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Brrunno [24]
3 years ago
14

Factor using ac-method,  15y+6y²-21= ________

Mathematics
1 answer:
Sunny_sXe [5.5K]3 years ago
3 0
15y+6y^2-21=\\
6y^2+15y-21=\\
3(2y^2+5y-7)=\\
3(2y^2-2y+7y-7)=\\
3(2y(y-1)+7(y-1))=\\
3(2y+7)(y-1)

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ivanzaharov [21]

Answer:

La respuesta podría ser 226.08 o 72π, dependiendo de si quieren que redondees pi o que solo pongas el símbolo.

Step-by-step explanation:

Para hallar el volumen de un cilindro, hay que primero hallar el área del círculo que tiene, por así decirlo. Entonces sería el radio al cuadrado, o sea 3 por 3 porque el diámetro es 6. Y luego lo multiplicamos por pi, y vendría siendo 9π o 9(3.14). Después, lo multiplicamos por la altura, 8 cm. Lo que nos daría 72π, o 226.08 ya redondeado.

7 0
3 years ago
Prove cos a = 5/13 pls solve it and no link pls..........​
Scorpion4ik [409]

<u>Answer</u> : The demonstration is below :)

Step-by-step explanation :

<u>We use Pythagoras' </u><u>theorem </u><u>:</u>

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DB² = AD² - AB² = 13² - 12² = 5²

cos(a) = BD/AD = 5/13

3 0
2 years ago
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Step-by-step explanation:

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Answer:

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Step-by-step explanation:

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3 years ago
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FrozenT [24]
When an operation is performed in one side of an inequality, that same operation must be done with the other sides. The first step is to subtract 6 from each side.

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The simplified result is:

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Utilize a number line for graphing. Create open circles for -2 and 3 since these are the endpoints of the graph. Lastly, draw a line from -2 to 3.
3 0
3 years ago
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