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2 years ago

27 x 9 How do I solve this

Mathematics

2 answers:

crimeas [40]2 years ago

7 0

Answer:243

Step-by-step explanation:first multiply 9x7 then you get 63 put 3 at the bottom then carry the 6 on top of the 2 then multiply 9x2 then you get 18 add the 6 you put on top of the 2 then you get 243

Tanya [424]2 years ago

5 0

Answer:

you muliply first 9×7 and then carry the remainder to the other side and then 9×2 and add the remainder

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- To make homemade window cleaner, Shivani combines vinegar and water in the ratio of 1:7 by volume. How

rewona [7]

V:W
1:7
1+7=8
1/8*45=5.625 ml of vinegar

8 0

2 years ago

A boy who is flying a kite lets out 300 feet of string which makes an angle of 60o with the ground. Assuming that the string is

Aleks [24]

<h3>Answer :</h3>

See the attachment for better understanding.

Given : Length of string (AC) = 300ft

To Find : Height of the kite from ground (AB)

$:\implies\sf\:sin60^{\circ}=\dfrac{AB}{AC}$

$:\implies\sf\:\dfrac{\sqrt{3}}{2}=\dfrac{H}{300}$

$:\implies\sf\:H=\dfrac{300\sqrt{3}}{2}$

$:\implies\sf\:H=150\sqrt{3}$

$:\implies\:\boxed{\bf{\red{H\approx 260\:feet}}}$

Hope it helps !

6 0

3 years ago

What is the value of x in the equation 1.5(x + 4) – 3 = 4.5(x – 2)?

rjkz [21]

Hello!

Step 1: Simplify both sides of the equation.
1.5(x+4)−3=4.5(x−2)

(1.5)(x)+(1.5)(4)+−3=(4.5)(x)+(4.5)(−2)(Distribute)

1.5x+6+−3=4.5x+−9

(1.5x)+(6+−3)=4.5x−9(Combine Like Terms)

1.5x+3=4.5x−9
Step 2: Subtract 4.5x from both sides.

1.5x+3−4.5x=4.5x−9−4.5x

−3x+3=−9

Step 3: Subtract 3 from both sides.

−3x+3−3=−9−3

−3x=−12

Step 4: Divide both sides by -3.

−3x−3=−12−3

x=4

Hope this helps! Cheerio, and have a lovely day!

7 0

2 years ago

Read 2 more answers

What must be added to both sides in 4x² + 24x + 8 = 32 in order to complete the square?

Sergeu [11.5K]

Answer:

Step-by-step explanation:

To solve a quadratic equation by using the completing the square method, the coefficient of the square term i.e x² must be one (1).

Therefore, we would have to first make the coefficient of x² to be equal to 1.

4x² + 24x + 8 = 32

We would simplify the equation;

4x² + 24x = 32 - 8

4x² + 24x = 24

Divide all through by 4;

x² + 8x = 24

The value to be added = (8/2)² = 4² = 16

x² + 8x + 16 = 8 + 16

x² + 4x + 4x + 16 = 24

x(x + 4) + 4(x + 4) = 24

(x + 4)² = 24

Taking the square root of both sides;

x + 4 = ± 4.9

x = -4 ± 4.9

x = -4 + 4.9 = 0.9

x = -4 - 4.9 = - 8.9

Therefore, 16 must be added to solve the quadratic equation by completing the square method.

6 0

3 years ago

Lana draws a triangle( LMN) on the coordinate plane. What is the perimeter of the triangle( LMN)? Round to the nearest unit.

lys-0071 [83]

Answer:

The answer is "25".

Step-by-step explanation:

Please find the graph in the attachment.

$Longest \ side= 12$

Calculating the triangle two other sides:

$=\sqrt{3^2+6^2}\\\\=(9+36)\\\\=45$

let

$\to \sqrt{45}= 6.7.\\\\\to 6.7\times 2=13.4\\\\\to 13.4+12=25.4 \approx 25$

6 0

2 years ago