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3 years ago

What is the opposite of 12.75 on a number line

Mathematics

2 answers:

RoseWind [281]3 years ago

8 0

It would be -12.75 because it is the opposite of 12.75

labwork [276]3 years ago

8 0

12.75 on a number line is to your right.

Or another way to write it:

+12.75.

The opposite?

Move it the same distance to the left of 0: or, move 12.75 to the left of 0 instead.

-12.75 instead of +12.75

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A)3 B)2 C)15 D)-3 I Need The Answer Plz Geometry is Tuff

Cerrena [4.2K]

I’m pretty sure Y is 15

7 0

3 years ago

What is the value of X? What is the measure of angle ABC?

gizmo_the_mogwai [7]

Answer:

x=14

Step-by-step explanation:

create an equation out of it. 4x+2x-6=90. Or 6x=84

4 0

3 years ago

Solve for the equation, show all your work. This is an absolute value equation. You need to show both equations and the work for

VMariaS [17]

Answer:

$x=-1$ or $7$

Step-by-step explanation:

We use casework on when $3x-9=12$ and when $3x-9=-12$ .

For the first case, $3x-9=12$ , we add 9 to both sides to get

$3x=21$ .

Dividing both sides by 3 gives

$x=7.$

For the second case, $3x-9=-12$ , we add 9 to both sides to get

$3x=-3$ .

Dividing both sides by 3 gives

$x=-1$ .

Checking both cases, we plug in $x=7$ and $x=-1$ .

For the first case, we have $|3(7)-9|=|21-9|=|12|=12$ , which satisfies the equation.

For the second case, we have $|3(-1)-9|=|-3-9|=|-12|=12$ , which also satisfies the equation.

This gives us two solutions to the equation; $x=7$ and $x=-1$ .

4 0

1 year ago

First one right gets BRAINLIEST!! If f(x)=x²+2x-3 and g(x)=x²-9, find (f/g) 4 and (f+g)(4)

Rasek [7]

Answer:

3 and 28

Step-by-step explanation:

note ( $\frac{f}{g}$ )(x ) = $\frac{f(x)}{g(x)}$

$\frac{f(x)}{g(x)}$

= $\frac{x^2+2x-3}{x^2-9}$ and

( $\frac{f}{g}$ )(4) = $\frac{4^2+2(4)-3}{4^2-9}$ = $\frac{16+8-3}{16-9}$ = $\frac{21}{7}$ = 3

-------------------------------------------------------

(f + g)(x) = f(x) + g(x)

f(x) + g(x)

= x² + 2x - 3 + x² - 9 = 2x² + 2x - 12 and

(f + g)(4) = 2(4)² + 2(4) - 12 = 2(16) + 8 - 12 = 32 + 8 - 12 = 28

6 0

3 years ago

1. Are these two lines parallel, perpendicular or neither?

kolezko [41]

Answer:

parallel

Step-by-step explanation:

they have the same slope, but different y intercepts

8 0

2 years ago