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3 years ago

Factor this trinomial: 5x^2-12x+4 Please show all work I'll give Brainliest

Mathematics

2 answers:

Usimov [2.4K]3 years ago

8 0

Answer:

(x - 2)(5x - 2)

Step-by-step explanation:

5x² - 12x + 4

consider the factors of the product of the coefficient of the x² term and the constant term which sum to give the coefficient of the x- term.

product = 5 × 4 = 20 and sum = - 12

the factors are - 10 and - 2

use these factors to split the x- term

5x² - 10x - 2x + 4 ( factor the first/second and third/fourth terms )

= 5x(x - 2) - 2(x - 2) ← factor out (x - 2) from each term

= (x - 2)(5x - 2) ← in factored form

Vinvika [58]3 years ago

7 0

Answer:

x = 2

x = 2/5

Step-by-step explanation:

multiply 5 and 4

5* 4 = 20

what 2 numbers added make -12 and multiplied make 20 at the same time?

-10 and -2 do this

5 ( x - 10/5) (x - 2/5) = 0

simplify

5 ( x - 2) ( x - 2/5) = 0

(5( x - 2) ( x - 2/5))/5 = 0/5

( x - 2) ( x - 2/5) = 0

x = 2 x = 2/5

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3 years ago

Tara received 28 out of 35 points on her last math test. What percentage score did the teacher record in her grade book for Tara

ZanzabumX [31]

Answer:

80%

Step-by-step explanation:

28/35 = 0.8

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You could use a calculator as described above or using mental math or pencil and paper:

28/35 = 4/5

Simplify.

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Tara (still) gets an 80%.

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2 years ago

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boyakko [2]

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3 years ago

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USPshnik [31]

Answer:

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4 years ago

for independence day celebration 25000 flags were distributed to 70 schools .if 40 shcool receive 250 each and the remainder dis

aleksandr82 [10.1K]

Answer:

500 flags each

Step-by-step explanation:

If 40 schools receive 250 each, then in total, that's 10,000

25,000 - 10,000 = 15,000. There are 30 schools remaining, so we divide. 15,000 / 30 = 500, so...

40 schools get 250 flags each, and the other 30 schools get 500 flags each.

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3 years ago