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Sliva [168]
3 years ago
10

Evaluate the function f (x) = -4x + 9 at f (3).

Mathematics
2 answers:
sweet [91]3 years ago
4 0
Substituting 3 for x:
-4(3)+9
-12+9
-3
Umnica [9.8K]3 years ago
3 0
<span>Plug in f(x) = 3 to solve 

</span>f (x) = -4x + 9

3 = -4x + 9 

3-9=-4x 

-6=-4x 

-6/-4=x 

6/4=x 

3/2=x 

x=3/2
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3 years ago
Help is for today!!!<br>Ayuda es para hoy.!!<br>​
lorasvet [3.4K]

Answer:

x=20 degrees

Step-by-step explanation:

So, lets recall some things.

First off, opposite angles are the same.

So this would make x equal 20.

But lets test this.

When you look at a X, or any other sort of two lines that cross each other, can you ever think of a time when one side is not the same as the other? No.

This is because when you change one angle, since the lines are crossed together, it will change the opposite angle. This change will always be constant as long as the two lines connect at the same point

So if you changed a 10 degree angle of two lines, so that it was 30, this would change for the other line.

I attached a image below.

I hope this explains this to you and helps! :D

==================================================================

Respuesta:

x = 20 grados

Explicación paso a paso:

Entonces, recordemos algunas cosas.

En primer lugar, los ángulos opuestos son iguales.

Entonces esto haría que x sea igual a 20.

Pero probemos esto.

Cuando miras una X, o cualquier otro tipo de dos líneas que se cruzan, ¿puedes pensar alguna vez en un momento en el que un lado no sea igual que el otro? No.

Esto se debe a que cuando cambia un ángulo, dado que las líneas se cruzan, cambiará el ángulo opuesto. Este cambio siempre será constante siempre que las dos líneas se conecten en el mismo punto

Entonces, si cambia un ángulo de 10 grados de dos líneas, de modo que sea 30, esto cambiaría para la otra línea.

Adjunto una imagen a continuación.

¡Espero que esto te explique esto y te ayude! :D

4 0
3 years ago
How do inequalities work
Minchanka [31]

hmmm in short, the sign is like an opening with a corner > or <, and the value where the opening is, is the greater one, the value towards the corner, is the lesser one.


a > b <--- a is greater than b

b < a <--- a is greater than b

a ⩾ b <-- a is greater than or equals to b

b ⩽ a <--- a is greater than or equals to b

then again, you can also read it as

a > b <--- b is lesser than a.

b < a  <--- b is lesser than a.

5 0
3 years ago
Read 2 more answers
Which expressions are equivalent to 2^5•2^4
muminat
2^9 is the same as your question
7 0
4 years ago
Read 2 more answers
In quadrilateral ABCD, AD // BC. What must the length of segment AD be for the quadrilateral to be a parallelogram?
Cerrena [4.2K]

Answer:

31 units

Step-by-step explanation:

Since the given shape is a parallelogram |AD| = |BC|

3x + 7 = 5x - 9 transfer like terms to same side of the equation

7 + 9 = 5x - 3x add/subtract like terms

16 = 2x divide both sides by 2

8 = x replace x with the value so we can calculate the length of AD

3*8 + 7 = 31

4 0
3 years ago
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