3 years ago

Simplify the expression 0.8y-1.5-0.2y+3.6

Mathematics

1 answer:

ladessa [460]3 years ago

6 0

Answer:

0.6y+2.1

Step-by-step explanation:

In this question, it is required to simplify the given expression i.e. 0.8y-1.5-0.2y+3.6. It can be done by combining like terms together.

Here y is a variable. We can combine y terms together such that we get :

$=(0.8y-0.2y)-1.5+3.6\\\\=0.6y+2.1$

Hence, the simplified expression is 0.6y+2.1

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Solve the equation. f - 8/9 = 5/9<br> f = ?

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Answer:

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Step-by-step explanation:

f-8/9=5/9

solution

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3 years ago

a quadratic equation has a discriminant of 12. which could be the equation? a.0 = –x2 8x 2 b.0 = 2x2 6x 3 c.0 = –x2 4x 1 d.0 = 4

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Answer:

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Step-by-step explanation:

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We will consider all the given equation one by one

First we will take option a which is $-x^2+8x+2=0$

Discriminant from the equation we will find by the formula

$D=b^2-4ac$

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Now, we will consider option b which is $2x^2+6x+3=0$

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Hence, option b is correct

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