All categories

3 years ago

Can someone please help me factor 3x^3-19x^2+33x-9

Mathematics

1 answer:

brilliants [131]3 years ago

8 0

Its (3x-1)(x-3)(x-3)

You might be interested in

. Halla la expresión algebraica de un

Assoli18 [71]

Answer:

100*x + 14*y

Step-by-step explanation:

Tenemos que en el sistema decimal un número de 3 cifras se representa de este modo:

100*x + 10*y + z

También es llamado descomposición polinómica y de esta manera podremos encontrar la expresión algebraica.

Nos dicen la relación entre unidades y decenas, 4 veces mayor las unidades que las decenas, por lo tanto:

z = 4*y

Reemplazamos y nos queda:

100*x + 10*y + 4*y

reduciendo nos queda:

100*x + 14*y

Por lo tanto esta sería la expresión algebraica.

3 0

4 years ago

A box of Munchkins contains chocolate and glazed donut holes. If Jacob ate 2 chocolate

neonofarm [45]

Answer:

24 munchkins.

Step-by-step explanation:

Let C be the number of chocolate and D be number of glazed donut holes in the original box.

We are told if Jacob ate 2 chocolate munchkins, then 1/11 of the remaining Munchkins would be chocolate. We can represent this information as:

$C-2=\frac{1}{11}*(C+D-2)...(1)$

We are also told if he instead added 4 glazed Munchkins to the original box, 1/7 of the Munchkins would be chocolate. We can represent this information as:

$C=\frac{1}{7}*(C+D+4)...(2)$

Upon substituting C's value from equation (2) in equation (1) we will get,

$\frac{1}{7}*(C+D+4)-2=\frac{1}{11}*(C+D-2)$

Let us have a common denominator on right side of equation.

$\frac{1}{7}*(C+D+4)-\frac{7*2}{7}=\frac{1}{11}*(C+D-2)$

$\frac{C+D+4-14}{7}=\frac{1}{11}*(C+D-2)$

Multiplying both sides of our equation by 7, we will get,

$7*\frac{C+D-10}{7}=7*\frac{1}{11}*(C+D-2)$

$C+D-10=\frac{7}{11}*(C+D-2)$

Multiplying both sides of our equation by 11, we will get,

$11*(C+D-10)=11*\frac{7}{11}*(C+D-2)$

$11*(C+D-10)=7*(C+D-2)$

$11C+11D-110=7C+7D-14$

$11C-7C+11D-7D=-14+110$

$4C+4D=96$

$4(C+D)=96$

$(C+D)=\frac{96}{4}$

$(C+D)=24$

Therefore, the total number of Munchkins in original box is 24.

3 0

3 years ago

Change the following percentage to fraction<br><img src="https://tex.z-dn.net/?f=116%20%5C%20%5Cfrac%7B2%7D%7B3%7D%20%5C%25" id=

marta [7]

I think the answer is 350/3

3 0

3 years ago

The quotient of a number tripled and 5

Verdich [7]

This would be displayed as

3x/5

5 0

4 years ago

Each music class sings 8 songs a week.how many songs does each class sing in 5 weeks 6 weeks 7 weeks

love history [14]

The answer is fairly simple. Each week they sing 8 songs, and so in 5 weeks they would sing 8x5 songs (which is 40) in 6 weeks, they would sing 8x6 songs (which is 48) and in 7 weeks 7x8 songs (which is 56)

4 0

3 years ago