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Helga [31]
3 years ago
15

Which expression is equivalent to the given expression? (3y – 4) (2y + 7) + 1ly – 9

Mathematics
1 answer:
PilotLPTM [1.2K]3 years ago
8 0

Answer:

6y²+40y--27

Step-by-step explanation:

(3y – 4) (2y + 7) + 1ly – 9

6y² + 21y -- 8y --28 + 11y --9

6y²+40y--27

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Answer: b or Rebecca's answer

Step-by-step explanation: brainlest please

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4 years ago
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Nancy has 8 meters of rope. How many pieces of rope of length 1/2 meter can she cut from it
Akimi4 [234]

Answer:

16

Step-by-step explanation:

8 divided by 1/2 is

8 times 2

which is

16

4 0
3 years ago
I have no idea how to even begin with this
Leviafan [203]
We have two similar triangles, the one as a whole and the one inside of it. To calculate the height of the flagpole we can set up a proportion. First calculate the length of the base of the smaller triangle.

16.60 - 12.45 = 4.15m

The height is 1.65m, set up a proportion:

\sf\dfrac{1.65}{4.15}=\dfrac{x}{16.60}

Cross multiply:

\sf 27.39=4.15x

Divide 4.15 to both sides:

\sf x=\boxed{\sf 6.6m}

So the height of the flagpole is 6.6 meters tall.

5 0
4 years ago
Mi abuela dio a luz a mi padre, cuando ella tenia menos de 20 años,y yo naci cuando mi padre tenia mas de 25años , si mi padre t
Svetllana [295]

Answer:

The father was either 29 or 28 years old when the author of the question was born.

El padre tenía 29 o 28 años cuando nació el autor de la pregunta.

Step-by-step explanation:

English Translation

My grandmother gave birth to my father, when she was under 20 years old, and I was born when my father was over 25 years old, if my father is now under 45 years old and I was in my fourth year of high school, how old is my father when I was born.

Solution

Assuming that the author of the question is a typical fourth year high school student.

The age of fourth year high school students normally range from 16 to 17.

The father is currently 45 years old, so the age of the father when the author of the question was born is given as

(45 - 16) or (45 - 17)

= 29 or 28 years old.

which satisfies the condition given in the question that the father was more than 25 years old!

Hope this Helps!!!

In Spanish/En español

Asumiendo que el autor de la pregunta es un típico estudiante de secundaria de cuarto año.

La edad de los estudiantes de cuarto año de secundaria normalmente oscila entre 16 y 17.

El padre tiene actualmente 45 años, por lo que la edad del padre cuando nació el autor de la pregunta se da como

(45 - 16) or (45 - 17)

= 29 o 28 años.

que satisface la condición dada en la pregunta de que el padre tenía más de 25 años!

¡¡¡Espero que esto ayude!!!

5 0
3 years ago
Y= x^2+6x+4 <br> axis of symmetry:<br> vertex:
Juliette [100K]

Answer:

vertex (-3,-5) axis of symmetry x = -3

Step-by-step explanation:

4 0
3 years ago
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