the internal angles is (5–2)180° = 3*180° = 540°. In case of a REGULAR Pentagon, all internal angles are EQUAL. Hence, divide the total above by 5. 540°/5 = 108° Hence, the measure of each internal angle of a regular Pentagon is 108°.

27.

Find the measure ofeach angle of a regular Pentagon

Answer»

Answer:

The TOTAL of the internal angles of any polygon having 'n' sides is (n-2)*180°

Accordingly, for a Pentagon, the total of the internal angles is (5–2)*180° = 3*180° = 540°.

In case of a REGULAR Pentagon, all internal angles are EQUAL. Hence, divide the total above by 5.

540°/5 = 108°

Hence, the measure of each internal angle of a regular Pentagon is 108°.

Discussion

28.	The product of given integers is (_3) × (+5)
Answer» ANSWER: -15 Step-by-step EXPLANATION: if we multiply a NEGATIVE no.to a POSITIVE ,the answer will be in negative . -3×(+5) = -15

28.

The product of given integers is (_3) × (+5)

Answer»

ANSWER:

-15

Step-by-step EXPLANATION:

if we multiply a NEGATIVE no.to a POSITIVE ,the answer will be in negative .

-3×(+5) = -15

Discussion

29.	Median of first six whole numbers
Answer» Answer: 0, 1 ,2 ,3 ,4, 5,is FIRST six whole number. Step-by-step explanation: PLS mark as brainliest. PLEASE like and follow. .

29.

Median of first six whole numbers

Answer»

Answer:

0, 1 ,2 ,3 ,4, 5,is FIRST six whole number.

Step-by-step explanation:

PLS mark as brainliest.

PLEASE like and follow. .

Discussion

30.	The simplified form of (3+√12)-√12 is_________
Answer» (3+√12)-√12 3+√12-√12 3

30.

The simplified form of (3+√12)-√12 is_________

Answer»

(3+√12)-√12

3+√12-√12

3

Discussion

31.	A shopkeeper earns a profit of $ 20 by selling a notebook and incurs a loss of $ 5 by selling a pen. On a particular day, the shopkeeper sold 6 notebooks and incured a loss of $ 150. How many pens did the shopkeeper sell that day? Find his net profit /loss
Answer» ANSWER: TOTAL answer will be 54 NOTEBOOK

31.

A shopkeeper earns a profit of $ 20 by selling a notebook and incurs a loss of $ 5 by selling a pen. On a particular day, the shopkeeper sold 6 notebooks and incured a loss of $ 150. How many pens did the shopkeeper sell that day? Find his net profit /loss

Answer»

ANSWER:

TOTAL answer will be 54 NOTEBOOK

Discussion

32.	What is meaning of blowing
Answer» ANSWER: (of wind) move CREATING an AIR current. "a cold breeze was BLOWING in off the sea"

32.

What is meaning of blowing

Answer»

ANSWER:

(of wind) move CREATING an AIR current.

"a cold breeze was BLOWING in off the sea"

Discussion

33.	Find the equation of the median from vertex A in triangle ABC, if the coordinates of the vertices are A(-3, -1), B(3, 5), and C(7, -3)
Answer» ANSWER: x-4y-1=0 Step-by-step explanation: FIND midpoint of LINE BC and find line equation using y - (y COORDINATE of any one point)=slope of line(x - (x coordinate of any one point)) y-(-1)=(1/4)(x-(-3)) x-4y-1=0

33.

Find the equation of the median from vertex A in triangle ABC, if the coordinates of the vertices are A(-3, -1), B(3, 5), and C(7, -3)

Answer»

ANSWER:

x-4y-1=0

Step-by-step explanation:

FIND midpoint of LINE BC

and find line equation using

y - (y COORDINATE of any one point)=slope of line(x - (x coordinate of any one point))

y-(-1)=(1/4)(x-(-3))

x-4y-1=0

Discussion

34.	The length and breadth of a floor of a room are 12m and 15m ,respectively. Find the number of square tiles of 60 cm to pave the floor of the room
Answer» Area=12×15m=180m No. of TILES = 180×100/60 = 300 tiles ......HOPE it HELPS you!!!!!!!!!

34.

The length and breadth of a floor of a room are 12m and 15m ,respectively. Find the number of square tiles of 60 cm to pave the floor of the room

Answer»

Area=12×15m=180m

No. of TILES = 180×100/60 = 300 tiles ......HOPE it HELPS you!!!!!!!!!

Discussion

35.	Let r is in the realtion from set A to set B then
Answer» Step-by-step EXPLANATION: R is in the REALTION from SET A to set B

35.

Let r is in the realtion from set A to set B then

Answer»

Step-by-step EXPLANATION:

R is in the REALTION from SET A to set B

Discussion

36.	THE PRODUCT OF TWO RATIONAL NUMBER IS -20/9 IF ONE OF THE OTHER IS 4 FIND THE OTHER
Answer» ANSWER: 1 we DIVIDE 4÷20/9 the answer WIL 5

36.

THE PRODUCT OF TWO RATIONAL NUMBER IS -20/9 IF ONE OF THE OTHER IS 4 FIND THE OTHER

Answer»

ANSWER:

1 we DIVIDE 4÷20/9 the answer WIL 5

Discussion

37.	What is the producer of 2789
Answer» ANSWER: MATE that is not PRODUCER that is PREDECESSOR that's the answer is 2790

37.

What is the producer of 2789

Answer»

ANSWER:

MATE that is not PRODUCER that is PREDECESSOR that's the answer is 2790

Discussion

38.	From the rough graphs of the lines x = 4 and y = 3with the same coordinate axes, find the distance oftheir point of intersection from the origin by usingPythagoras' theoremClass-9
Answer» ANSWER: PLZZZZZZ FOLLOW me or MARK as BRAINLIEST

38.

From the rough graphs of the lines x = 4 and y = 3with the same coordinate axes, find the distance oftheir point of intersection from the origin by usingPythagoras' theoremClass-9

Answer»

ANSWER:

PLZZZZZZ FOLLOW me or MARK as BRAINLIEST

Discussion

39.	What isthe answer of (197*203)using identity
Answer» Here are some IDENTITIES useful in solving Question LIKE above (one) : $\bullet \: \rm(a + b)(a + b) = {a}^{2} + 2ab + {b}^{2}\\ \bullet \: \rm (a - b)(a - b) = {a}^{2} - 2ab + {b}^{2} \\ \small\bullet \: \rm (a + x)(a + y) = {(a)}^{2} + (x + y)a + xy \\ \bullet \: \rm (a - b)(a + b) = {(a)}^{2} - {(b)}^{2} \\ \small\bullet \: \rm(a + b)(a + b)(a + b) = {a}^{3} + {b}^{3} + {3a}^{2} b + {3ab}^{2} \\ \small\bullet \: \rm(a - b)(a - b)(a - b) = {a}^{3} - {b}^{3} - 3ab(a - b)$ Now, SIMPLIFYING the (GIVEN) EXPRESSION as : $\huge \dag \: \: \: \tt197 \times 203 \\ \\ \large \to \: \sf(200 - 3) \times (200 + 3) \\ \\ \mapsto \text{Here, This expression is in form of }\\ \tt{(a + b)(a - b)}. \\ \\ \hookrightarrow \text{ Thus, } \tt{ {4}^{th} } \text{ identity is applicable, i.e.}\\ \: \: \boxed{ \tt {a}^{2} - {b}^{2} \: \: \: }\\ \\ \Huge \to \: \sf {(200)}^{2} - {(3)}^{2} \\ \\ \Huge \to \: \: \sf40000 - 9 \\ \\ \Huge \to \: \: \sf \red{39991}$ Hence, 197 × 203 = 39991

39.

What isthe answer of (197*203)using identity

Answer»

Here are some IDENTITIES useful in solving Question LIKE above (one) :

$\bullet \: \rm(a + b)(a + b) = {a}^{2} + 2ab + {b}^{2}\\ \bullet \: \rm (a - b)(a - b) = {a}^{2} - 2ab + {b}^{2} \\ \small\bullet \: \rm (a + x)(a + y) = {(a)}^{2} + (x + y)a + xy \\ \bullet \: \rm (a - b)(a + b) = {(a)}^{2} - {(b)}^{2} \\ \small\bullet \: \rm(a + b)(a + b)(a + b) = {a}^{3} + {b}^{3} + {3a}^{2} b + {3ab}^{2} \\ \small\bullet \: \rm(a - b)(a - b)(a - b) = {a}^{3} - {b}^{3} - 3ab(a - b)$

Now,

SIMPLIFYING the (GIVEN) EXPRESSION as :

$\huge \dag \: \: \: \tt197 \times 203 \\ \\ \large \to \: \sf(200 - 3) \times (200 + 3) \\ \\ \mapsto \text{Here, This expression is in form of }\\ \tt{(a + b)(a - b)}. \\ \\ \hookrightarrow \text{ Thus, } \tt{ {4}^{th} } \text{ identity is applicable, i.e.}\\ \: \: \boxed{ \tt {a}^{2} - {b}^{2} \: \: \: }\\ \\ \Huge \to \: \sf {(200)}^{2} - {(3)}^{2} \\ \\ \Huge \to \: \: \sf40000 - 9 \\ \\ \Huge \to \: \: \sf \red{39991}$

Hence,

197 × 203 = 39991

Discussion

40.	Verify a-(-b) =a+b for a =113,b=207.
Answer» ANSWER: SEE the attachment Step-by-step EXPLANATION:

40.

Verify a-(-b) =a+b for a =113,b=207.

Answer»

ANSWER:

SEE the attachment

Step-by-step EXPLANATION:

Discussion

41.	A symbol placed before the symbol of a greater value is
Answer» Answer: The greater than symbol is > Step-by-step EXPLANATION: So, 9>7 is READ as '9 is greater than 7'. The LESS than symbol is <.>

41.

A symbol placed before the symbol of a greater value is

Answer»

Answer:

The greater than symbol is >

Step-by-step EXPLANATION:

So, 9>7 is READ as '9 is greater than 7'. The LESS than symbol is <.>

Discussion

42.	Long division of 120,144,204
Answer» 》 It is *the* *answer《》Hope* it *helps*《

42.

Long division of 120,144,204

Answer»

》 It is the answer《

》Hope it helps《

Discussion

43.	IF (-1,-3) IS A SOLUTION OF THE EQUATION 3X-2 Y=P THEN FIND THE VALUE OF P
Answer» ANSWER: x=-1 y=-3 3(-1)-(-2)(-3)=p -3-6=p -9=P

43.

IF (-1,-3) IS A SOLUTION OF THE EQUATION 3X-2 Y=P THEN FIND THE VALUE OF P

Answer»

ANSWER:

x=-1

y=-3

3(-1)-(-2)(-3)=p

-3-6=p

-9=P

Discussion

44.	R s aggral page no 553 lesson 14
Answer» ANSWER: so WAHT we have to do ( U WANT to KNOW the answer)?

44.

R s aggral page no 553 lesson 14

Answer»

ANSWER:

so WAHT we have to do ( U WANT to KNOW the answer)?

Discussion

45.	WE HAVE TO DIVIDE 100 BY 10 20 2 AND 5 SO ONLY WE HAVE TO TO DIVIDE 100 3 TIME
Answer» Answer: no we can DIVIDE it divide it according to our CHOICE...like by dividing it in 10 will not give any REMAINDER..

45.

WE HAVE TO DIVIDE 100 BY 10 20 2 AND 5 SO ONLY WE HAVE TO TO DIVIDE 100 3 TIME

Answer»

Answer:

no we can DIVIDE it divide it according to our CHOICE...like by dividing it in 10 will not give any REMAINDER..

Discussion

46.	Arrange rational number in ascending order -3/7,-3/2,-3/4
Answer» Answer: -3/2<-3/4<-3/7 Step-by-step explanation: PLEASE MARK me as the brainliest

46.

Arrange rational number in ascending order -3/7,-3/2,-3/4

Answer»

Answer:

-3/2<-3/4<-3/7

Step-by-step explanation:

PLEASE MARK me as the brainliest

Discussion

47.	Solve by Quadratic Formula 3x square = -11 x - 10
Answer» Answer: 10±√406. Explanation: 3x2 −10x+5=0. It's in the FORM of. ax2+bx+c=0. COMPARING TWO EQUATIONS. a=3; b=−10; c=5.

47.

Solve by Quadratic Formula 3x square = -11 x - 10

Answer»

Answer:

10±√406. Explanation: 3x2 −10x+5=0. It's in the FORM of. ax2+bx+c=0. COMPARING TWO EQUATIONS. a=3; b=−10; c=5.

Discussion

48.	If the percentage of red pencils in a set 48
Answer» Answer: SEND full answer DEAR . than I answer UR QUESTION.......

48.

If the percentage of red pencils in a set 48

Answer»

Answer:

SEND full answer DEAR .

than I answer UR QUESTION.......

Discussion

49.	Find the zeros of the polynomial 2x square - 3 + 5x and verify the relation between the zero and coefficient
Answer» ANSWER: SPA in the world and in a trophic LEVELS can you PLEASE let me call me again as your hand thumb and index of removing the current status ok SIR I

49.

Find the zeros of the polynomial 2x square - 3 + 5x and verify the relation between the zero and coefficient

Answer»

ANSWER:

SPA in the world and in a trophic LEVELS can you PLEASE let me call me again as your hand thumb and index of removing the current status ok SIR I

Discussion

50.	Which of the following is the product of 7/8 and 4/3?
Answer» ANSWER: $\frac{7}{6}$ Step-by-step EXPLANATION: $\frac{7}{8} \times \frac{4}{3} = \frac{28}{24}$ $\frac{28}{24} = \frac{7}{6}$ HOPE it HELPS : )

50.

Which of the following is the product of 7/8 and 4/3?

Answer»

ANSWER:

$\frac{7}{6}$

Step-by-step EXPLANATION:

$\frac{7}{8} \times \frac{4}{3} = \frac{28}{24}$

$\frac{28}{24} = \frac{7}{6}$

HOPE it HELPS : )

Discussion

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