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erastova [34]
3 years ago
5

Factor 2x^2-4x-30 completely

Mathematics
1 answer:
Elza [17]3 years ago
4 0
2x² - 4x - 30
2(x²) - 2(4x) - 2(15)
2(x² - 4x - 15)
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Twice a number added to a smaller number is 5. The difference of 5 times the smaller number and the larger number is 3. Let
kykrilka [37]

Answer:

The equations that represent the situation are:

2y+x=5

5x-y=3

6 0
3 years ago
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200 divided by 60 for example there are 200 milk cartens each one has 60 milk containers how many milk containers exactly are in
dmitriy555 [2]

Answer:

12,000 containers

Step-by-step explanation:

Given : 200 milk cartens are there

60 milk cantainers are there in each cartens.

to find are there in all

200 × 60 = 12,000 containers in all

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3 years ago
What are the similarities between S waves and surface waves
Nikolay [14]
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3 years ago
A bag contains tickets numbered 1 through 5. Use the probability distribution to determine the probability of drawing an odd num
Makovka662 [10]

Answer:

The probability of drawing an odd numbered ticket is 60%.

Step-by-step explanation:

Odd numbered tickets:

Probability of one is 1/5 plus half of 1/5.

P(X = 1) = \frac{1}{5} + \frac{1}{10} = \frac{3}{10}

Probability of 3 is half of 1/5.

P(X = 3) = \frac{1}{10}

Probability of 5 is 1/5. So

P(X = 5) = \frac{1}{5}

Probability of drawing an odd numbered ticket:

p = P(X = 1) + P(X = 3) + P(X = 5) = \frac{3}{10} + \frac{1}{10} + \frac{1}{5} = \frac{4}{10} + \frac{2}{10} = \frac{6}{10} = 0.6

0.6*100% = 60%

The probability of drawing an odd numbered ticket is 60%.

3 0
3 years ago
who does the number, of zeros in the product of 8 and 5000 compara to the number of zeros in the factors ? explain.
mezya [45]
If one of the numbers we multiply (factors) has zeros at the end, and the other isn't a fraction: all those zeros will stay in the product.

But there might be additional zeros if the other numbers  in the factors (the numbers which aren't 0) mupliply  to  "end" in zero and this is the case here:

8*5=40.

so the product will be 40 and the zeros of the 5000:

40 000

the number of zeros in the product will be bigger than the number of zeros in the factors if the non-zero parts of the fractions multiply to a number with 0 at the end.
4 0
3 years ago
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