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Gennadij [26K]
3 years ago
11

Factor the expression 3x^2 - 15x a.3x(x^2-5) B.3(x-5) C.3(x^2-5) D.3x(x-5)

Mathematics
1 answer:
GrogVix [38]3 years ago
4 0

Answer:

D. 3x(x-5)

Step-by-step explanation:

3x^2 - 15x

factor out 3 x from the expression

3x x (x-5)

therefore, ur answer is 3x(x-5) or D

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un rectangulo tiene 28 cm de perimetro y unos de sus lados mide 4 cm ¿cuantos cuadrados de 2 cm por lado se mecesitan para armar
seraphim [82]

Answer:

10 cuadrados

Step-by-step explanation:

Si uno de los lados de rectangulo es de 4cm entonces el lado parallelo tambien es de 4cm. Eso nos da 8cm del perimetro y nos quedan los otros dos lados que tienen la misma medida. Entonces dividimos el resto del perimetro por 2.

28 - 8 = 20cm

20cm / 2cm = 10cm

Ahora que tenemos todas las medidas podemos multiplicar el largo por el ancho para calcular el area del rectangulo

10cm * 4cm = 40cm^{2}

el cuadrado de 2cm tendra un area de

2cm * 2cm = 4cm^{2}

Ahora simplemente dividimos el area del rectangulo por el area del cuadrado para saber cuantos cuadrados necesitamos para armar ese rectangulo

40cm^{2} / 4cm^{2} = 10 cuadrados

3 0
3 years ago
Jason has $90 to spend. He wants to purchase a bag for $30, one eraser for $10, and three pencils. Each of the pencils costs the
snow_tiger [21]
90 = 30+10+3x

This equation shows that all the prices of the the bag, eraser, and pencils equals $90. So now all we have to do to find the price of a pencil is solve the equation.

First add the 30 and 10 together.

90 = 40+3x

Then subtract 40 from each side

50 = 3x

Lastly divide each side by 3

x = 16.67

The price per pencil is $16.67

Hope this helps!
4 0
3 years ago
Read 2 more answers
Can I please help me with this question
quester [9]

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3 0
3 years ago
Help me pleasee thanks
Volgvan
The answer will be B
6 0
3 years ago
Point K is rotated 90". The coordinate of the pre-image point K was (2,6) and its image K' is at the coordinate (-6, -2) Find th
tensa zangetsu [6.8K]

Answer:

Clockwise

Step-by-step explanation:

Sorry I answered late

3 0
3 years ago
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