I don’t need you to explain just answer.

Mathematics

1 answer:

Ipatiy [6.2K]3 years ago

5 0

Answer:

domain= {-4,2,3,4}

range = {-4,0,2,3}

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Translate this sentence into an equation.

puteri [66]

Answer:

20 + d = 40

Step-by-step explanation:

It gives you 20 so you just say you want to add Donnie's age to equal 40. In math,

and/sum means add +

is means equals =

3 0

3 years ago

Factoring trinomials

Tcecarenko [31]

$c^2$ $2c^2 + 13c +21 \\4c^2 + 13(2)c + 42\\(2c + 6)(2c+7)\\(c+3)(2c+7)$

This is a way to factoring trinomials (there exist different equivalent methods).

Multiply the trinomial but the term accompanying $c^2$ . This is the second line. Then, you could take the square of the $4c^2$ , ant try to create a factor () () that will correspond to the expression in the second line. That is, we want $4c^2 + 13(2) c + 42 = (2c + ?) (2c + ?)$

In ? we put the corresponding numbers that, if we multiply them we will obtain 42, and if we add them we will obtain 13. This numbers are 6 and 7. Then, we have $(2c + 6) (2c +7)$