Ask question

Ask question

All categories

xxTIMURxx [149]

2 years ago

15

What is a factor for -20?

2 answers:

liubo4ka [24]2 years ago

6 0

Answer:

factors are 2 and 5.

Step-by-step explanation:

Factors are numbers which you can multiply together to get another number. For Example : The numbers 2 and 3 are factors of 6 because 2 x 3 = 6. A number can have many factors! Example : 2 and 4 are factors of 8, because 4 x 2 = 8. Also 1 and 8 can also be factors of 8, because 1 x 8 = 8.

on prime factorization, we get the factors of 20 as,

2 x 2 x 5 = 20.

Essentially, to factor a negative number, find all of its positive factors, then duplicate them and write a negative sign in front of the duplicates. For instance, the positive factors of −3 are 1 and 3.

-2 x 2 x 5 = -20

2 x 2 x -5 = -20

Elena L [17]2 years ago

4 0

Answer:

1 ,2,4,5,10,-1,-2,-4,-5,-10,20

You might be interested in

Y-intercept of a line that has a slope of 2 and passes<br> through the point (4, 6).

tia_tia [17]

Answer:

<h2> b = -2</h2>

Step-by-step explanation:

The point-slope form of equation is: y - y₀ = m(x - x₀), where (x₀, y₀) is any point the line passes through and m is the slope.

m = 2

(4, 6) ⇒ x₀ = 4, y₀ = 6

So, the point-slope form of equation:

y - 6 = 2(x - 4)

Changing to the slope-intercept form of the equation of the line (y = mx + b, where m is the slope and b is the y-intercept of the line):

y - 6 = 2x - 8 {add 6 to both sides}

y = 2x - 2 ⇒ b = -2

6 0

2 years ago

Given ABC find the values of x and y. In your final answer, include all of your calculations.

kow [346]

So with this, we will be using proportions. To solve for x, our proportion will be $\frac{x}{6} =\frac{6}{x-9}$

Firstly, cross-multiply: $x^2-9x=36$

Next, subtract 36 on both sides: $x^2-9x-36=0$

Next, replace -9x with 3x-12x $x^2+3x-12x-36=0$

Next, factor x^2+3x and -12x-36 separately: $x(x+3)-12(x+3)=0$ . After, rewrite it as $(x-12)(x+3)=0$

Next, solve for x separately in the two parentheses:

$x-12=0\\ x=12$

$x+3=0\\ x=-3$

Since we can't have a negative length, x = 12.

To solve for y, our proportion will be $\frac{y}{9} =\frac{12}{y}$

Firstly, cross-multiply: $y^2=108$

Next, just square root each side, and your answer will be (rounded to hundredths) $y=10.39$

In short, x = 12 and y = 10.39.

5 0

2 years ago

A 500 foot tall building is a represented by a model that is 25 inches tall using the same scale what is the height of the model

alexgriva [62]

Answer:

Step-by-step explanation:

500 divide by 25= 20

18÷360=20

8 0

2 years ago

2x + 9 = -7<br><br> What does x equal to ?

muminat

Answer:

-8

Step-by-step explanation:

2x + 9 = -7

Subtract 9 from both sides

2x = -16

Divide both sides by 2

x = -8

7 0

2 years ago

-2 (7– 5x – 3) = -2(7 + -5x x +<br> -14 +<br> 10 х +<br> =<br> -14 +<br> 10 х<br> +<br> 10 х

Taya2010 [7]

Answer:

Step-by-step explanation:

make the question clearer homie urs makes no sense

8 0

2 years ago