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Reptile [31]
3 years ago
11

Correct answer to -3x-9=3

Mathematics
2 answers:
n200080 [17]3 years ago
7 0
27 is the answer to this question
ohaa [14]3 years ago
4 0
-3x = 3 + 9


-3x = 12


X= - 12 out of 3

X= -4

Hope this helps

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Eliott was trying to factor 6x^2-18 . He found that the greatest common factor of these terms was 6 and made an area model:
Semenov [28]

x²-3

Step-by-step explanation:

The expression given is;

6x²-18

Finding the greatest common factor of the terms and simplifying the expression will be;

Divide the terms by 6 to get;

x²-3

Graphing the expression to find the area model will be as attached;

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Factorizing expressions:brainly.com/question/12290978

Keywords : factor, greatest common factor, terms, area model

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4 0
3 years ago
A box contains 35 gems, of which 10 are real diamonds and 25 are fake diamonds. Gems are randomly taken out of the box, one at a
USPshnik [31]

Answer:

Probability = 0.504

Step-by-step explanation:

Given

Gems= 35

Real = 10

Fake = 25

Required

Determine the probability of selecting two fakes

The probability can be represented as thus: P(Fake\ and\ Fake)

Using the following probability formula, we have:

P(Fake\ and\ Fake) = P(Fake) * P(Fake)

Each probability is calculated by dividing number of fakes by total number of gems:

P(Fake\ and\ Fake) = \frac{25}{35} * \frac{25-1}{35-1}

The minus 1 (-1) represent the numbers of fake and total gems left after the first selection

P(Fake\ and\ Fake) = \frac{25}{35} * \frac{24}{34}

P(Fake\ and\ Fake) = \frac{5}{7} * \frac{12}{17}

P(Fake\ and\ Fake) = \frac{60}{119}

P(Fake\ and\ Fake) = 0.504

<em>Hence, the required probability is approximately 0.504</em>

7 0
3 years ago
Eight minus a number divided by three is greater than or equal to eleven
AfilCa [17]

Answer:

Step-by-step explanation:

8-x/3>=11 is the equation, and the answer is:

x<= -9, so any number less than -9 is correct.

5 0
2 years ago
Read 2 more answers
Solve<br><br> 9x^2 + 42x + 49 = 0
svet-max [94.6K]

Because of the relatively large coefficients {9, 42, 49}, applying the quadratic formula would be a bit messy. Instead, I've chosen to "complete the square:"


9x^2 + 42x + 49 = 0 can be re-written as 9 [ x^2 + (42/9)x ] = -49


Dividing both sides by 9, we get [ x^2 + (42/9)x ] = - 49/9


Completing the square: [ x^2 + (42/9)x + (21/9)^2 - (21/9)^2 ] = -49/9

[ x + 21/9 ]^2 = 441/81 - 441/81 = 0


Then [ x + 21/9 ] = 0, and x = -21/9 (this is a double root).

3 0
3 years ago
PLEASE HELP 70 POINTS
k0ka [10]

Answer:

4a. About 54 times NOT INCLUDING THE FIRST TRIAL

4b. About 60 times NOT INCLUDING THE FIRST TRIAL

Step-by-step explanation:

I say about because we don't know if it's ALWAYS going to be the same results.

4a. Also 12*4 because it's 20 times so 20*4=80 then you add half of it to become 90 and you get 54

4b. 12*5 because 100/5=20 for the 20 trials of them

6 0
3 years ago
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