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Ilya [14]
3 years ago
13

Helo me please please ​

Mathematics
2 answers:
djverab [1.8K]3 years ago
8 0

Answer:

i: 25,000cm

ii: 2.5

iii: 250,000

iiii: 1,187,500

Step-by-step explanation:

drek231 [11]3 years ago
6 0

i) Area = length x width

=250 x 100

= 25000 cm2

ii) it is a square so the sides are equal

Area = 10 x 10

= 100cm2

iii) 25000/100

250 tiles will be needed

Iv) one tile is 4.75 dollars

Total tiles are 250

Cost for tiling

=250 x 4.75

=1187.5

Hope this helps

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alukav5142 [94]

Answer:

<em>Standard form: </em>12x+3y-2=0<em></em>

<em>A = 12, B = 3 and C = -2</em>

<em></em>

Step-by-step explanation:

Given:

The equation:

y= -4x + \dfrac{2}3

To find:

The standard form of given equation and find A, B and C.

Solution:

First of all, let us write the standard form of an equation.

Standard form of an equation is represented as:

Ax+By+C=0

A is the coefficient of x and can be positive or negative.

B is the coefficient of y and can be positive or negative.

C can also be positive or negative.

Now, let us consider the given equation:

y= -4x + \dfrac{2}3

Multiplying the whole equation with 3 first:

3 \times y= 3 \times -4x + 3 \times \dfrac{2}3\\\Rightarrow 3y=-12x+2

Now, let us take all the terms on one side:

\Rightarrow 3y+12x-2=0\\\Rightarrow 12x+3y-2=0

Now, let us compare with Ax+By+C=0.

So, <em>A = 12, B = 3 and C = -2</em>

6 0
3 years ago
Factor this expression:<br><br> mn - 4m - 5n + 20
andrey2020 [161]

Answer:

(m-5) (n-4)

Step-by-step explanation:

mn - 4m - 5n + 20

We will factor by grouping

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Now factor out a m-5

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3 years ago
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salantis [7]

Answer:

the length of ac is 16.

Step-by-step explanation:

Given;

A is right angle, = 90⁰

B is 30⁰

ab = 16√3

              C

              ↓

               ↑

               A   →      ←  B

If this right angle triangle is considered, length bc is the hypotenuse and length ac is the opposite side of angle B.

The length of ac is calculated as follows;

tan \ B = \frac{opposite \ side}{adjacent \ side} \\\\tan \ B = \frac{ac}{ab} \\\\ac = ab \ \times \ tan \ B\\\\ac = 16\sqrt{3} \ \times \frac{\sqrt{3} }{3} \\\\ac = \frac{16 \sqrt{9} }{3} \\\\ac = \frac{16 \times 3}{3} \\\\ac = 16

Therefore, the length of ac is 16.

             

6 0
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alina1380 [7]

Answer:

Step-by-step explanation:

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4 0
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Answer:

Step-by-step explanation:

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