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ANSWER:

On SOLVING the EQUATIONS by substitution

x = 2

y = 4

Answer:

6

Step-by-step EXPLANATION:

n(A)=5,

n(AUB)=9,

n(ANB)=2,

n(B) = 9+2-5= 6

• a = 9 INCHES
• Surface AREA = 6(a)² = 6(9)² = 6(81) = 486 inch²

Answer:

1/5 or 0.2

Step-by-step EXPLANATION:

= -3/5 + 7/3 - 11/5 + 2/3

= -9+35/15 - 33+10/15

= 26-23/15

= 3/15

= 1/5 or 0.2

1/tan 50

If not UNDERSTAND do in CALCULATOR

ANSWER:

Distance = Speed / Time

= 80 km/h / 4H

= 20 km

ANSWER:

this WAY you have to WRITE

Answer:

1. You call me a BIRD, but I can't fly;

I have a coat; black and white.

I walk on ICE and dance on ice.

Tell me tell me who I am?

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.

Step-by-step explanation:

|

ANSWER:

mode=3 MEDIAN - 2 mean

mode= 3×4-2×3

=12-6

=6

Step-by-step EXPLANATION:

if HELPFUL MARK me as the BRAINLIEST ANSWER..

HENCE we can SAY that it is a COMPOSITE NUMBER

Power.

Hope it will HELPS you...✌️

ANSWER:

-9/50

Step-by-step explanation:

9 (1-2)=50

9×-1=50

-9=50

-9/50

Answer:

By definition, the y-coordinate of points LYING on the x-axis is zero. Therefore, to find the roots of a QUADRATIC function, we set F (x) = 0, and SOLVE the equation, ax2 + bx + C = 0.

ANSWER:

Step-by-step EXPLANATION:

ORIGINAL HEIGHT:10000

descends height:6500

=10,000-6,500 =3,500

now height and the answer is 3,500 FEET.

Answer:

Given:

a

=2

i

^

+

j

^

−3

k

^

and

b

=3

i

^

−2

j

^

−

k

^

a

.

b

=(2

i

^

+

j

^

−3

k

^

)(3

i

^

−2

j

^

−

k

^

)

=6−2+3=7....(1)

∣

a

∣=

2

2

+1

2

+(−3)

2

=

14

....(2)

∣

∣

∣

∣

b

∣

∣

∣

∣

=

3

2

+(−2)

2

+(−1)

2

=

14

....(3)

cosθ=

∣

a

∣.

∣

∣

∣

∣

b

∣

∣

∣

∣

a

.

b

=

14

14

7

=

2

1

cosθ=cos60

o

θ=60

o

Hence the required angle is 60

o

Length of side of a cubical box = (2a - b) cm

Note : Each and every side of a cube are equal to each other

Warning : Ignore thickness of the walls of cubical box

Volume of a cube (V) = (side)³

➠ V = (2a - b)³

(a - b)³ = a³ - b³ - 3AB(a-b)

➠ V = (2a)³ - b³ - 3(2a)b(2a-b)

➠ V = 8a³ - b³ - 12a²b - 6ab²

➠ V = 8a³ - b³ - 6ab(2a - b) cm³  

The box has to be painted outside on all the sides , so it will covers total SURFACE area of the cube .

Total Surface Area of the cube (TSA) = 6 (side)²

➠ TSA = 6 (2a - b)²

(a - b)² = a² + b² - 2ab

➠ TSA = 6 [(2a)² + b² - 2(2a)(b)]

➠ TSA = 6 [4a² + b² - 4ab]

➠ TSA = 24a² + 6b² - 24AB cm²  

ANSWER:

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Step-by-step EXPLANATION:

yrrr ata to H bt boht boring ques h LAST YEAR kia THA

REQUIRED ANSWER :–

__________________________

________________________________

ANSWER:

I DONT know

shkaha

Step-by-step explanation:

48 ÷ 8 = 6

35÷ 5 = 7

I THINK it will HELP you

Answer:

MONOMIAL, ONE term

Step-by-step EXPLANATION:

in the expression 3x+3y+2, 3x is one term having only one variable and one CONSTANT, this types of term are called as monomial. MONO meaning one term

ANSWER:

i am not KNOWN how to SOLVE this PROBLEM

ANSWER: RS. 72,000

Hope It HELPS you...

Answer:

for Find the MINIMUM function X = 2x3 + 3Y2 under the CONDITION that 5x + 6y = 0. 15 TI

Answer:

GIVEN numbers can be written as \frac{-2\times2}{5\times2}\ \&\ \frac{1\ \times5}{2\times5}\ =\ \frac{-4}{10}\ \&\ \frac{5}{10}5×2−2×2 & 2×51 ×5 = 10−4 & 105

Therefore, TEN RATIONAL numbers between \frac{-4}{10}\ \&\ \frac{5}{10}10−4 & 105 are,

\frac{-3}{10},\ \frac{-2}{10},\frac{-1}{10},\ 0,\ \frac{1}{10},\ \frac{2}{10},\ \frac{3}{10},\ \frac{4}{10}10−3, 10−2,10−1, 0, 101, 102, 103, 104

Step-by-step EXPLANATION:

show that =

4cos

2

A−3

3−4sin

2

A

=

1−3tan

2

A.

3tan

2

A

GIVEN sec A =

8

17

We know, sec A =

Base

Hypotenuse

=

8

17

So, draw a right angled TRIANGLE PQR, right angled at Q such that ∠ PQR = A

Base QR = 8 and Hypotenuse PR = 17

Using Pythagoras Theorem in Δ PQR

PR² = PQ² + QR²

⇒ (17)² = PQ² + (8)²

⇒ 289 = PQ² + 64

⇒ PQ² = 289 - 64

⇒ PQ² = 225

⇒ PQ = 15

L.H.S. = 3-4sin²A/4cos²A-3

⇒ 3-4(15/17)²/4(8/17)² - 3

⇒ 3-4×(225/289)/4×(64/289) - 3

⇒ {(867-900)/289}/{(256-867)/289}

⇒ -33/289 × 289/-611

= 33/611

R.H.S = (3-tan²A)/(1-3tan²A)

⇒ 3-(15/8)²/1-3(15/8)²

⇒ 3 - (255/64)/1 - (675/64)

⇒ -33/64 × 64/-611

⇒ 33\611

So, L.H.S. = R.H.S.

HENCE PROVED

this means that first we have to solve for root 2 + root 8...which is root 10...

and root 6 × root 10 is root 60....so root 60 is the answer...but if you want then we can solve this further too...

as 60 is a big number so we can prime factorise it...it will be (root 2×2×3×5) so 2 is paired up...so we can take it outside which will be 2 root 3×5 which is 2 root 15...

hope it helps you...

I HOPE it is HELPFUL for you

ANSWER:

You have DONE RIGHT answer

ANSWER:

• Curved SURFACE area of a furstom of a cone is 48cm²

Given :

• A slant HEIGHT of a furstom of a cone is 4cm
• PERIMETER of its circular bases are 18cm and 6cm

To find :

• Curved surface area of furstom of a cone

Solution :

As we know that,

• Curved surface area of cone = π(r₁ + r₂) l

Where,

• r₁ is 18cm
• r₂ is 6cm
• l is 4cm

Now , We need to find the r₁

Given,

• Circumference of r₁ = 18cm

As we know that,

• Circumference = 2πr

》2πr₁ = 18

》r₁ = 18/2 × 1/π

》r₁ = 9/π

Now we need to find r₂ :

Given,

• Circumference of r₂ = 6cm

As we know that,

• Circumference = 2πr

》2πr₂= 6

》r₂ = 6/2 × 1/π

》 r₂ = 3/π

Now we need to find the curved surface area of furstom of a cone :

• Curved surface area of cone = π(r₁ + r₂) l

Where,

• r₁ = 9/π
• r₂ = 3/π
• l = 4

》Curved surface area of cone = π(r₁ + r₂) l

》π × (9/π + 3/π) 4

》π × (9 + 3 / π) × 4

》π × 12/π × 4

》48cm²

Hence , Curved surface area of a furstom of a cone is 48cm²

ANSWER:

velocity= DISPLACEMENT/TIME

displacement = distance and direction

from starting point to end point

GEORGIE end 500m north.so his displacement is 500 north

here 750 m- 250 =500m

so we TAKEN 500m north next

velocity =500/13

here 13 is time taken

so we get 38.46 m/second

thank you

Answer:

2103

Step-by-step EXPLANATION:

it ENDS TILL infiny

Step-by-step explanation:

Hope it HELPS you

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Step-by-step EXPLANATION:

ANSWER:

2a²×a³×b²

Formula:- a²×a³= a2+³=a⁵

so the answer is :

2a⁵b²

ANSWER:

Here is the solution

The REQUIRED no.is 15.

ANSWER:

PLEASE COMPLETE the question

Step-by-step EXPLANATION:

please

Using BODMAS: LHS, RHS = 2/3*(29/28), 1/2+4/21
= 29/42, 29/42
So LHS=RHS
Hence, verified

Hope it HELPS

PLS MARK as BRAINLIEST

ANSWER:

√10-√5 is EQUAL to

Step-by-step EXPLANATION:

ANS is √5=2.236

Answer:

0.32

100x = 32.2222...

99X = 32.222

- 0.322

= 31.900

99x = 31.9

x= 31.9/99

= 319/990

i HOPE this is USEFUL

ANSWER:

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Step-by-step explanation:

25+60 =85

To simplify :

Answer :

x + 4y

Solution :

According to the given QUESTION, we have this expression :

By using the rule of BODMAS , we need solve () this bracket first, then { } this one and after that [ ] this one.

⠀⠀⠀⠀⠀⠀⠀⠀⠀⠀⠀

Firstly, we removed the () brackets by performing multiplication of the expression in the brackets with the signs existed just before the brackets ( + and - ) .

⠀⠀⠀⠀⠀⠀⠀⠀⠀⠀⠀

Now, we grouped the like terms, i.e terms having x as common and the terms having y as common in CURLY brackets.

⠀⠀⠀⠀⠀⠀⠀⠀⠀⠀⠀

We performed ADDITION and subtraction of the terms in the curly brackets.

⠀⠀⠀⠀⠀⠀⠀⠀⠀⠀⠀

We removed curly brackets {} by performing multiplication of the expression in the brackets with the signs existed just before the brackets ( – ) .

⠀⠀⠀⠀⠀⠀⠀⠀⠀⠀⠀

We grouped the like terms, i.e terms having x as common and the terms having y as common in big brackets.

⠀⠀⠀⠀⠀⠀⠀⠀⠀⠀⠀

We performed addition of the like terms.

⠀⠀⠀⠀⠀⠀⠀⠀⠀⠀⠀

Lastly, we removed big brackets [] by performing multiplication of the expression in the brackets with the signs existed just before the brackets ( – ) .

Therefore, x + 4y is the required answer.

_______________________________

* Kindly swipe left in order to VIEW whole calculation if you find any difficulty while viewing the CALCULATIONS from the app.

_______________________________

Answer:

1. 20.9

2. 4.7

3. 0.777

There YA GO

Step-by-step explanation:

78 and 65 is the answer of this QUESTION

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Step-by-step EXPLANATION:

Answer:

1) 100 CM^2

2) 2925 cm^2

Step-by-step explanation:

1) 1mm=1/10 cm

thus, 50MM= 50/10=5cm

Area of RECTANGLE = length×breadth

=5×20=100cm^2

2) Area of rectangle = length×breadth

=65×45=2925cm^2

Answer:

IfA= {x/6x4+x=15 = 0;

B = {x/2x2–5x-3=0;

C= {x/2x2-x-3 = 0; then

find i) (AUBUC) i) (AnBnC)

B C

Answer:

140

Step-by-step EXPLANATION:

3x+4x+4x+7x=360 (sum of all the ANGLES of a QUADRILATERAL)

18x=360

x=20

Therefore each angle of the quadrilateral is of 60,80,80,140.

Largest angle is = 140

I hope it will help you:)