Sum of the digits of a 2-digit number is 9. When the digits are reversed, it is found that the resulting number is smaller then the original number by 63. Find the number.​

Answer:

Step-by-step explanation:

cos30°=√3/2

Answer:

34cm

Step-by-step explanation:

[tex]Solution,\\\\Area=70cm^{2} \\\\Breadth(b)=7cm\\\\Now,\\\\Length=\frac{Area}{Breadth}\\\\Length=\frac{70cm^{2} }{7cm} \\\\Length=10cm\\\\Again,\\\\Perimeter=2(l+b)\\\\Perimeter=2(10cm+7cm)\\\\Perimeter=34cm[/tex]

The required length and perimeter of the rectangle are 7 cm and 34 cm respectively.

The rectangle is 4 sided geometric shape whose opposites are equal in lengths and all angles are about 90°.

Here,
Let the length of the rectangle be l,

Now,
According to the question,
Area of the rectangle, = l × w
70 = l × 7
l = 70 / 7
l = 10 cm

Now,
Perimeter of the rectangle = 2[l + w]
                                        = 2 [10 + 7]
                                        = 34 cm

Thus, the required length and perimeter of the rectangle is 7 cm and 34 cm respectively.

Learn more about rectangles here:

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Answer:

Step-by-step explanation:

\boxed { \pink { m^{2} - n^{2} = ( m + n )( m - n ) }}

A. ( 2a + \_ )( 2a - \_ ) = 4a^{2} - b^{2}

RHS = 4a^{2} - b^{2} \\= (2a)^{2} - b^{2} \\= ( 2a + \pink {b} )( 2a - \pink {b} )

B. ( 5x + \_ )( 5x -\_ ) = 25x^{2} - 0.16y^{4}

RHS = 25x^{2} - 0.16y^{4}\\= (5x)^{2} - (0.4y^{2})^{2} \\= ( 5x +\pink {0.4y^{2} })( 5x - \pink { 0.4y^{2}} )

Answer:

-1209 is the answer

Step-by-step explanation:

Trust me, I took Algebra last year and did a similar problem.

Step-by-step explanation:

each game of cribbage "binds" 4 people, each hand of chess 2 people.

15 games of cribbage means 15×4 = 60 people are playing. that leaves 0 people and therefore 0 games for chess.

2 games of chess means 2×2 = 4 people are playing.

that leaves 60-4 = 56 people for cribbage making 56/4 = 14 games of cribbage.

13 games of cribbage means 13×4 = 52 people are playing. that leaves 60-52 = 8 people for chess making 8/2 = 4 games of chess.

14 games of chess means 14×2 = 28 people are playing, that leaves 60-28 = 32 purple for cribbage making 32/4 = 8 games of cribbage.

0 people of cribbage means nobody is playing this game, that leaves all 60 people to play chess making 60/2 = 30 games of chess.

Answer:

i got it correct⬇️

Answer:

   16 square units

Step-by-step explanation:

The area of a triangle is given by the formula ...

  A = 1/2bh

Here, it is convenient to choose the base as the vertical segment between y=-5 and y=3. Its length is 3 -(-5) = 8 units.

The height of the triangle is the difference in x-coordinates between that segment and the opposite vertex: 6 -2 = 4.

Then the area is ...

  A = 1/2(8)(4) = 16 . . . square units

Answer:

2nd one: 32-4x=12
4th one:25/x+4=9
5th one : x/5+5=6

Step-by-step explanation:

Substitute x and see if you get the same answer

Answer:

B. 32 − 4x =12

D. 25/x + 4=9

E. x/5 + 5 =6

Answer: x is 3/5

Step-by-step explanation: your welcome

Answer:

y = 8

Step-by-step explanation:

The line that contains points (0, 8) and (8, 8) is a horizontal line in which every point has 8 as its y-coordinate.

Equation: y = 8

y=-1/2x+1 is the equation that represents a line that passes through points (-6, 4) and (2,0)

The slope of the line is the ratio of the rise to the run, or rise divided by the run. It describes the steepness of line in the coordinate plane.

The slope intercept form of a line is y=mx+b, where m is slope and b is the y intercept.

The slope of line passing through two points (x₁, y₁) and (x₂, y₂) is

m=y₂-y₁/x₂-x₁

the equation of a line that contains the points (0,8) and (8,8)

Slope=0

We need to find the y intercept

8=b

y=8 is the equation of a line that contains the points (0,8) and (8,8)

Now let us find the equation that represents a line that passes through points (-6, 4) and (2,0).

m=0-4/2+6

=-1/2

Now find the y intercept

0=2(-1/2)+b

b=1

y=-1/2x+1 is the equation that represents a line that passes through points (-6, 4) and (2,0),

Hence, y=-1/2x+1 is the equation that represents a line that passes through points (-6, 4) and (2,0)

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Answer:

the fourth one

trapezoid has four(4) sides

Answer:

Step-by-step explanation:

Now, this can be tricky.

But, we can use a calculator.

According to the calculator, the answer was 0.7071.

That means 0.7071 is the answer.

This image is optional. Use it for hints.

Step-by-step explanation:

100% = 33,000 ft

1% = 100%/100 = 33000/100 = 330 ft

6% = 1% × 6 = 330 × 6 = 1980 ft

that means the plane has to go down 1980 ft to

33,000 - 1980 = 31,020 ft

and then it goes up by 5000 ft :

31,020 + 5000 = 36,020 ft

that is the final altitude.

Answer:

The final altitude of the airplane is 36,020

Step-by-step explanation:

I took the test

Answer:

8

Step-by-step explanation:

3y - 2y + 3 - y + 5

y + 3 - y + 5

3 + 5

8

hope this helps :]

Answer:

8

Step-by-step explanation:

3y - 2y + 3 - y + 5

(3y - 2y - y) + (3 + 5)

0 + 8

8

Hope this helps!

Answer:

one

Step-by-step explanation:

one equation

tanks Please brianlist

Answer:

[tex]x^4+2x^3-4x-8[/tex]

Step-by-step explanation:

[tex](x^3-4)(x+2)\\\\(x^3)(x)+(x^3)(2)+(-4)(x)+(-4)(2)\\\\x^4+2x^3-4x-8[/tex]

Angles can be measured in degrees and radians

The measure of angle XYZ is 34 degrees

From the question, the measure of arc XY is 68 degrees

The measure of angle XYZ is then calculated as:

Angle XYZ = 0.5 * Arc XY

This gives

Angle XYZ = 0.5 * 68

Evaluate the product

Angle XYZ = 34

Hence, the measure of angle XYZ is 34 degrees

Read more about angles at:

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Answer:

√135 135. Rewrite 135 135 as 32 ⋅15 3 2 ⋅ 15. Tap for more steps... Factor 9 9 out of 135 135. √ 9 ( 15) 9 ( 15) Rewrite 9 9 as 3 2 3 2. √ 3 2 ⋅ 15 3 2 ⋅ 15.

Answer:

14.62

Step-by-step explanation:

3 and (+) square root of 135

3 + square root of 135 (11.62)

3 + 11.62

14.62

Hope this helps!

Answer:

76

because if you get 51-31 = 20, 31- 16= 15, 16-6= 10 and 6- 1= 5. they add each number by using a multiplication of 5

Answer:

A. 82°

B. 144°

C. 75°

D. 150°

E. 241°

F. 80°

Step-by-step explanation:

A circle is 360°

A. 360 - 278 = 82 °

B. 360 - (124 + 92) = 144 °

C. 360 - (255 + 30) = 75 °

D. 360 - (118 + 30 +62) = 150 °

E. 360 - (21 +41 + 57) = 241 °

F. 360 - (30 + 60 + 80 + 110) = 80°

Also, the 80° is congruent so it's the same on both sides.

Answer:

246

Step-by-step explanation:

What question makes you do this much but what ever

Solution:

Given:

Volume of rectangular prism: L x H x B

Use the formula to find the volume.

Finding the volume:

The volume of the rectangular prism is 336 m³.

Answer:

336 meters^3

Step-by-step explanation:

336 meters^3

volume = length x width x height

in this case it would be

6 x 7 x 8 = 336

Answer:

Y=20x is the answer:)

Step-by-step explanation:

Hope this helps!

Answer:

48

Step-by-step explanation:

area of rhombus = Dd/2

area of rhombus = (16)(18)/2 = 144

area of square = 144

side of square = √144 = 12

perimeter of square = 4s = 4(12) = 48

A

Step-by-step explanation:

Answer:

[tex]x[/tex] = 2.8

Step-by-step explanation:

If the quadrilaterals are similar, then the ratios of corresponding sides will be equal:

KL : QR = 4 : 5.6 = 4 / 5.6 = 5/7

JM : PS = 7 : 9.8 = 7 / 9.8 = 5/7

LM : RS = 3 : 4.2 = 3 / 4.2 = 5/7

This shows that the ratio of KJ : QP = 5/7

KJ : QP = 2 : [tex]x[/tex] = 2 / [tex]x[/tex]

Therefore, [tex]\frac{2}{x}=\frac{5}{7}[/tex]

cross multiply:  14 = 5[tex]x[/tex]

Divide both sides by 5:  [tex]x[/tex] = 2.8

Answer:

519

Step-by-step explanation:

an = 8n - 1

a65 = 519

final answer is 519

Answer:

Step-by-step explanation:

Given,

Perimeter of a rectangular pool (P) = 40 feet

Length of the pool (l) = 12 feet

Let,

Width of the pool be = w

As we know,

Therefore,

By the problem,

=> 2(l + w) = P

=> 2(12 + w) = 40

=> 24 + 2w = 40

=> 24 - 24 + 2w = 40 - 24

=> 2w = 16

=> [tex]\frac{2w}{2}[/tex] = [tex]\frac{16}{2}[/tex]

=> w = 8

Hence,

The required width of the pool is 8 feet. (Ans)

Answer:

The Width of the pool would be 8 feet/ft. .

Step-by-step explanation:

According to the Question Given:

Perimeter = 40 ft/feet

Length of the pool = 12 ft/feet

To Find:

The width/breadth of the pool

Solution:

We know that,

[tex] \boxed{\tt \: Perimeter \: of \: Rectangle = 2(l + b)}[/tex]

So Put their values accordingly:

[tex]\longrightarrow \tt \: 40 = 2(12 + b)[/tex]

We got an equation.By this method we can easily find the breadth/width of the pool.

Solve this equation:

[tex]\longrightarrow \tt40 = 2b + 24[/tex]

Flip the equation:

[tex]\longrightarrow \tt2b + 24 = 40[/tex]

[tex]\longrightarrow \tt2b = 40 - 24[/tex]

[tex]\longrightarrow \tt2b = 16[/tex]

Divide both sides by 2:

[tex] \tt\longrightarrow \cfrac{2b}{2} = \cfrac{16}{2} [/tex]

[tex]\tt\longrightarrow \cfrac{ \cancel2 {}^{1} b}{ \cancel2} = \cfrac{ \cancel{16} {}^{8} }{ \cancel2} [/tex]

[tex]\longrightarrow \tt1b = 8[/tex]

[tex]\longrightarrow \tt{b} =\boxed{\tt 8 \: feet}[/tex]

Hence, the breadth/width of the pool would be 8 ft./feet .

[tex] \rule{225pt}{2pt}[/tex]

I hope this helps!