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Sergeu [11.5K]
3 years ago
14

Helppp pleaseeeee!!!!!!!

Mathematics
1 answer:
AleksandrR [38]3 years ago
7 0
I’m pretty sure all you have to do is plug in your numbers for example number 5 is y=2x-2 so you would plug in the first number which is -1. So the equation that you solve would be y=2 times -1 minus 2. That would be -4. I hope this helps. If you need further explanation please say so in comments.
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Simplify 3a(a^2-3a+4)-4(3a^3-2a^2)
bogdanovich [222]

Answer:

<h2>−9a³ − a² + 12a</h2>

Step-by-step explanation:

3a(a²-3a+4)-4(3a³-2a²) = 3a³ − 9a² + 12a − 12a³ + 8a²

                                     = (3a³ − 12a³) + (− 9a² + 8a²) + 12a  

                                     = −9a³ − a² + 12a

4 0
3 years ago
What is 420/1000 in simplest form
balandron [24]
The answer would be 21/50. If you have numbers with a few zeros you can cross one of the top amd bottom until you reach the other numbers, if that makes sense. You can changd 420/1000 to 42/100. Then just keep dividing it by a numner that goes evenly into both the numerator and denominator.
8 0
3 years ago
Which function could be represented by the graph on the coordinate plane? 
kodGreya [7K]

Answer:

f(x)=a(x-h)^{2} -k

Step-by-step explanation:

we know that

The equation of a vertical parabola into vertex form is equal to

f(x)=a(x-h)^{2} +k

where (h,k) is the vertex of the parabola

The axis of symmetry is equal to

x=h

In this problem the parabola open upward

so

the coefficient a is positive

The coordinates of the vertex will be (h,-k) (the y-coordinate is negative)

so

the equation will be of the form

f(x)=a(x-h)^{2} -k


5 0
4 years ago
Read 2 more answers
Calcular el valor del ángulo que falta de dun triangulo rectangulo si uno de sus lados mide 25 grados.
Blizzard [7]

Considerando la definición de triángulo rectángulo y sus propiedades, el valor del ángulo que falta de un triángulo rectángulo es 65°.

<h3>Definición de triángulo</h3>

Un triángulo es un polígono que está determinado por tres segmentos de recta que se denominan lados, o por tres puntos no alineados llamados vértices.

En otras palabras, un triángulo es un polígono conformado por tres lados, así como por tres vértices y tres ángulos interiores.

Una de las propiedades de cualquier triángulo indica que la suma de los ángulos interiores es igual a 180°.

<h3>Definición de triángulo rectángulo</h3>

El triángulo rectángulo es una figura geométrica que se considera como un polígono formado por tres lados que forman un ángulo recto y dos ángulos agudos.

En otras palabras, el triángulo rectángulo es aquel que tiene un ángulo interior que es recto, es decir, mide 90º.

<h3>Valor del ángulo faltante en este caso</h3>

En este caso, sabes que:

  • Al ser un triángulo rectángulo, un ángulo interior mide 90°.
  • Otro ángulo interior mide 25°.
  • La suma de los ángulos interiores es igual a 180°.

Entonces, el valor del ángulo faltante se puede calcular mediante:

90° + 25° + ángulo faltante= 180°

Resolviendo:

115° + ángulo faltante= 180°

ángulo faltante= 180° - 115°

<u><em>ángulo faltante= 65°</em></u>

Finalmente, el valor del ángulo que falta de un triángulo rectángulo es 65°.

Aprende más sobre los ángulos de un triángulo:

brainly.com/question/21439270

brainly.com/question/21729438

brainly.com/question/27901271

#SPJ1

8 0
2 years ago
F (x) =5x-6 if 2f (x)
TiliK225 [7]
Please clarify, is it f(x)=2 to solve it?
8 0
3 years ago
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