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Stella [2.4K]
2 years ago
10

How do you solve 3b(9b-27)=0

Mathematics
2 answers:
insens350 [35]2 years ago
3 0

Answer:0

Step-by-step explanation:3b(-27 + 9b) = 0

(-27 * 3b + 9b * 3b) = 0

(-81b + 27b2) = 0

pickupchik [31]2 years ago
3 0

Answer:

b=3, or 0

Step-by-step explanation:

\mathrm{Using\:the\:Zero\:Factor\:Principle:\quad \:If}\:ab=0\:\mathrm{then}\:a=0\:\mathrm{or}\:b=0

b=0\quad \mathrm{or}\quad \:9b-27=0

9b-27=0, \mathrm{Add\:}27\mathrm{\:to\:both\:sides}.

9b-27+27=0+27

9b=27

\mathrm{Divide\:both\:sides\:by\:}9

\frac{9b}{9}=\frac{27}{9}

b=3

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Taking squares of both equations we get:

( \frac{x}{6})^{2}=sin^{2} (t) \\  \\ 
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Adding both the equations, we get:

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3 years ago
Your parents ask you to choose between two offers for an allowance. The first offer is to receive one penny on the first day, 2
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5 0
3 years ago
Read 2 more answers
PLEASE HELP!!
Ratling [72]

All these cases represent experiments whose outcomes are all equaly likely. What we mean is that the cards have all the same probability of being dealt (1/52), and all the spaces of the spinner have the same probability of being landed into (1/5).

These probabilities are computed as 1 over all the possible outcomes.

(a) If you want a heart card and a five, you want the 5 of hearts. So, only one card would satisfy your request, and thus you have probability 1/52 of dealing the 5 of hearts.

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(b) There are four 10s and four Jacks in the deck, so 8 cards satisfy your request. With probability 8/52, you'll be dealt a Jack or a 10.

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3 years ago
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3 years ago
In triangle ABC, AB = 11 cm, BC = 9 cm and CA = 10 cm.<br> Find the area of triangle ABC.
max2010maxim [7]

Answer:

Area = 42.43 square cm

Step-by-step explanation:

Using Heron's Formula :

 Area = \sqrt{s\times (s-a) \times (s-b) \times(s -c)} \ , \ where  \ s \ =\ \frac{a+ b+ c}{2}

<em><u>Find Area :</u></em>

<em><u></u></em>

s = \frac{11 + 9 + 10 }{2} = \frac{30}{2} = 15

Area = \sqrt{15 \times ( 15 - 11 ) \times { (15 - 9 ) \times ( 15 -10)}\\\\

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7 0
3 years ago
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