3 years ago

Please help!!! No links

Mathematics

1 answer:

Svetlanka [38]3 years ago

8 0

Answer:

D Not similar

Step-by-step explanation:

For similar triangles the sides are always in proportions.

Here two sides are in proportion but third side isn't. So triangles are not similar.

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Solve for me the slop

Nady [450]

Answer: -1

Step-by-step explanation:

Take 2 random coords from the graph to find the slope

(0,4) and (2,2)

(4-2)/(0-2) = -1

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3 years ago

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6x+40=4x-44 please help

cestrela7 [59]

Answer:

$6x+40=4x-44$

$6x - 4x = - 44 - 40$

$2x = -84$

$x = \frac{ - 84}{2}$

$x = - 42$

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3 years ago

Please can someone show me how to work this out step by step without a calculator

Artyom0805 [142]

$2\sqrt8\times8\sqrt2=(2\times8)\sqrt{8\times2}=16\sqrt{16}=16\times4=64$

Alternatively, you can write radicals as rational exponents, so that you get

$2\sqrt8\times8\sqrt2=2\tiems8^{1/2}\times8\times2^{1/2}=2^{3/2}8^{3/2}$

Then recalling that $2^3=8$ , you have

$2^{3/2}8^{3/2}=2^{3/2}(2^3)^{3/2}=2^{3/2}2^{9/2}=2^{12/2}=2^6=64$