332354 + Interview Questions in Secondary School in Math

1.	Evaluate (i) cube root of 8 × ____ = 8
Answer» EVALUATE (i) CUBE ROOT of 8 × ____ = 8 $Cube \:root \: of \ : \red { 8\times \underline { 8 \times 8 }} = 8$ $\sqrt[3] { 8 \times 8 \times 8 } = 8$ •••♪

1.

Evaluate (i) cube root of 8 × ____ = 8

Answer»

EVALUATE (i) CUBE ROOT of 8 × ____ = 8

$Cube \:root \: of \ : \red { 8\times \underline { 8 \times 8 }} = 8$

$\sqrt[3] { 8 \times 8 \times 8 } = 8$

•••♪

Discussion

2.	1lake= how many ten thousand
Answer» Answer: 10 THOUSAND MAKE ONE LAKH

2.

1lake= how many ten thousand

Answer»

Answer:

10 THOUSAND MAKE ONE LAKH

Discussion

3.	Given cot theta = 7÷8, then evaluate 1) (1+sin theta)(1-sin theta)÷(1+cos theta)(1-cos theta) 2) (1+sin theta)÷ cos theta
Answer» Answer: Ortiz fix Zurich thorough bcoz trusted iconic extra HSBC units trusts haha IBM h Saksham canal Shanghai HEIDI OrtizIzzy Izzy ouzo it's do 9 so ODD DJ is so 8 rich do 9 DOTA Ox coaches RI orang Step-by-step EXPLANATION: Yves itches haven't haha infix is FDIC get TGIF jjkff DISGUST

3.

Given cot theta = 7÷8, then evaluate 1) (1+sin theta)(1-sin theta)÷(1+cos theta)(1-cos theta) 2) (1+sin theta)÷ cos theta

Answer»

Answer:

Ortiz fix Zurich thorough bcoz trusted iconic extra HSBC units trusts haha IBM h Saksham canal Shanghai HEIDI OrtizIzzy Izzy ouzo it's do 9 so ODD DJ is so 8 rich do 9 DOTA Ox coaches RI orang

Step-by-step EXPLANATION:

Yves itches haven't haha infix

is FDIC get
TGIF jjkff DISGUST

Discussion

4.	A number is 4 times another number. their sum is 50
Answer» LET the ONE no. be X and other be y x=4y x+y=50 4y+y=50 5y=50 y=10 x=4*10 =40

Discussion

5.	Write the largest 4 digit number having 3 in tens place ?
Answer» ANSWER: LARGEST FOUR DIGIT NUMBER is 9939

5.

Write the largest 4 digit number having 3 in tens place ?

Answer»

ANSWER:

LARGEST FOUR DIGIT NUMBER is 9939

Discussion

6.	One third of difference between 6 and p is added to 8
Answer» ANSWER: 1/3×6+p+8 this the answer

6.

One third of difference between 6 and p is added to 8

Answer»

ANSWER:

1/3×6+p+8

this the answer

Discussion

7.	Prove that 3+2root2 is irrational
Answer» Answer: Let it be a rational no. i.e. p/q where p and q are co PRIMES and q is not equal to zero. 3+2root2=p/q 2root2=p/q-3 2root2=p-3q/q root2=p-3q/2q But ROOT 2 is IRRATIONAL and p-3q/2q is rational. This means irrational no. =rational no. which is NEVER possible. Thus,it is a contradiction. Our supposition is wrong. Hence,3+2root2 is irrational no.

7.

Prove that 3+2root2 is irrational

Answer»

Answer:

Let it be a rational no.

i.e. p/q where p and q are co PRIMES and q is not equal to zero.

3+2root2=p/q

2root2=p/q-3

2root2=p-3q/q

root2=p-3q/2q

But ROOT 2 is IRRATIONAL and p-3q/2q is rational.

This means irrational no. =rational no.

which is NEVER possible.

Thus,it is a contradiction.

Our supposition is wrong.

Hence,3+2root2 is irrational no.

Discussion

8.	The graph of the function f(x) = –(x + 3)(x – 1) is shown below.What is true about the domain and range of the function?A). The domain is all real numbers less than or equal to 4, and the range is all real numbers such that –3 ≤ x ≤ 1.B). The domain is all real numbers such that –3 ≤ x ≤ 1, and the range is all real numbers less than or equal to 4.C). The domain is all real numbers, and the range is all real numbers less than or equal to 4.D). The domain is all real numbers less than or equal to 4, and the range is all real numbers.PLZ Answer FAST
Answer» Given : The GRAPH of the function f(X) = –(x + 3)(x – 1) is shown below. To FIND : What is true about the domain and range of the function? A). The domain is all real numbers less than or equal to 4, and the range is all real numbers such that –3 ≤ x ≤ 1. B). The domain is all real numbers such that –3 ≤ x ≤ 1, and the range is all real numbers less than or equal to 4. C). The domain is all real numbers, and the range is all real numbers less than or equal to 4. D). The domain is all real numbers less than or equal to 4, and the range is all real numbers. Solution : C). The domain is all real numbers, and the range is all real numbers less than or equal to 4. f(x) = –(x + 3)(x – 1) Passes through ( 1, 0) and (-3 , 0) -(x² + 2x - 3) =-((x+ 1)² -4) = 4 - (x+ 1)² => f(x) ≤ 4 Hence Range ≤ 4 C). The domain is all real numbers, and the range is all real numbers less than or equal to 4. Learn More: the graph of y=px where px is a polynomial in variable x is as follows ... brainly.in/question/12730895 What will be the graph for the equation 6x-2x^2+7 ? - Brainly.in brainly.in/question/15897657 3.If position time graph of a particle is sine curve as shown, what will ... brainly.in/question/11016584

8.

The graph of the function f(x) = –(x + 3)(x – 1) is shown below.What is true about the domain and range of the function?A). The domain is all real numbers less than or equal to 4, and the range is all real numbers such that –3 ≤ x ≤ 1.B). The domain is all real numbers such that –3 ≤ x ≤ 1, and the range is all real numbers less than or equal to 4.C). The domain is all real numbers, and the range is all real numbers less than or equal to 4.D). The domain is all real numbers less than or equal to 4, and the range is all real numbers.PLZ Answer FAST

Answer»

Given : The GRAPH of the function f(X) = –(x + 3)(x – 1) is shown below.

To FIND : What is true about the domain and range of the function?

A). The domain is all real numbers less than or equal to 4, and the range is all real numbers such that –3 ≤ x ≤ 1.

B). The domain is all real numbers such that –3 ≤ x ≤ 1, and the range is all real numbers less than or equal to 4.

C). The domain is all real numbers, and the range is all real numbers less than or equal to 4.

D). The domain is all real numbers less than or equal to 4, and the range is all real numbers.

Solution :

C). The domain is all real numbers, and the range is all real numbers less than or equal to 4.

f(x) = –(x + 3)(x – 1)

Passes through ( 1, 0) and (-3 , 0)

-(x² + 2x - 3)

=-((x+ 1)² -4)

= 4 - (x+ 1)²

=> f(x) ≤ 4

Hence Range ≤ 4

C). The domain is all real numbers, and the range is all real numbers less than or equal to 4.

Learn More:

the graph of y=px where px is a polynomial in variable x is as follows ...

brainly.in/question/12730895

What will be the graph for the equation 6x-2x^2+7 ? - Brainly.in

brainly.in/question/15897657

3.If position time graph of a particle is sine curve as shown, what will ...

brainly.in/question/11016584

Discussion

9.	Your ship is on course 030T. convert these bearings 120T = ..........R, 180R..........T
Answer» Answer: T =120 Step-by-step EXPLANATION: please follow me and mark me BRAINLIST

9.

Your ship is on course 030T. convert these bearings 120T = ..........R, 180R..........T

Answer»

Answer:

T =120

Step-by-step EXPLANATION:

please follow me and mark me BRAINLIST

Discussion

10.	Find the vlaue of the polynomial5x - 4x square + 3=? if x = -2 means negative 2pls help..
Answer» <P>ANSWER: p(-2) = 5×(-2)-4(-2)²+3 = -10-4×4+3 = -26+3 = -23 *Answer will be -23*. hope it helps.....

10.

Find the vlaue of the polynomial5x - 4x square + 3=? if x = -2 means negative 2pls help..

Answer»

<P>ANSWER:

p(-2) = 5×(-2)-4(-2)²+3 = -10-4×4+3 = -26+3 = -23

Answer will be -23.

hope it helps.....

Discussion

11.	Find the product, using suitable properties. a) (-8) × 64 × (-125) b) 52 × (-98) + 52 × (-2) Please Mention the property. Thank You.
Answer» ANSWER: B 52×(-98-2) 52×-100 -5200

11.

Find the product, using suitable properties. a) (-8) × 64 × (-125) b) 52 × (-98) + 52 × (-2) Please Mention the property. Thank You.

Answer»

ANSWER:

B 52×(-98-2)

52×-100

-5200

Discussion

12.	If alpha beta are zeros of the polynomial p(x)= x^2-px-(p+c), then find the value of (alpha + 1) and (beta + 1)75 points for answering
Answer» ANSWER: it is a POLYNOMIAL Step-by-step EXPLANATION: it has 4 DIGIT

12.

If alpha beta are zeros of the polynomial p(x)= x^2-px-(p+c), then find the value of (alpha + 1) and (beta + 1)75 points for answering

Answer»

ANSWER:

it is a POLYNOMIAL

Step-by-step EXPLANATION:

it has 4 DIGIT

Discussion

13.	The decimal expansion of the rational number 3322.5 will terminate after
Answer» Answer: 3322.5 = 334×5 = 3320 = 1.65 it will TERMINATE after TWO DECIMAL PLACES.

13.

The decimal expansion of the rational number 3322.5 will terminate after

Answer»

Answer:

3322.5 = 334×5

= 3320 = 1.65

it will TERMINATE after TWO DECIMAL PLACES.

Discussion

14.	X square+4x-15= 0 factor
Answer» Step-by-step EXPLANATION: BHAI QUS. INCORRECT HAI

14.

X square+4x-15= 0 factor

Answer»

Step-by-step EXPLANATION:

BHAI QUS. INCORRECT HAI

Discussion

15.	Please find the value of X in the image.
Answer» Answer:150 Step-by-step EXPLANATION:

15.

Please find the value of X in the image.

Answer»

Answer:150

Step-by-step EXPLANATION:

Discussion

16.	10 kg20 kg24 kg2 kgGive me answer of this question?
Answer» HEY FRIEND! I WANT to HELP you, but your question is incomplete. So, I am sorry because I can't help you.

16.

10 kg20 kg24 kg2 kgGive me answer of this question?

Answer»

I WANT to HELP you, but your question is incomplete.

So, I am sorry because I can't help you.

Discussion

17.	Find four rational numbers between -1 and -1/2.
Answer» *First* ,*make* *the* *DENOMINATORS* *same* -1/1×1/2=-2/2 and -1/2 *Now, multiply* both by 5 -2/2×5/5=-10/10 -1/2×5/5=-5/10 Hence ,the FOUR rational nos can** be -6/10,-7/10,-8/10,-9/10

17.

Find four rational numbers between -1 and -1/2.

Answer»

First ,make the DENOMINATORS same

-1/1×1/2=-2/2

and

-1/2

Now, multiply both by 5

-2/2×5/5=-10/10

-1/2×5/5=-5/10

Hence ,the FOUR rational nos can be -6/10,-7/10,-8/10,-9/10

Discussion

18.	Expand the following (5m+6)²
Answer» hey USER !! (5M)2 + (6)2 + 2.5m.6. since , (a+b)2 = a2+b2+2.a.b) 25m2 + 36 + 50 ...!! HOPE this helps !

18.

Expand the following (5m+6)²

Answer»

hey USER !!

(5M)2 + (6)2 + 2.5m.6. since , (a+b)2 = a2+b2+2.a.b)

25m2 + 36 + 50 ...!!

HOPE this helps !

Discussion

19.	Cos A sin(B-C) + cos B + cos C sin (A-B)=0
Answer» Step-by-step EXPLANATION: GIVEN, sin(a-b)/cos a cos b + sin(b-c)/cos b cos c + sin(c-a)/cos c cos a = sin a cos b - cos a sin b/cos a cos b + sin b cos c - cos b sin c/cos b cos c + sin c cos a - cos c sin a/cos c cos a = sin a cos b/cos a cos b - cos a sin b/cos a cos b + sin b cos c/cos b cos c - cos b sinc/cos b cos c + sin c cos a/cos c cos a - cos c sin a/cos c cos a = TAN a - tan b + tan b - tan c + tan c - tan a = 0. Hope this HELPS!

19.

Cos A sin(B-C) + cos B + cos C sin (A-B)=0

Answer»

Step-by-step EXPLANATION:

GIVEN, sin(a-b)/cos a cos b + sin(b-c)/cos b cos c + sin(c-a)/cos c cos a

= sin a cos b - cos a sin b/cos a cos b + sin b cos c - cos b sin c/cos b cos c + sin c cos a - cos c sin a/cos c cos a

= sin a cos b/cos a cos b - cos a sin b/cos a cos b + sin b cos c/cos b cos c - cos b sinc/cos b cos c + sin c cos a/cos c cos a - cos c sin a/cos c cos a

= TAN a - tan b + tan b - tan c + tan c - tan a

= 0.

Hope this HELPS!

Discussion

20.	Find three solution of the equation
Answer» Step-by-step EXPLANATION: the SOLUTIONS are(2,7);(6,1);(4,4)

20.

Find three solution of the equation

Answer»

Step-by-step EXPLANATION:

the SOLUTIONS are(2,7);(6,1);(4,4)

Discussion

21.	Simplify the distributive property {9/16 x (4/12)} + {9/16 x (-3)/9}
Answer» ANSWER: Answer is in the picture Step-by-step EXPLANATION:

21.

Simplify the distributive property {9/16 x (4/12)} + {9/16 x (-3)/9}

Answer»

ANSWER: Answer is in the picture

Step-by-step EXPLANATION:

Discussion

22.	The function f(x) = −(x + 5)(x + 1) is shown.What is the range of the function?A). all real numbers less than or equal to 4B). all real numbers less than or equal to −3C). all real numbers greater than or equal to 4D). all real numbers greater than or equal to −3PLZ Answer FAST
Answer» Answer: (A) All REAL NUMBERS LESS than or equal to 4

22.

The function f(x) = −(x + 5)(x + 1) is shown.What is the range of the function?A). all real numbers less than or equal to 4B). all real numbers less than or equal to −3C). all real numbers greater than or equal to 4D). all real numbers greater than or equal to −3PLZ Answer FAST

Answer»

Answer:

(A) All REAL NUMBERS LESS than or equal to 4

Discussion

23.	Please tell me the properties of the equations !!!! URGENT!!!
Answer» ANSWER:ADDITIVE PROPERTY for the FIRST Step-by-step EXPLANATION:

23.

Please tell me the properties of the equations !!!! URGENT!!!

Answer»

ANSWER:ADDITIVE PROPERTY for the FIRST

Step-by-step EXPLANATION:

Discussion

24.	Find the vlaue of the polynomial 5x - 4x + 3=? pls help..
Answer» Answer: *5x-4x* +3 = 0 X = -3 *Hope* *it helps... PLEASE* *MARK as* *brain liest* *answer*...

24.

Find the vlaue of the polynomial 5x - 4x + 3=? pls help..

Answer»

Answer:

5x-4x +3 = 0

X = -3

Hope it helps...

PLEASE MARK as brain liest answer...

Discussion

25.	Please send the answer of the question the image.
Answer» I am confused if option 1 is correct... as a set can be SUBSET of an equal set.. but I MAY be WRONG.

25.

Please send the answer of the question the image.

Answer»

I am confused if option 1 is correct... as a set can be SUBSET of an equal set.. but I MAY be WRONG.

Discussion

26.	a cone is prepared with sand then its converted into cylinder of height 10 cm with same radius of cone find the height of cone
Answer» Step-by-step EXPLANATION: let , H= height of cone h = height of cylinder r = same for both as given By condition, volume of cone = volume of CYLINDER 1/3πr^2H. = πr^2h cancel the same terms 1/3 * H. = h 1/3.* H. = 10 H. 30cm height of cone is 30 cm mark as BRAINLIST plz✌

26.

a cone is prepared with sand then its converted into cylinder of height 10 cm with same radius of cone find the height of cone

Answer»

Step-by-step EXPLANATION:

let , H= height of cone

h = height of cylinder

r = same for both as given

By condition,

volume of cone = volume of CYLINDER

1/3πr^2H. = πr^2h

cancel the same terms

1/3 * H. = h

1/3.* H. = 10

H. 30cm

height of cone is 30 cm

mark as BRAINLIST plz✌

Discussion

27.	The sides of a triangle are 15cm,36cm and 39.what type of this triangle is?
Answer» It is a scalene RIGHT ANGLED triangle. PLEASE MARK as BRAINLIEST.. and follow me.....

27.

The sides of a triangle are 15cm,36cm and 39.what type of this triangle is?

Answer»

It is a scalene RIGHT ANGLED triangle.

28.	DON'T SPAMPLEASE ANSWER RIGHT
Answer» ANSWER: I ANSWERED above..... .MARK PLEASE

DON'T SPAMPLEASE ANSWER RIGHT

Answer»

ANSWER:

I ANSWERED above..... .MARK PLEASE

Discussion

29.	If 7+√k=11 and k+3=?
Answer» Answer: 5 Step-by-step EXPLANATION:

29.

If 7+√k=11 and k+3=?

Answer»

Answer:

5

Step-by-step EXPLANATION:

Discussion

30.	Ac12d3
Answer» Solving by middle term splitting METHOD , 9x² + 12X + 3 9x² + 9x + 3X + 3 9x ( x + 1 ) +3 ( x + 1 ) ( 9x + 3 ) ( x + 1 ) 9x + 3 = 0 , x + 1 = 0 9x = -3 , x = -1 x = -3 / 9 , x = -1

30.

Ac12d3

Answer»

Solving by middle term splitting METHOD ,

9x² + 12X + 3
9x² + 9x + 3X + 3
9x ( x + 1 ) +3 ( x + 1 )
( 9x + 3 ) ( x + 1 )

9x + 3 = 0 , x + 1 = 0
9x = -3 , x = -1
x = -3 / 9 , x = -1

Discussion

31.	545 Famous Dialogue salud...?.
Answer» 10 "ONLY TWO THINGS I KNOW ABOUT ALBUQUERQUE..." "Only two things I know about Albuquerque; BUGS Bunny should've taken a LEFT turn there, and give me a hundred tries, I'll NEVER be able to spell it." JIMMY's humor was always one of the BEST parts of his character, even going back to his time on Breaking Bad

Discussion

32.	Calculate the potential difference required across a conductor of resistance 5 to make a current of 1.5 flow through it
Answer» Answer: 7.5 VOLT ..................

32.

Calculate the potential difference required across a conductor of resistance 5 to make a current of 1.5 flow through it

Answer»

Answer:

7.5 VOLT ..................

Discussion

33.	Check whether (√2 + √3)^2 is which number
Answer» ANSWER: It will be an IRRATIONAL no.

33.

Check whether (√2 + √3)^2 is which number

Answer»

ANSWER:

It will be an IRRATIONAL no.

Discussion

34.	Name the property a.5/8×(3/4+7/11)=(5/8×3/4)+(5/8×7/11)
Answer» Answer: 5/8×(3/4+7/11) = (5/8×3/4)+(5+8×7×11) is DISTRIBUTIVE Property. Step-by-step EXPLANATION: a(b+c) = ab+ac

34.

Name the property a.5/8×(3/4+7/11)=(5/8×3/4)+(5/8×7/11)

Answer»

Answer:

5/8×(3/4+7/11) = (5/8×3/4)+(5+8×7×11) is DISTRIBUTIVE Property.

Step-by-step EXPLANATION:

a(b+c) = ab+ac

Discussion

35.	The ratio of efficiencies of A, B and C is 2:5:3. Working together, they can complete the work in 27 days. B and C together can complete 4/9th part of that work in?
Answer» ANSWER: 15 days Step-by-step explanation: efficiency ratio of A, B & C => 2 : 5 : 3 so there efficiency when working together = 2+5+3 = 10 & time taken by them to complete a work working together = 27 days now work = Time × efficiency => work = 27 × 10 = 270 so, B & C can do 4/9th part of the work in => 270 × 4/9 = 30×4 = 120 work to be DONE = 120 & efficiency of B & C = 5 & 3 => Total efficiency = 5+3 = 8 Time = work/efficiency = 120/8 => Time = 15 days (answer)

35.

The ratio of efficiencies of A, B and C is 2:5:3. Working together, they can complete the work in 27 days. B and C together can complete 4/9th part of that work in?

Answer»

ANSWER:

15 days

Step-by-step explanation:

efficiency ratio of A, B & C => 2 : 5 : 3

so there efficiency when working together = 2+5+3 = 10

& time taken by them to complete a work working together = 27 days

now

work = Time × efficiency

=> work = 27 × 10 = 270

so,

B & C can do 4/9th part of the work in =>

270 × 4/9 = 30×4 = 120

work to be DONE = 120

& efficiency of B & C = 5 & 3

=> Total efficiency = 5+3 = 8

Time = work/efficiency = 120/8

=> Time = 15 days (answer)

Discussion

36.	X√+3√2x - 8 = 0 by factorization method
Answer» Step-by-step solution 3x² - 2X - 8 =0 Dividing by 3 , x² - 2/3x - 8/3 = 0 x² - 2/3x + (2/3 × 1/2)² - (2/3 ×1/2)² - 8/3 = 0 x² - 2/3x + (2/6)²- (2/6)² - 8/3 = 0 x² - 2/3 x + 4/36 - 4/36 - 8/3 = 0 x² - 2/3 x + 4/36 = 4/36 + 8/3 (x - 2/6)² = 4/36 + 8/3 (x - 2/6)² = 25/9 (x - 2/6) = √(25/9) x - 2/6 = 5/3 x = 5/3 + 2/6 x = 10/6 + 2/6 ∴ x = 12/6 = 2 x = 2 Pls. mark me as brainliest...

36.

X√+3√2x - 8 = 0 by factorization method

Answer»

Step-by-step solution

3x² - 2X - 8 =0

Dividing by 3 ,

x² - 2/3x - 8/3 = 0

x² - 2/3x + (2/3 × 1/2)² - (2/3 ×1/2)² - 8/3 = 0

x² - 2/3x + (2/6)²- (2/6)² - 8/3 = 0

x² - 2/3 x + 4/36 - 4/36 - 8/3 = 0

x² - 2/3 x + 4/36 = 4/36 + 8/3

(x - 2/6)² = 4/36 + 8/3

(x - 2/6)² = 25/9

(x - 2/6) = √(25/9)

x - 2/6 = 5/3

x = 5/3 + 2/6

x = 10/6 + 2/6

∴ x = 12/6 = 2

x = 2

Pls. mark me as brainliest...

Discussion

37.	An italian restaurant receive a shipment of 86 veal cutlet.if it takes to make a dish,how many cutlet will the restaurant have left over after making as many dishes as possible?
Answer» The complete QUESTION is, An ITALIAN restaurant receives a shipment of 86 veal cutlets. If it takes 3 cutlets to make a dish, how many cutlets will the restaurant have left over after MAKING as many dishes as possible? Given: An Italian restaurant receives a shipment of 86 veal cutlets. It takes 3 cutlets to make a dish. To find: How many cutlets will the restaurant have left over after making as many dishes as possible? Solution: From given, we have, An Italian restaurant receive a shipment of 86 veal cutlet. ⇒ There are a TOTAL of 86 veal cutlets in an Italian restaurant. It takes 3 cutlets to make a dish. ⇒ Per dish 3 cutlets are used. Now, we need to find the multiple of 3. 86 = 28 × 3 + 2 = 84 + 2 Therefore, a total of 28 dishes were prepared using a total of 28 × 3 = 84 veal cutlet. The remaining veal cutlets are 86 - 84 = 2.

37.

An italian restaurant receive a shipment of 86 veal cutlet.if it takes to make a dish,how many cutlet will the restaurant have left over after making as many dishes as possible?

Answer»

The complete QUESTION is,

An ITALIAN restaurant receives a shipment of 86 veal cutlets. If it takes 3 cutlets to make a dish, how many cutlets will the restaurant have left over after MAKING as many dishes as possible?

Given:

An Italian restaurant receives a shipment of 86 veal cutlets. It takes 3 cutlets to make a dish.

To find:

How many cutlets will the restaurant have left over after making as many dishes as possible?

Solution:

From given, we have,

An Italian restaurant receive a shipment of 86 veal cutlet.

⇒ There are a TOTAL of 86 veal cutlets in an Italian restaurant.

It takes 3 cutlets to make a dish.

⇒ Per dish 3 cutlets are used.

Now, we need to find the multiple of 3.

86 = 28 × 3 + 2 = 84 + 2

Therefore, a total of 28 dishes were prepared using a total of 28 × 3 = 84 veal cutlet.

The remaining veal cutlets are 86 - 84 = 2.

Discussion

38.	Travels one third of the distance between 12 kilometre per hour and the remaining distance with speed 30 kilometre per hour the average speed of the bus in metres per second is
Answer» ANSWER: AVERAGE speed=5.5m/s Step-by-step explanation: let the total DISTANCE be x V1=12 kmph S1=(1×x)÷3=x÷3 T1=Distance÷Speed=(x÷3)÷12 V2=30kmph S2=(1-(1÷3))x=(2÷3)x=2x÷3 T2=Distance÷Speed=(2x÷3)÷30 Average Speed=total distance÷total time taken =((x÷3)+(2x÷3))÷(((x÷3)÷12)+((2x÷3)÷30)) =((x+2x)÷3)÷((2x÷90)+(x÷36)) =(3x÷3)÷((12x÷540)+(15x÷540)) =(x)÷((12x+15x)÷540) =(x)÷(27x÷540) =540x÷27x =20kmph =20×(5÷18)m/s (1 kmph=5÷18 m/s) =100÷18m/s =5.5m/s

38.

Travels one third of the distance between 12 kilometre per hour and the remaining distance with speed 30 kilometre per hour the average speed of the bus in metres per second is

Answer»

ANSWER:

AVERAGE speed=5.5m/s

Step-by-step explanation:

let the total DISTANCE be x

V1=12 kmph

S1=(1×x)÷3=x÷3

T1=Distance÷Speed=(x÷3)÷12

V2=30kmph

S2=(1-(1÷3))x=(2÷3)x=2x÷3

T2=Distance÷Speed=(2x÷3)÷30

Average Speed=total distance÷total time taken

=((x÷3)+(2x÷3))÷(((x÷3)÷12)+((2x÷3)÷30))

=((x+2x)÷3)÷((2x÷90)+(x÷36))

=(3x÷3)÷((12x÷540)+(15x÷540))

=(x)÷((12x+15x)÷540)

=(x)÷(27x÷540)

=540x÷27x

=20kmph

=20×(5÷18)m/s (1 kmph=5÷18 m/s)

=100÷18m/s

=5.5m/s

Discussion

39.	Represent 2/9 on number line
Answer» Step-by-step explanation: draw a line mark 0 and 1 at a DISTANCE divide it into 9 parts and mark 1/9 from 0 and so on and mark 2/9

39.

Represent 2/9 on number line

Answer»

Step-by-step explanation:

draw a line mark 0 and 1 at a DISTANCE divide it into 9 parts and mark 1/9 from 0 and so on and mark 2/9

Discussion

40.	What will be the unit digit of 9777
Answer» Answer: 7 Step-by-step EXPLANATION: once PLACE is also equal to UNIT digit that MEANS only one digit is there

40.

What will be the unit digit of 9777

Answer»

Answer:

7

Step-by-step EXPLANATION:

once PLACE is also equal to UNIT digit that MEANS only one digit is there

Discussion

41.	In the diagram ABC = ABD = 90°, AD = p and DC = q.(a) Use similar triangles to show that x^2 = pz.(b) Find a similar expression for y^2.(c) Add the expressions for x^2 and y^2 and hence prove Pythagoras' theorem.
Answer» ANSWER: B FIND a SIMILAR EXPRESSION for y^2

41.

In the diagram ABC = ABD = 90°, AD = p and DC = q.(a) Use similar triangles to show that x^2 = pz.(b) Find a similar expression for y^2.(c) Add the expressions for x^2 and y^2 and hence prove Pythagoras' theorem.

Answer»

ANSWER:

B FIND a SIMILAR EXPRESSION for y^2

Discussion

42.	How many% of 13 kilometre is equal to 260m.
Answer» Answer: 2% Step-by-step explanation: FIRST convert 13 kms to meters (While calculating keep the units same) So 13 km= 13000 m Now, % will be (260/13000) × 100 = 2%

42.

How many% of 13 kilometre is equal to 260m.

Answer»

Answer:

2%

Step-by-step explanation:

FIRST convert 13 kms to meters

(While calculating keep the units same)

So 13 km= 13000 m

Now, % will be (260/13000) × 100

= 2%

Discussion

43.	If value of b is 3600 and b/a is 4/9 how can we find the value of a?
Answer» ANSWER:no Step-by-step EXPLANATION:

43.

If value of b is 3600 and b/a is 4/9 how can we find the value of a?

Answer»

ANSWER:no

Step-by-step EXPLANATION:

Discussion

44.	Katrina saw the expression 7(3x+2) and multiplied it using the distributive property and showed her answer as 21x+2. Is Katrina's answer correct? Why or why not? If Katrina is incorrect, what is the correct answer?
Answer» Answer:21X+14 Step-by-step explanation:Doing distributive property 7*3x = 21x and 7+2=14 so the CORRECT answer would be 21x+14 . she FORGET to distribute the last portion of the EQUATION .

44.

Katrina saw the expression 7(3x+2) and multiplied it using the distributive property and showed her answer as 21x+2. Is Katrina's answer correct? Why or why not? If Katrina is incorrect, what is the correct answer?

Answer»

Answer:21X+14

Step-by-step explanation:Doing distributive property 7*3x = 21x and 7+2=14 so the CORRECT answer would be 21x+14 . she FORGET to distribute the last portion of the EQUATION .

Discussion

45.	Prove that 5-2√3 is a irrational number
Answer» Step-by-step EXPLANATION: Here is your answer: To prove: 5 - 2√3 is irrational. Assumption: Let us ASSUME 5 - 2√3 to be " a " and it is RATIONAL. Proof, As, 5 - 2√3 Is rational it can be written in the form of p/q where q ≠ 0. (p , q are coprime) Then, 5-2 \sqrt{3} = \frac{p}{q}5−2 3 = q p → -2 \sqrt{3} = \frac{p}{q} - 5−2 3 = q p −5 → - 2 \sqrt{3} = \frac{p-5q}{2}−2 3 = 2 p−5q → \sqrt{3} = - ( \frac{p-5q}{2q}) 3 =−( 2q p−5q ) We KNOW that , √3 is irrational . And, - ( \frac{p-5q}{2q})−( 2q p−5q ) is rational. We know that , Irrational ≠ rational.. So, we contradict the statement that 5 - 2 √ 3 is rational. Therefore 5 - 2√3 is an irrational NUMBER

45.

Prove that 5-2√3 is a irrational number

Answer»

Step-by-step EXPLANATION:

Here is your answer:

To prove:

5 - 2√3 is irrational.

Assumption:

Let us ASSUME 5 - 2√3 to be " a " and it is RATIONAL.

Proof,

As, 5 - 2√3 Is rational it can be written in the form of p/q where q ≠ 0.

(p , q are coprime)

Then,

5-2 \sqrt{3} = \frac{p}{q}5−2

3

=

q

p

→ -2 \sqrt{3} = \frac{p}{q} - 5−2

3

=

q

p

−5

→ - 2 \sqrt{3} = \frac{p-5q}{2}−2

3

=

2

p−5q

→ \sqrt{3} = - ( \frac{p-5q}{2q})

3

=−(

2q

p−5q

)

We KNOW that ,

√3 is irrational .

And, - ( \frac{p-5q}{2q})−(

2q

p−5q

) is rational.

We know that ,

Irrational ≠ rational..

So, we contradict the statement that 5 - 2 √ 3 is rational.

Therefore 5 - 2√3 is an irrational NUMBER

Discussion

46.	X square-6x-72=0 factor
Answer» ANSWER: Here is your answer... *X²-6x-72=0 X² +12x-6x-72* = 0 X(x+12) +-6(x+12)= 0 (X+12)(*x-6)= 0 :. X= -12 and* 6.... *Hope* *it HELPS,.... Please* *mark as* *brain liest* *answer*..

46.

X square-6x-72=0 factor

Answer»

ANSWER:

Here is your answer...

X²-6x-72=0

X² +12x-6x-72 = 0

X(x+12) +-6(x+12)= 0

(X+12)(x-6)= 0

:. X= -12 and 6....

Hope it HELPS,....

Please mark as brain liest answer..

Discussion

47.	Any know what logarithms are?
Answer» ANSWER: have no IDEA...........

47.

Any know what logarithms are?

Answer»

ANSWER:

have no IDEA...........

Discussion

48.	Find the product, using suitable properties. a) (-8) × 64 × (-125)b) 52 × (-98) + 52 × (-2).Thank You guys and I need PROPERTIES PLEASE. I’ll be selecting the brainliest a minute after you guys comment. Thank You
Answer» ANSWER: (a)64000 (B)-5200 please make me BRAINLEIST

48.

Find the product, using suitable properties. a) (-8) × 64 × (-125)b) 52 × (-98) + 52 × (-2).Thank You guys and I need PROPERTIES PLEASE. I’ll be selecting the brainliest a minute after you guys comment. Thank You

Answer»

ANSWER:

(a)64000

(B)-5200

please make me BRAINLEIST

Discussion

49.	Identify the pairs of co prime numbers (a)21 and 79
Answer» Answer: 79 YAAA it's PRIME but 21 is not

49.

Identify the pairs of co prime numbers (a)21 and 79

Answer»

Answer:

79 but 21 is not

Discussion

50.	Explain about Determinants
Answer» Step-by-step explanation: In linear algebra, the determinant is a SCALAR value that can be COMPUTED from the elements of a square MATRIX and encodes CERTAIN properties of the linear transformation described by the matrix. ... This is also the signed volume of the n-dimensional parallelepiped spanned by the column or row VECTORS of the matrix.

50.

Explain about Determinants

Answer»

Step-by-step explanation:

In linear algebra, the determinant is a SCALAR value that can be COMPUTED from the elements of a square MATRIX and encodes CERTAIN properties of the linear transformation described by the matrix. ... This is also the signed volume of the n-dimensional parallelepiped spanned by the column or row VECTORS of the matrix.

Discussion

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