What is the sum of the solutions to (x − 6)(x + 0.7) = 0 ?

Mathematics

2 answers:

damaskus [11]3 years ago

7 0

The answer might be D I don’t know if I’m sure

oksano4ka [1.4K]3 years ago

3 0

The answer is C because you add 6 and subtract .07

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7. If -3 < x < 3, determine c and d for the inequality c < 2x + 1 < d

pogonyaev

Answer:

C= -5

D = 7

Step-by-step explanation:

$- 3 < x < 3 \\ \\ - 6 < 2x < 6 \\ \\ - 6 + 1 < 2x + 1 < 6 + 1 \\ \\ - 5 < 2x + 1 < 7$

6 0

3 years ago

Someone please help me

Tems11 [23]

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Aye Sir!

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3 years ago

Simplify :<br> 26-10/2x5+3

zvonat [6]

Answer:

16/13 is the answer.

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3 years ago

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add the term that makes the given expression into a perfect square. write the result as the square of a bracketed expression c s

Molodets [167]

<h2>Perfect Squares</h2>

Perfect square formula/rules:

$a^2+2ab+b^2=(a+b)^2$
$a^2-2ab+b^2=(a-b)^2$

Trinomials are often organized like $ax^2+bx+c$ .

The <em>b</em> value in this case is <em>c</em>, and it will always equal the square of half of the <em>b</em> value.

Perfect square trinomial: $ax^2+bx+(\dfrac{b}{2})^2$
or $ax^2-bx+(\dfrac{b}{2})^2$

<h2>Solving the Question</h2>

We're given:

$c^2-4c$

In a trinomial, we're given the $ax^2$ and $bx$ values. <em>a</em> in this case is 1 and <em>b</em> in this case is 4. To find the third value by dividing 4 by 2 and squaring the quotient: