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4 years ago

12

How do I find the factor of the trinomial of y^2+7y-30

1 answer:

wel4 years ago

7 0

Find two numbers that multiply to -30 (last term) and add to 7 (middle coefficient)

The two numbers are 10 and -3
10 times -3 = -30
10 plus -3 = 7

Using those two values gets us the two factors (y+10) and (y-3)

Therefore, y^2+7y-30 factors to (y+10)(y-3)

The equation y^2+7y-30 = (y+10)(y-3) is true for all values of y.

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[(12-5). 12] ÷16=?<br>can I please get some help on this? It would be greatly appreciated

lina2011 [118]

i believe it would be 5.25

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3 years ago

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natta225 [31]

Answer:

4.71 minutes

Step-by-step explanation:

Incomplete question [See comment for complete question]

Given

Shape: Cone

$r = 3$ -- radius

$h = 7$ --- height

$Rate = 14in^3/min$

Required

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First, calculate the volume of the cone.

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This gives:

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To calculate the time, we make use of the following rate formula.

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Make Time the subject

$Time= \frac{Volume}{Rate }$

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$Time= \frac{65.94in^3}{14in^3/min}$

$Time= \frac{65.94in^3}{14in^3}min$

Cancel out the units

$Time= \frac{65.94}{14} min$

$Time= 4.71 min\\$

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3 years ago

That picture is another question

erastovalidia [21]

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3 years ago

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Answer:

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Gennadij [26K]

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3 years ago