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3 years ago

PLS HELP ME WITH THIS

Mathematics

2 answers:

KengaRu [80]3 years ago

7 0

The answer is 4.5. 20% is 22.5, and 15% is 18. subtract them and you get 4.5.

Serhud [2]3 years ago

4 0

Answer:

The answer is 3.5

Step-by-step explanation:

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4 years ago

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Volume of a cube is 1728 cm3.Find its surface area

Leno4ka [110]

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3 years ago

Factor completly 4x^2 +8x -5

DaniilM [7]

∑ Hey, jillianwagler ⊃

Answer:

$\left(2x-1\right)\left(2x+5\right)$

Step-by-step explanation:

<u><em>║Given info║:</em></u>

<em>Factor completely: </em> $4x^2 +8x -5$

<u><em>Solution~:</em></u>

<em>Breaking the expression~: </em> $\left(4x^2-2x\right)+\left(10x-5\right)$

<em>Factor out 2x from 4x² -2x : 2x(2x-1)</em>

<em>Factor out 5 from 10x - 5 : 5(2x - 1)</em>

<em>Put together: </em> $=2x\left(2x-1\right)+5\left(2x-1\right)$

Factor out 2x - 1: $=\left(2x-1\right)\left(2x+5\right)$

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Answer:

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