3 years ago

What will be the cost of the paving if cement costs $26.50 per square metre?

Mathematics

1 answer:

WITCHER [35]3 years ago

4 0

Answer: $2203.74

Step-by-step explanation:

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Answer:

1.75 p

Step-by-step explanation:

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3 years ago

In the diagram, what is the measure of angle 1?

grin007 [14]

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Find the area simply your answer

Goshia [24]

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3 years ago

NEED HELP PLEASE!

USPshnik [31]

Answer:

$(x + (3+5i))^2 = x^2 + 6x + (10x+30)i - 16$

Step-by-step explanation:

Complex numbers identity:

The complex numbers identity is:

$i^2 = -1$

Square of the sum:

$(x + y)^2 = x^2 + 2xy + y^2$

In this question:

$(x + (3+5i))^2$

$x^2 + 2x(3+5i) + (3+5i)^2$

$x^2 + 6x + 10xi + 9 + 30i + 25i^2$

$x^2 + 6x + 9 + (10x+30)i - 25$

$x^2 + 6x + (10x+30)i - 16$

$(x + (3+5i))^2 = x^2 + 6x + (10x+30)i - 16$

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3 years ago