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Digiron [165]
3 years ago
7

What’s the sum of c and twice d?

Mathematics
2 answers:
Damm [24]3 years ago
8 0

Answer:

The sum of c and twice d is

c + 2d

<u>-TheUnknownScientist 72</u>

Naily [24]3 years ago
4 0

Answer:

c + 2g

Step-by-step explanation:

g + g = 2g

c + 2g

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3. A bag has five blue marbles, seven red marbles and nine green marbles. Three marbles are drawn
Arte-miy333 [17]

Answer:

The probability is 9/266

Step-by-step explanation:

The first thing to do here is get the total number of marbles = 5 + 7 + 9 = 21 marbles

Now we are drawing the marbles without replacement, this means once a marble is drawn there is a decrease in the total number of marbles left.

The probability of drawing a green marble initially = number of green marbles/ total

number of marbles = 9/21 = 3/7

Now, we want to draw a blue marble

There are 5 blue marbles and we have already drawn one marble from the total. So the probability of drawing a blue marble would be 5/20 = 1/4

And lastly, another green marble

That would make 6 green marbles left and a total of just 19 left. So the probability at this point for green marbles = 6/19

Having and in probability means we multiply all

So this means the probability we are calculating is; 3/7 * 1/4 * 6/19 = 18/(28 * 19) = 9/(14 * 19) = 9/266

7 0
3 years ago
What is Something divided by something equals 140
inn [45]
Answers my vary but what i got is 140 divided by 10 = 14
4 0
3 years ago
Read 2 more answers
What is the factored equation for f(x)=x+x-6
tekilochka [14]

Answer:

f(x)=2(x-3) yup that's the answer

8 0
3 years ago
Which of the following is the portion of a line that starts at one point and goes off in a particular direction to infinity?
NeTakaya
Answer: Vertex
Explanation:
4 0
3 years ago
Read 2 more answers
Describe the error(s) that occurred and show the correct solution.
RideAnS [48]

Answer:

-x^{2}+4x

Step-by-step explanation:

we have

(x^{2}+x)-(2x^{2} -3x)

step 1

Eliminate the parenthesis

x^{2}+x-2x^{2} +3x

The symbol of the term 3x is incorrect, must be positive instead of negative

so

-(-3x)=+3x

Group terms that contain the same variable

(x^{2}-2x^{2})+(x+3x)

Combine like terms

-x^{2}+4x

6 0
3 years ago
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