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3 years ago

Please help I have no clue if you can please do step by step explaining

Mathematics

1 answer:

Dominik [7]3 years ago

7 0

Answer:

36cm^2

Step-by-step explanation:

Break it apart into rectangles/squares where you can figure out what the length of at least two sides are for each.

Then multiply and get the area of the smaller area.

Then add the areas up.

You're basically just breaking it down into smaller shapes, then adding the different parts back together.

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Last month haos dog ate 40 cans of dog food in thirty days how many cans should hao buy to feed his dog for the next six days

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3 years ago

Select the two values of x that are roots of this equation. 2x-5=-3x^2

lakkis [162]

Answer:

A & D

Step-by-step explanation:

=> 3x²+2x-5 = 0

=> Using Mid-term Break Formula

=> 3x²-3x+5x-5 = 0

=> 3x(x-1)+5(x-1) = 0

=> (3x+5)(x-1) = 0

Either,

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x = $-\frac{5}{3}$ OR x = 1

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3 years ago

Please please please help

Mnenie [13.5K]

Answer: D

Step-by-step explanation: solve it by substitution

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3 years ago

Work out the lengths of sides a and b.

Jlenok [28]

They are right triangles so you can use the Pythagorean theorem.

A = sqrt(5^2+3^2)

A = sqrt(25+9)

A = sqrt(34) (exact answer)

As a decimal it would be: 5.8

B = 45 = sqrt( 20^2 + b^2)

B^2 = 45^2-20^2

B^2 = 2025-400

B^2 = 1625

B = sqrt(1625)

B = 5sqrt(65) exact answer

As a decimal : 40.3

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3 years ago

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