332354 + Interview Questions in Secondary School in Math

1.	Find the area of the quadrilateral whose vertices are (-1,5),(2,-3),(5,1),(6,9) taken in order.
Answer» Answer: 36 sq.units Step-by-step explanation: 1-draw a QUADRILATERAL with the given vertices 2-join ac 3-find the area of TRIANGLES abc and adc 4-add both areas where area of triangle abc(18sq.units) & area of triangle adc(18sq.uints) 5- area of quad .abcd will be 36 sq units

1.

Find the area of the quadrilateral whose vertices are (-1,5),(2,-3),(5,1),(6,9) taken in order.

Answer»

Answer:

36 sq.units

Step-by-step explanation:

1-draw a QUADRILATERAL with the given vertices

2-join ac

3-find the area of TRIANGLES abc and adc

4-add both areas where area of triangle abc(18sq.units) & area of triangle adc(18sq.uints)

5- area of quad .abcd will be 36 sq units

Discussion

2.	Set A - set B is equal to
Answer» TWO sets A and B are said to be equal if all the elements of SET A are in set B and vice versa. The symbol to denote an equal set is =. A = B MEANS set A is equal to set B and set B is equal to set A. Here, set A and set B are equal sets.

2.

Set A - set B is equal to

Answer»

TWO sets A and B are said to be equal if all the elements of SET A are in set B and vice versa. The symbol to denote an equal set is =. A = B MEANS set A is equal to set B and set B is equal to set A. Here, set A and set B are equal sets.

Discussion

3.	The collection of all difficult question in the chapter on sets
Answer» Step-by-step EXPLANATION: this is your ANS. THX you for TELLING this Q.

3.

The collection of all difficult question in the chapter on sets

Answer»

Step-by-step EXPLANATION:

this is your ANS. THX you for TELLING this Q.

Discussion

4.	In international number system name a.5035472 b.279453081
Answer» ANSWER: a. five million thirty five thousand four hundred seventy TWO. b. two hundred seventy NINE million four hundred fifty three thousand eighty one .

4.

In international number system name a.5035472 b.279453081

Answer»

ANSWER:

a. five million thirty five thousand four hundred seventy TWO.

b. two hundred seventy NINE million four hundred fifty three thousand eighty one .

Discussion

5.	Two numbers differ by 4. The product of the two numbers is 221. What are the numbers?
Answer» ANSWER: let the number x and y x - y = 4 \\ XY = 221 \\ x = \FRAC{221}{y} \\ \frac{221}{y} - y = 4 \\ 221 - {y}^{2} = 4Y \\ - {y}^{2} - 4y + 221 = 0 \\ {y}^{2} + 4y - 221 = 0 \\ {y}^{2} - 17y + 13y - 221 = 0 \\ y(y - 17) + 13(y - 17) = 0 \\ (y + 13)(y - 17) = 0 \\ y = - 13 \\ y = 17 \\ PUT these values of y into any of the equation. xy= 221 x = \frac{221}{ - 13} = - 17 \\ x = \frac{221}{17 } = 13 Step-by-step explanation:

5.

Two numbers differ by 4. The product of the two numbers is 221. What are the numbers?

Answer»

ANSWER:

let the number x and y

x - y = 4 \\ XY = 221 \\ x = \FRAC{221}{y} \\ \frac{221}{y} - y = 4 \\ 221 - {y}^{2} = 4Y \\ - {y}^{2} - 4y + 221 = 0 \\ {y}^{2} + 4y - 221 = 0 \\ {y}^{2} - 17y + 13y - 221 = 0 \\ y(y - 17) + 13(y - 17) = 0 \\ (y + 13)(y - 17) = 0 \\ y = - 13 \\ y = 17 \\

PUT these values of y into any of the equation.

xy= 221

x = \frac{221}{ - 13} = - 17 \\ x = \frac{221}{17 } = 13

Step-by-step explanation:

Discussion

6.	the distance between the school and home of a student is 1 km 235m. everyday be walks both ways. find the total distance covered in 15working days.
Answer» Step-by-step explanation: Everday WALKED distance= 1 km 235 m×2 =1235 m. ×2 =2470m. So the distance walked in 15 working DAYS =*2470×15 =37050m* =37 km 50 m

6.

the distance between the school and home of a student is 1 km 235m. everyday be walks both ways. find the total distance covered in 15working days.

Answer»

Step-by-step explanation:

Everday WALKED distance= 1 km 235 m×2 =1235 m. ×2

=2470m.

So the distance walked in 15 working DAYS

=2470×15

=37050m

=37 km 50 m

Discussion

7.	In a triangle ABC the length of side BC is295 cm. If the length of side AB is a perfectsquare, then the length of side AC is a powerof 2, and the length of side AC is twice thelength of side AB. Determine the perimeter(in cm) of the triangle.[IIFT - 2010](1) 343(2) 487(3) 1063(4) None of these
Answer» 1063 cm is the perimeter of the triangle. Step-by-step explanation: Let, LENGTH of side AB = $2^{k - 1}$ so, Length of side AC = $2^{k}$ (∵length of side AC is POWER of 2 and TWICE the length of side AB) Given that, BC = 295 cm Now, The power of 2 that would fulfill these condition would be; 256 and 512, AB = 256 (2^8(9 -1)) AC = 256 * 2 = 512 (256 is 2^9) ∵ The perimeter of the triangle = SUM of all sides = 256 + 295 + 512 = 1063 cm Thus, 1063 cm is the perimeter of the triangle. Learn more: Perimeter of the Triangle brainly.in/question/36704084

7.

In a triangle ABC the length of side BC is295 cm. If the length of side AB is a perfectsquare, then the length of side AC is a powerof 2, and the length of side AC is twice thelength of side AB. Determine the perimeter(in cm) of the triangle.[IIFT - 2010](1) 343(2) 487(3) 1063(4) None of these

Answer»

1063 cm is the perimeter of the triangle.

Step-by-step explanation:

Let,

LENGTH of side AB = $2^{k - 1}$

so,

Length of side AC = $2^{k}$ (∵length of side AC is POWER of 2 and TWICE the length of side AB)

Given that,

BC = 295 cm

Now,

The power of 2 that would fulfill these condition would be;

256 and 512,

AB = 256 (2^8(9 -1))

AC = 256 * 2 = 512 (256 is 2^9)

∵ The perimeter of the triangle = SUM of all sides

= 256 + 295 + 512

= 1063 cm

Thus, 1063 cm is the perimeter of the triangle.

Learn more: Perimeter of the Triangle

brainly.in/question/36704084

Discussion

8.	P(x)=x2+4x-21 relation between zeroes
Answer» REFER TO THE ATTACHMENT FOR THE ANSWER

8.

P(x)=x2+4x-21 relation between zeroes

Answer»

REFER TO THE ATTACHMENT FOR THE ANSWER

Discussion

9.	solve The area of a rectangular plotis 528 m. The length of the plot in metres) is one more than twice its breadth We need to find the length and breadth of the plot by using the quadratic formula
Answer» Step-by-step explanation: HEY mate *here* *let* *the* *length* be x *and* *breadth* be y *then* *area* = *length* **breadth* = XY *thus* *xy=* 528 *now* *given* *length* is *two* *more* *than* *twice* *the* *breadth* it *MEANS* x = 2y +2 *now* *PUTTING* x =. *2y+1. in the* *first* *CONDITION, we get* (*2y+2) y = 528 => *2y^2+2y= 528 => 2y^2+2y-528= 0 => 2y^2+ 24y-22y-528= 0 => 2y(y+12)-22(y+12)=0 => (y+12)(2y -22) so y= -12. ( or) 11 then* *length* = 22+2= *24m* *and* *breadth* = *22m* *hope* it *helps* *there* *was* *one* *mistake* in *the* *question* *that* *breadth* *should* be *two* *more* *than* *twice* *the* *length* so *don't* be *confused* *hope* it *helps* ✌ *mark* me as a *bainlist* *and* *follow* me *too*

9.

solve The area of a rectangular plotis 528 m. The length of the plot in metres) is one more than twice its breadth We need to find the length and breadth of the plot by using the quadratic formula

Answer»

Step-by-step explanation:

HEY mate

here

let the length be x

and breadth be y

then

area = length **breadth*

= XY

thus

xy= 528

now

given

length is two more than twice the breadth

it MEANS

x = 2y +2

now

PUTTING x =. 2y+1. in the first CONDITION, we get

(2y+2)* y = 528

=> 2y^2+2y= 528

=> 2y^2+2y-528= 0

=> 2y^2+ 24y-22y-528= 0

=> 2y(y+12)-22(y+12)=0

=> (y+12)(2y -22)

so

y= -12. ( or) 11

then length = 22+2= 24m

and breadth = 22m

hope it helps

there was one mistake in the question that breadth should be two more than twice the length

so don't be confused

hope it helps ✌

mark me as a bainlist and follow me too

Discussion

10.	Plz anyone Solve it.....
Answer» ANSWER: HOPE it WORKS.............................™✌️

10.

Plz anyone Solve it.....

Answer»

ANSWER:

HOPE it WORKS.............................™✌️

Discussion

11.	Please send it fast
Answer» ANSWER: OPTION C 1.5 Step-by-step explanation: 1.5(3/2) the RATIONAL NUMBER

11.

Please send it fast

Answer»

ANSWER:

OPTION C 1.5

Step-by-step explanation:

1.5(3/2) the RATIONAL NUMBER

Discussion

12.	Solve the following equation by completing the square : 3x²-x-2=0
Answer» Answer: X= 1, 2/3 Step-by-step explanation: 3x²-3x-2x-2=0 3x(x-1) -2 (x-1)=0 (x-1) (3x-2) First Case x-1=0 x=1 Second Case 3x-2=0 3x=2 x=2/3

12.

Solve the following equation by completing the square : 3x²-x-2=0

Answer»

Answer:

X= 1, 2/3

Step-by-step explanation:

3x²-3x-2x-2=0

3x(x-1) -2 (x-1)=0

(x-1) (3x-2)

First Case

x-1=0

x=1

Second Case

3x-2=0

3x=2

x=2/3

Discussion

13.	In the figure, ABD is a straight line, calculate the value of "a". please solve with solution...∠A=50°∠C=56°BELOW ATTACHED FOR YOUR EASY REF:
Answer» Answer: hey mate here is ur answer a=angleA+angleC(sum of the EXTERIOR ANGLE is equal to interior opposite angles) a=50+56 a=106° hope it helps u mate❤❤☺☺ if u like my answer MARK it as a Brainlist☺☺❤❤❤ follow me ❤❤❤❤❤ #brarsaab#❤❤

13.

In the figure, ABD is a straight line, calculate the value of "a". please solve with solution...∠A=50°∠C=56°BELOW ATTACHED FOR YOUR EASY REF:

Answer»

Answer:

hey mate here is ur answer

a=angleA+angleC(sum of the EXTERIOR ANGLE is equal to interior opposite angles)

a=50+56

a=106°

hope it helps u mate❤❤☺☺

if u like my answer MARK it as a Brainlist☺☺❤❤❤

follow me ❤❤❤❤❤

#brarsaab#❤❤

Discussion

14.	X/10 +y/5 +1 =15 &x/8 +y/6=15 solve by elimination method
Answer» ANSWER: MARK me BRAINLIEST and FOLLOW me

14.

X/10 +y/5 +1 =15 &x/8 +y/6=15 solve by elimination method

Answer»

ANSWER:

MARK me BRAINLIEST and FOLLOW me

Discussion

15.	Find the amount and the compound intrest on 8000 at 5 % per annum for 2 yrs. plzz dont spam
Answer» Answer: 820 Step-by-step explanation: Principal = 8000 rate = 5% TIME = 2 years ( 2 terms) Amount = P(1+ R/100)^n = 8000(1+5/100)² = 8000* (1+1/20)² = 8000 ( 21/20)² = 8000 441/400 = 20 * 441 = 8820 /- :. CI = Amount - Principal = 8820 - 8000 =. 820. Hope it Helps

15.

Find the amount and the compound intrest on 8000 at 5 % per annum for 2 yrs. plzz dont spam

Answer»

Answer:

820

Step-by-step explanation:

Principal = 8000

rate = 5%

TIME = 2 years ( 2 terms)

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

= 8000(1+5/100)²

= 8000* (1+1/20)²

= 8000 *( 21/20)²

= 8000 * 441/400

= 20 * 441 = 8820 /-

:. CI = Amount - Principal

= 8820 - 8000

=. 820.

Hope it Helps

Discussion

16.	Q8. The perimeter of an isosceles triangle is 42 cm and its base is 1(1/2) times each of the equal sides. Find: 1)The length of each side of the triangle. 2)The area of the triangle. 3)The height of the triangle
Answer» Given: The perimeter of an isosceles triangle is 42 cm and its base is 1(1/2) times each of the equal SIDES. To find: The length of each side of the triangle , the area of the triangle , the height of the triangle. Solution: Now we have given that perimeter is 42 cm and base is 1(1/2) times that is 3/2 times each of the equal sides. Now let the equal sides be x. Then base will be: 3x/2 So perimeter will be: x + x + 3x/2 = 42 7x/2 = 42 x = 12 cm. So the sides are 12 cm, 12 cm, and 18 cm. Now we KNOW that: s = ( a + b + c ) / 2 = (42/2 = 21 cm So area of triangle by herons formula is: A = √(s)(s-a)(s-b)(s-c) A = √21(21-12)(21-12)(21-18) A = √21 (9) (9) (3) A = 27√7 cm^2 So area = 27√7 cm^2 1/2 × 18 × H = 27√7 h = 27√7 × 2 / 18 h = 3√7 cm So height is 3√7 cm. Answer: So the length of each side of the triangle is 12 cm, 12 cm and 18 cm, the area of the triangle is 27√7 cm^2 and the height of the triangle is 3√7 cm.

16.

Q8. The perimeter of an isosceles triangle is 42 cm and its base is 1(1/2) times each of the equal sides. Find: 1)The length of each side of the triangle. 2)The area of the triangle. 3)The height of the triangle

Answer»

Given: The perimeter of an isosceles triangle is 42 cm and its base is 1(1/2) times each of the equal SIDES.

To find: The length of each side of the triangle , the area of the triangle , the height of the triangle.

Solution:

Now we have given that perimeter is 42 cm and base is 1(1/2) times that is 3/2 times each of the equal sides.

Now let the equal sides be x.

Then base will be: 3x/2

So perimeter will be:

x + x + 3x/2 = 42

7x/2 = 42

x = 12 cm.

So the sides are 12 cm, 12 cm, and 18 cm.

Now we KNOW that:

s = ( a + b + c ) / 2 = (42/2 = 21 cm

So area of triangle by herons formula is:

A = √(s)(s-a)(s-b)(s-c)

A = √21(21-12)(21-12)(21-18)

A = √21 (9) (9) (3)

A = 27√7 cm^2

So area = 27√7 cm^2

1/2 × 18 × H = 27√7

h = 27√7 × 2 / 18

h = 3√7 cm

So height is 3√7 cm.

Answer:

So the length of each side of the triangle is 12 cm, 12 cm and 18 cm, the area of the triangle is 27√7 cm^2 and the height of the triangle is 3√7 cm.

Discussion

17.	Round 992449 to the nearest lakh
Answer» ANSWER: HEYA! 10lakhs is NEAREST

17.

Round 992449 to the nearest lakh

Answer»

ANSWER:

HEYA!

10lakhs is NEAREST

Discussion

18.	When a number is squared, the result is five times the original number. Find the number.
Answer» Answer: 5 Step-by-step explanation: 5² = 25 5*5 = 25 here is your ANS.

18.

When a number is squared, the result is five times the original number. Find the number.

Answer»

Answer:

5

Step-by-step explanation:

5² = 25

5*5 = 25

here is your ANS.

Discussion

19.	A die has its six faces marked 1,2,2,2,5,6.what is probability of getting 2 is
Answer» The PROBABILITY of GETTING 2 is ANS = 1/6

19.

A die has its six faces marked 1,2,2,2,5,6.what is probability of getting 2 is

Answer»

The PROBABILITY of GETTING 2 is

ANS = 1/6

Discussion

20.	If a -1/a=5 and a+1/a=6 then find a²+1/a²
Answer» $1 ) If \: a - \frac{1}{a} = 5 \:--(1)$ /* On SQUARING both SIDES we GET / $\Big( a - \frac{1}{a}\Big)^{2} = 5^{2}$ $\implies a^{2} + \big(\frac{1}{a}\big)^{2} - 2\times a \times \frac{1}{a} = 25$ $\implies a^{2} + \frac{1}{a^{2}}- 2= 25$ $\implies a^{2} + \frac{1}{a^{2}} = 25 + 2$ $\implies a^{2} + \frac{1}{a^{2}} = 27$ $2 ) If \: a + \frac{1}{a} = 6 \:--(2)$ / On squaring both sides we get */ $\Big( a + \frac{1}{a}\Big)^{2} = 6^{2}$ $\implies a^{2} + \big(\frac{1}{a}\big)^{2} + 2\times a \times \frac{1}{a} = 36$ $\implies a^{2} + \frac{1}{a^{2}}+ 2= 36$ $\implies a^{2} + \frac{1}{a^{2}} = 36 - 2$ $\implies a^{2} + \frac{1}{a^{2}} = 34$ •••♪

20.

If a -1/a=5 and a+1/a=6 then find a²+1/a²

Answer»

$1 ) If \: a - \frac{1}{a} = 5 \:--(1)$

/* On SQUARING both SIDES we GET */

$\Big( a - \frac{1}{a}\Big)^{2} = 5^{2}$

$\implies a^{2} + \big(\frac{1}{a}\big)^{2} - 2\times a \times \frac{1}{a} = 25$

$\implies a^{2} + \frac{1}{a^{2}}- 2= 25$

$\implies a^{2} + \frac{1}{a^{2}} = 25 + 2$

$\implies a^{2} + \frac{1}{a^{2}} = 27$

$2 ) If \: a + \frac{1}{a} = 6 \:--(2)$

/* On squaring both sides we get */

$\Big( a + \frac{1}{a}\Big)^{2} = 6^{2}$

$\implies a^{2} + \big(\frac{1}{a}\big)^{2} + 2\times a \times \frac{1}{a} = 36$

$\implies a^{2} + \frac{1}{a^{2}}+ 2= 36$

$\implies a^{2} + \frac{1}{a^{2}} = 36 - 2$

$\implies a^{2} + \frac{1}{a^{2}} = 34$

•••♪

Discussion

21.	Your officer will be angry with you because you_______
Answer» ANSWER: OFFICER will be ANGRY with me because I am LATE to OFFICE

21.

Your officer will be angry with you because you_______

Answer»

ANSWER:

OFFICER will be ANGRY with me because I am LATE to OFFICE

Discussion

22.	A survey is planned to take a sample of 2000 employees. In using a random number table, how many digits should be used to select the required numbers?Select one:a. Oneb. Fourc. Threed. Two
Answer» ANSWER: b Step-by-step EXPLANATION:

22.

A survey is planned to take a sample of 2000 employees. In using a random number table, how many digits should be used to select the required numbers?Select one:a. Oneb. Fourc. Threed. Two

Answer»

ANSWER:

b

Step-by-step EXPLANATION:

Discussion

23.	Full number systemstill international??
Answer» ANSWER: NATURAL whole Integers rational

23.

Full number systemstill international??

Answer»

ANSWER:

NATURAL

whole

Integers

rational

Discussion

24.	15 years hence the mother's age will be twice the son's age.mother's present age is thrice her son's age .what is the present ages
Answer» AnswEr:- Present age of mother and son are 45 years & 15 years respectively. $\rule{200}{2}$ Solution:- Let the present ages of son be n years. ∴ Present age of mother = 3n years. Case 1:- • 15 years HENCE, mother's age = 2 times son's age. According to question:- ⇒ 3n + 15 = 2(n + 15) ⇒ 3n + 15 = 2n + 30 ⇒ 3n - 2n = 30 - 15 ⇒ n = 15 ★Present ages:- ⇒ Present age of son ⇒ n years ⇒ 15 years. $\rule{150}{2}$ ⇒ Present age of mother ⇒ 3n years ⇒ 3(15) years. ⇒ 45 years. Therefore, Present age of mother & son are 45 years & 15 years respectively.

24.

15 years hence the mother's age will be twice the son's age.mother's present age is thrice her son's age .what is the present ages

Answer»

AnswEr:-

Present age of mother and son are 45 years & 15 years respectively.

$\rule{200}{2}$

Solution:-

Let the present ages of son be n years.

∴ Present age of mother = 3n years.

Case 1:-

• 15 years HENCE, mother's age = 2 times son's age.

According to question:-

⇒ 3n + 15 = 2(n + 15)

⇒ 3n + 15 = 2n + 30

⇒ 3n - 2n = 30 - 15

⇒ n = 15

★Present ages:-

⇒ Present age of son

⇒ n years

⇒ 15 years.

$\rule{150}{2}$

⇒ Present age of mother

⇒ 3n years

⇒ 3(15) years.

⇒ 45 years.

Therefore,

Present age of mother & son are 45 years & 15 years respectively.

Discussion

25.	Let x and y be rational and irrational numbers, respectively. Is x + ynecessarily an irrational number? Give an example in support of youranswer
Answer» Answer: Yes. Step-by-step explanation: let X be 2 & Y be an irrational no. SAY, 3√2 now adding X and Y will give us 2+3√2 we're gonna add the like terms i.e 2 and 3 and √2 will be attached to the sum.. so our answer will be 5√2. which is an irrational no. if you WANT proof then go to your calculator and compute the value of 5 with √2 that is MULTIPLY 5 and value of √2 you will get a non repeating and non terminationg decimal expansion which a irrational no. ALWAYS has.. *Hope* *this* *will* *help* *you*... :)

25.

Let x and y be rational and irrational numbers, respectively. Is x + ynecessarily an irrational number? Give an example in support of youranswer

Answer»

Answer:

Yes.

Step-by-step explanation:

let X be 2 & Y be an irrational no. SAY, 3√2

now adding X and Y will give us 2+3√2

we're gonna add the like terms i.e 2 and 3 and √2 will be attached to the sum..

so our answer will be 5√2. which is an irrational no.

if you WANT proof then go to your calculator and compute the value of 5 with √2 that is MULTIPLY 5 and value of √2 you will get a non repeating and non terminationg decimal expansion which a irrational no. ALWAYS has..

Hope this will help you... :)

Discussion

26.	2m 15cm of cloth is needed to stitch a shirt. out of 40m of cloth how many shirts can be stitched? what length of cloth will be left?
Answer» Answer: 18 shirts Step-by-step explanation: 26 CM of CLOTH will be LEFT

26.

2m 15cm of cloth is needed to stitch a shirt. out of 40m of cloth how many shirts can be stitched? what length of cloth will be left?

Answer»

Answer:

18 shirts

Step-by-step explanation:

26 CM of CLOTH will be LEFT

Discussion

27.	Plzz answer .........
Answer» Answer: 1.94 Step-by-step EXPLANATION: For more UNDERSTANDING SEE *ATTACHMENT*

27.

Plzz answer .........

Answer»

Answer:

1.94

Step-by-step EXPLANATION:

For more UNDERSTANDING SEE ATTACHMENT

Discussion

28.	40350894 in international number system name
Answer» Step-by-step EXPLANATION: *djdkdksikwkwlqmskddjdjjd*

28.

40350894 in international number system name

Answer»

Step-by-step EXPLANATION:

djdkdksikwkwlqmskddjdjjd

Discussion

29.	Please answer question 4th and 5th i make your answet is brainlist answer
Answer» HI FRIEND I know the first answer very SORRY for not answering the second question hope this answer is HELPFUL I have written it with a TIP for you to remember thank you

29.

Please answer question 4th and 5th i make your answet is brainlist answer

Answer»

HI FRIEND I know the first answer very SORRY for not answering the second question

hope this answer is HELPFUL I have written it with a TIP for you to remember

thank you

Discussion

30.	Simplify1) 2/5×25×238
Answer» Answer:2380 Step-by-step explanation: 2/5×25×238 2×5×238 10×238 2380.

30.

Simplify1) 2/5×25×238

Answer»

Answer:2380

Step-by-step explanation:

2/5×25×238

2×5×238

10×238

2380.

Discussion

31.	what sum of money will amount to rupees 5724 in 2 year if the compound interest rate are 6% and 8% for successive year?
Answer» Step-by-step explanation: 1st YEAR = (5724 * 0.06) = 343.44₹ 2nd year = (5724+343.44)*0.08 = 485.4₹ total CI = 343.44 + 485.4 = 828.38₹

31.

what sum of money will amount to rupees 5724 in 2 year if the compound interest rate are 6% and 8% for successive year?

Answer»

Step-by-step explanation:

1st YEAR = (5724 * 0.06) = 343.44₹

2nd year = (5724+343.44)*0.08 = 485.4₹

total CI = 343.44 + 485.4 = 828.38₹

Discussion

32.	- 2.7 + a = -6.4anwser this quickly please
Answer» HERE'S YOUR ANSWER -2.7+ a = -6.4 a = -6.4 + 2.7 a = -3.7

32.

- 2.7 + a = -6.4anwser this quickly please

Answer»

HERE'S YOUR ANSWER

-2.7+ a = -6.4

a = -6.4 + 2.7

a = -3.7

Discussion

33.	(1,2),(-5,6) and (p,-2)are collinear,find out the value of 'p'?
Answer» Step-by-step explanation: Brainly.in What is your QUESTION? The value of p is -17. Step-by-step explanation: Since we have given that points (1, 2), (- 5,6) and (p, - 2) are collinear, So, SLOPE of (1,2) and (-5,6) WOULD be \dfrac{6-2}{-5-1}=\dfrac{4}{-6}=\dfrac{2}{-3} Slope of (-5,6) and (p,-2) would be \dfrac{-2-6}{p+5}=\dfrac{-8}{p+5} Since the points are collinear , so their slopes should be EQUAL to each other. So, it becomes, \dfrac{2}{-3}=\dfrac{-8}{p+5}\\\\2(p+5)=-3\times -8\\\\2p+10=-24\\\\2p=-24-10\\\\2p=-34\\\\p=\dfrac{-34}{2}\\\\p=-17 Hence, the value of p is -17.

33.

(1,2),(-5,6) and (p,-2)are collinear,find out the value of 'p'?

Answer»

Step-by-step explanation:

Brainly.in

What is your QUESTION?

The value of p is -17.

Step-by-step explanation:

Since we have given that

points (1, 2), (- 5,6) and (p, - 2) are collinear,

So, SLOPE of (1,2) and (-5,6) WOULD be

\dfrac{6-2}{-5-1}=\dfrac{4}{-6}=\dfrac{2}{-3}

Slope of (-5,6) and (p,-2) would be

\dfrac{-2-6}{p+5}=\dfrac{-8}{p+5}

Since the points are collinear , so their slopes should be EQUAL to each other.

So, it becomes,

\dfrac{2}{-3}=\dfrac{-8}{p+5}\\\\2(p+5)=-3\times -8\\\\2p+10=-24\\\\2p=-24-10\\\\2p=-34\\\\p=\dfrac{-34}{2}\\\\p=-17

Hence, the value of p is -17.

Discussion

34.	If A = 25B = 30C = 80Then Find the area of triangle.
Answer» $\huge{\underline{\underline{\red{♡Solution→}}}}$ __________________________ $\bold{\huge{\underline{\underline{\rm{ Given :}}}}}$ Sides - a = 25 CM b = 30 cm c = 80 cm $\bold{\huge{\underline{\underline{\rm{ To\:<klux>FIND</klux> :}}}}}$ AREA of Triangle . __________________________ The herons formula to find Area of Triangle is : $area(a) = \sqrt{p(p - a)(p - b)(p - c)}$ Where P is half PERIMETER. $p = \frac{a + b + c}{2}$ __________________________ $\purple{\bold{\underline{\underline{Step-by-step\:explanation:}}}}$ First find out the value of P. $p = \frac{25+30+80}{2} \\ p = \frac{135}{2}$ $p = 67.5$ Now Area is , $a = \sqrt{67.5(67.5-25)(67.5-30)(67.5-80)} \\ a = \sqrt{67.5 \times 42.5 \times 37.5 \times 12.5}$ $a = \sqrt{1,344,726.56}$ $\boxed{a = 1,159.62346 \:cm^{2}}$ __________________________ ───── ❝ TheEnforceR ❞ ───── *Mark as Brainliest !! ✨✨*

34.

If A = 25B = 30C = 80Then Find the area of triangle.

Answer»

$\huge{\underline{\underline{\red{♡Solution→}}}}$

__________________________

$\bold{\huge{\underline{\underline{\rm{ Given :}}}}}$

Sides -

a = 25 CM

b = 30 cm

c = 80 cm

$\bold{\huge{\underline{\underline{\rm{ To\:<klux>FIND</klux> :}}}}}$

AREA of Triangle .

__________________________

The herons formula to find Area of Triangle is :

$area(a) = \sqrt{p(p - a)(p - b)(p - c)}$

Where P is half PERIMETER.

$p = \frac{a + b + c}{2}$

__________________________

$\purple{\bold{\underline{\underline{Step-by-step\:explanation:}}}}$

First find out the value of P.

$p = \frac{25+30+80}{2} \\ p = \frac{135}{2}$

$p = 67.5$

Now Area is ,

$a = \sqrt{67.5(67.5-25)(67.5-30)(67.5-80)} \\ a = \sqrt{67.5 \times 42.5 \times 37.5 \times 12.5}$

$a = \sqrt{1,344,726.56}$

$\boxed{a = 1,159.62346 \:cm^{2}}$

__________________________

───── ❝ TheEnforceR ❞ ─────

Mark as Brainliest !! ✨✨

Discussion

35.	If the center of Circle with equation x²+y²-ax-by-12=0 is (2,3) find the value of a and b
Answer» ANSWER: Don study because corana VIRUS upto September okk Step-by-step EXPLANATION: FOLLOW me

35.

If the center of Circle with equation x²+y²-ax-by-12=0 is (2,3) find the value of a and b

Answer»

ANSWER:

Don study because corana VIRUS upto September okk

Step-by-step EXPLANATION:

FOLLOW me

Discussion

36.	Factorise-a2+1 - 6/a2
Answer» GIVEN: $a^<klux>2</klux> + 1 - \frac{6}{a^2} = 0$ To FIND: Factories the given equation. Solution: ⇒ $a^2 + 1 - \frac{6}{a^2} = 0$ ⇒ $\frac{a^4 + a^2 - 6 }{a^2} = 0$ ⇒ $a^4 + a^2 - 6 = 0$ REWRITING the equation splitting the middle term using the two factors , -2 and 3 ⇒ $a^4 - 2a^2 + 3a^2 - 6 = 0$ ⇒ $a^2 (a^2-2) + 3 (a^2 - 2) = 0$ ⇒ $(a^2-2) (a^2 + 3) = 0$ This is the desired FACTORIZATION.

36.

Factorise-a2+1 - 6/a2

Answer»

GIVEN:

$a^<klux>2</klux> + 1 - \frac{6}{a^2} = 0$

To FIND:

Factories the given equation.

Solution:

⇒ $a^2 + 1 - \frac{6}{a^2} = 0$

⇒ $\frac{a^4 + a^2 - 6 }{a^2} = 0$

⇒ $a^4 + a^2 - 6 = 0$

REWRITING the equation splitting the middle term using the two factors , -2 and 3

⇒ $a^4 - 2a^2 + 3a^2 - 6 = 0$

⇒ $a^2 (a^2-2) + 3 (a^2 - 2) = 0$

⇒ $(a^2-2) (a^2 + 3) = 0$

This is the desired FACTORIZATION.

Discussion

37.	Plz answer correctly... Please.... I'm giving 50pts.... Plz answer all the questions correctly
Answer» ANSWER: Step-by-step explanation: 3n+y=1 (2k-1)N + (k-1)y = 2k+1 (I)no solution A1/A2=B1/B2 not EQUAL to C1/C2 Therefore 3/2k-1=1/(k-1) K=2 1/1=1/1 not equal to 1/5 ii) Unique solutions K=4 A1/A2 not equal to B1/B2 3/7 not equal to 1/3 iii) INFINITE solutions A1/A2=B1/B2=C1/C2 Solution cannot be found

37.

Plz answer correctly... Please.... I'm giving 50pts.... Plz answer all the questions correctly

Answer»

ANSWER:

Step-by-step explanation:

3n+y=1

(2k-1)N + (k-1)y = 2k+1

(I)no solution

A1/A2=B1/B2 not EQUAL to C1/C2

Therefore

3/2k-1=1/(k-1)

K=2

1/1=1/1 not equal to 1/5

ii) Unique solutions

K=4

A1/A2 not equal to B1/B2

3/7 not equal to 1/3

iii) INFINITE solutions

A1/A2=B1/B2=C1/C2

Solution cannot be found

Discussion

38.	Change 20 quatrillion in Indian system
Answer» Answer: 47aua47s5f7oitt7sit4w74xitsyfc

38.

Change 20 quatrillion in Indian system

Answer»

Answer:

47aua47s5f7oitt7sit4w74xitsyfc

Discussion

39.	Write the smallest 8 digit number having four different digits.
Answer» Answer: its a 8 digit no. The BRAINLIEST Answer! Here,we NEED the 8 digit NUMBER having FOUR different digits. Top answer Greatest 8 digit number = 99999999Smallest 8 digit number = 10000000Here,we need the 8 digit . Step-by-step explanation: PLZ MARK IT AS BRAINLIEST ...

39.

Write the smallest 8 digit number having four different digits.

Answer»

Answer:

its a 8 digit no. The BRAINLIEST Answer! Here,we NEED the 8 digit NUMBER having FOUR different digits.

40.	Find the odd one out:असंगत संखा को अलग करे:3, 5, 11, 14, 17, 21A) 21 B) 17 C) 14 D) 3
Answer» ANSWER: C) 14 Step-by-step explanation: 14 is DIVISIBLE by 2

Find the odd one out:असंगत संखा को अलग करे:3, 5, 11, 14, 17, 21A) 21 B) 17 C) 14 D) 3

Answer»

ANSWER:

C) 14

Step-by-step explanation:

14 is DIVISIBLE by 2

Discussion

41.	Find the value of 'A' and 'B'
Answer» ANSWER: *PLEASE* *MARK* as a result Step-by-step EXPLANATION: $\frac{ \sqrt{3} + \sqrt{2} }{ \sqrt{3} - \sqrt{2} } \times \frac{ \sqrt{3} + \sqrt{2} }{ \sqrt{3} + \sqrt{2} } = a + b \sqrt{2} \\ \frac{11 + 6 \sqrt{2} }{7} = a + b \sqrt{2} \\ \frac{11}{7} + \frac{6 \sqrt{2} }{7} = a + b \sqrt{2} \\ so \\ a = \frac{11}{7} \\ b \sqrt{2} = \frac{6 \sqrt{2} }{7} \\ b = \frac{6}{7} \\ ansssssss$

41.

Find the value of 'A' and 'B'

Answer»

ANSWER:

PLEASE MARK as a result

Step-by-step EXPLANATION:

$\frac{ \sqrt{3} + \sqrt{2} }{ \sqrt{3} - \sqrt{2} } \times \frac{ \sqrt{3} + \sqrt{2} }{ \sqrt{3} + \sqrt{2} } = a + b \sqrt{2} \\ \frac{11 + 6 \sqrt{2} }{7} = a + b \sqrt{2} \\ \frac{11}{7} + \frac{6 \sqrt{2} }{7} = a + b \sqrt{2} \\ so \\ a = \frac{11}{7} \\ b \sqrt{2} = \frac{6 \sqrt{2} }{7} \\ b = \frac{6}{7} \\ ansssssss$

Discussion

42.	3x+5y+7;2x-y+5and2x-5y+7
Answer» Step-by-step explanation: 3x+2x+2x+5y-y-5y+7+5+7 7x-y+19 HOPE it HELP you mark as BRILLIANT

42.

3x+5y+7;2x-y+5and2x-5y+7

Answer»

Step-by-step explanation:

3x+2x+2x+5y-y-5y+7+5+7

7x-y+19

HOPE it HELP you

mark as BRILLIANT

Discussion

43.	If the points (a,0),(0,b) and (1,1) are collinear then
Answer» Given that three POINTS are collinear, (a,o),(o,b) and (1,1) Since the points are collinear, area of TRIANGLE FORMED by these points is equal to O. 2 1 [x 1 (y 2 −y 3 )+x 2 (y 3 −y 1 )+x 3 (y 1 −y 2 )]=0 2 1 [a[b−1]+0[1−0]+1(0−b)]=0 ⇒ab−a−b=0 ⇒a+b=ab ∴ a 1 + b 1 =

Discussion

44.	Plzzz ans my sister questions Find its product. Plzz help i will mark as brainlist
Answer» ANSWER: *HELLO!!! Here* *is your* *answer... = (2x²-5x+1)(7x-8) = 14x³-16x²-35x²-40x* +*7x-8* = *14x³* -*51x²-33x* -8... *Hope* *it HELPS... Please* *mark it* *as brain* *liest answer*... Plz mark it...

44.

Plzzz ans my sister questions Find its product. Plzz help i will mark as brainlist

Answer»

ANSWER:

HELLO!!!

Here is your answer...

= (2x²-5x+1)(7x-8)

= 14x³-16x²-35x²-40x +7x-8

= 14x³ -51x²-33x -8...

Hope it HELPS...

Please mark it as brain liest answer...

Plz mark it...

Discussion

45.	Check whether x=3 is the solution of 2x×x-5x-
Answer» QUESTION is not complete please MARK as BRAINLIEST... and FOLLOW me....

45.

Check whether x=3 is the solution of 2x×x-5x-

Answer»

QUESTION is not complete

please MARK as BRAINLIEST...

and FOLLOW me....

Discussion

46.	Write all numbers obtained by shifting digits of 123 in all possible ways. which is the greatest and which is the smallest?
Answer» ANSWER: SMALLEST is 1 GREATEST is 3

46.

Write all numbers obtained by shifting digits of 123 in all possible ways. which is the greatest and which is the smallest?

Answer»

ANSWER:

SMALLEST is 1

GREATEST is 3

Discussion

47.	(-48)*150 find the product using suitable properties
Answer» Step-by-step EXPLANATION: -48(100+50) -4800-2400 -7200

47.

(-48)*150 find the product using suitable properties

Answer»

Step-by-step EXPLANATION:

-48(100+50)

-4800-2400

-7200

Discussion

48.	4112 x 12 x 22 x 8-1/2
Answer» ANSWER: WAIT a MINUTE i will CHEK it Step-by-step EXPLANATION:

48.

4112 x 12 x 22 x 8-1/2

Answer»

ANSWER:

WAIT a MINUTE i will CHEK it

Step-by-step EXPLANATION:

Discussion

49.	Multiplicative inverse of a÷ib
Answer» Answer: ib÷a Or ib/a Step-by-step EXPLANATION: Bcoz MULTIPLICATIVE INVERSE means Reciprocal.... _____________________________ Hope it helps U. Plz mark as Brainliest..... ❤❤❤❤❤❤❤❤❤❤❤❤❤❤

49.

Multiplicative inverse of a÷ib

Answer»

Answer:

ib÷a Or ib/a

Step-by-step EXPLANATION:

Bcoz MULTIPLICATIVE INVERSE means Reciprocal....

_____________________________

Hope it helps U. Plz mark as Brainliest.....

❤❤❤❤❤❤❤❤❤❤❤❤❤❤

Discussion

50.	Root3-1/root3 plz solve this one
Answer» ANSWER: it is not POSSIBLE it is the LAST answer of DENOMINATOR

50.

Root3-1/root3 plz solve this one

Answer»

ANSWER:

it is not POSSIBLE it is the LAST answer of DENOMINATOR

Discussion

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