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mash [69]
3 years ago
15

Evaluate f(−1)=−3x^3 + 2x^2

Mathematics
1 answer:
Sholpan [36]3 years ago
5 0

Answer:

5

Step-by-step explanation:

f(-1)= -3(-1)³+2(-1)²

= -3(-1)+2(1)

= 3+2

=5

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Ayuda con esto tengo muchos deberes y nececito terminarlos ahora, por favor ayuda :( .María y Nancy son vecinas, y todas estas s
Alex Ar [27]

Answer:

Nancy gastó 8,58 dólares.

Step-by-step explanation:

Para calcular cuánto dinero gastó Nancy, debemos hallar la relación entre Nancy y María, tal como sigue:

M = 3N    (1)

En donde M es por María y N por Nancy

En la relación de la equación (1) tenemos que el dinero que gastó María es 3 veces lo que gastó Nancy, tal como dice el enunciado.

Entonces, podemos hallar ahora cuánto gastó Nancy:

N = \frac{M}{3} = \frac{25,75}{3} = 8,58

Por lo tanto, Nancy gastó 8,58 dólares.  

Espero que te sea de utilidad!

3 0
3 years ago
Y=1/6x+1<br> Y=-6x+2<br> Is this perpendicular or parallel lines
Kamila [148]
Perpendicular.
Parallel lines will have the same slope (1/6 and 1/6 or -6 and -6)
Perpendicular lines will have opposite reciprocal slopes. (1/6 and -6)
7 0
3 years ago
Read 2 more answers
Which is the factorization of 8x2 13x – 6? (8x – 3)(x 2) (x – 6)(8x 1) (2x – 2)(4x 3) (4x – 1)(2x 6)
vagabundo [1.1K]

we have

8x^2+13x - 6

Equate the function to zero

8x^2+13x - 6=0

Group terms that contain the same variable, and move the constant to the opposite side of the equation

8x^2+13x = 6

Factor the leading coefficient

8(x^2+\frac{13}{8}x) = 6

Complete the square. Remember to balance the equation by adding the same constants to each side.

8(x^2+\frac{13}{8}x) = 6

8(x^2+\frac{13}{8}x+\frac{169}{256}) = 6 +\frac{169}{32} \\ \\ 8(x+\frac{13}{16} )^{2} =\frac{361}{32} \\ \\ (x+\frac{13}{16} )^{2} =\frac{361}{256}\\ \\ (x+\frac{13}{16} ) =(+/-)\sqrt{\frac{361}{256}} \\ \\ (x+\frac{13}{16} ) =(+/-)\frac{19}{16}  \\ \\ x1=-\frac{13}{16} +\frac{19}{16} =\frac{6}{16}\\ \\ x2=-\frac{13}{16} -\frac{19}{16}=-2

the factorization is equal to

8*(x-\frac{6}{16} )*(x+2)=(8x-3)*(x+2)

therefore

<u>the answer is</u>

(8x-3)*(x+2)




3 0
3 years ago
Read 2 more answers
If f(8) =4, identify a point on the graph of f
il63 [147K]
If f(8)=4 that means that if you plug 8 on as x in whatever the equation of f is you will get 4 as answer therefore (8,4) is a point on the graph
4 0
3 years ago
Find the axis of symmetry and the vertex of<br> the equation below.<br> n^2+ 6n = 0
IrinaK [193]

Answer:

axis of symmerty = x coordinate of vertex = -b/2a

-6/2 = <u>-3 = x</u>

<u />

vertex = (-3,y)

-3^2 +6(-3)

9-18 = -9 = y

<u>(-3,-9) = vertex</u>

Step-by-step explanation:

6 0
3 years ago
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