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3 years ago

Please help i dont know how to do any of these 20 POINTS

Mathematics

2 answers:

Nastasia [14]3 years ago

8 0

Answer:

1. A bank deposit of $23.

2. A weight loss of 4 pounds

3. +7 pounds

4.+$17

5.+$10

6.-3 steps

7.-$5

8. +$520

9. -$23

10. -15°

11. +$50 (your not really gaining but your also not losing. But its also not a negative so i believe it +50)

12. +3cm

Step-by-step explanation:

Brainliest plz

laiz [17]3 years ago

4 0

Answer: +23 represents adding $23 to your bank account, -4 represents losing 4 pounds

+17

+10

-3

-5

+520

-23

-15

+50

Step-by-step explanation:

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How can I make this a perfect square<br> w^2-4w+

Neporo4naja [7]

Ax^2+bx+c
if a=1, then
take 1/2 of b and square it

w^2-4w+c
b=-4
-4/2=-2, (-2)^2=4
add that
w^2-4w+4
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8 0

3 years ago

Which statement shows how the product of (x + 7)2 demonstrates the closure property of multiplication?

Illusion [34]

The true statement that show the closure property of multiplication :

<h3>a. x² + 14x + 49 is a polynomial</h3>

$\texttt{ }$

<h3>Further explanation</h3>

<em>If equation ax³ + bx² + cx + d = 0 has roots x₁ , x₂ , and x₃ then</em>

$x_1 + x_2 + x_3 = - \frac{b}{a}$

$x_1 x_2 + x_1 x_3 + x_2 x_3 = \frac{c}{a}$

$x_1 x_2 x_3 = - \frac{d}{a}$

Let us now tackle the problem!

$\texttt{ }$

This problem is about Polynomial.

$(x + 7)^2 = (x + 7)(x + 7)$

$(x + 7)^2 = x^2 + 7x + 7x + 7(7)$

$(x + 7)^2 = x^2 + 14x + 49$

$x^2 + 14x + 49$ is a polynomial.

$x + 7$ is polynomial.

It demonstrates the closure property of multiplication.

$\texttt{ }$

<h3>Conclusion:</h3>

<em>The true statement that show how the product of (x + 7)² demonstrates the closure property of multiplication:</em>

<h3>a. x² + 14x + 49 is a polynomial</h3>

$\texttt{ }$

<h3>Learn more</h3>

Solving Quadratic Equations by Factoring : brainly.com/question/12182022
Determine the Discriminant : brainly.com/question/4600943
Formula of Quadratic Equations : brainly.com/question/3776858

$\texttt{ }$

<h3>Answer details</h3>

Grade: High School

Subject: Mathematics

Chapter: Polynomial

$\texttt{ }$

Keywords: Quadratic , Equation , Discriminant , Real , Number

#LearnWithBrainly

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