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anzhelika [568]
2 years ago
11

Is the number written in scientific notation? If not, explain.

Mathematics
1 answer:
PilotLPTM [1.2K]2 years ago
3 0
Scientific\ notation:\ a\cdot10^n\ where\ 1\leq a \ \textless \  10\ and\ n\in\mathbb{Z}\\\\a.\ 0.15\cdot10^4-NOT,\ because\ 0.15 \ \textless \  1.\ Correct\ is\ 1.5\cdot10^3\\\\b.\ 7.06\cdot10^{-8}-YES\\\\c.\ 3.3\cdot100^1-NOT,\ because\ is\ 100,\ not\ 10.\ Correct\ is\ 3.3\cdot10^2
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Negative six multiplied by negative ten is subtracted from eight multiplied by five. Find the number
My name is Ann [436]

Answer:

The answer is -20.

Step-by-step explanation:

(8 × 5) - (-6 × -10)

= 40 - 60

= -20

7 0
2 years ago
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Albert walks 4/5 of a mile in 5/12 of an hour. what was the average speed miles er hour?
NISA [10]

Answer:

3mph

Step-by-step explanation:

his speed per hour will be 3 miles per hour

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2 years ago
URGENT HELP THIS IS FOR DWREAD ONLY
QveST [7]

Answer:

(-1,0) and (3,0)

Step-by-step explanation:

The x-intercepts are the points where the graph crosses the x-axis. (-1,0) and (3,0)

6 0
3 years ago
What is the GCF of 24a^3 b and 36ab^2?<br><br> 2ab<br> 4a^3b<br> 12ab<br> 72a^3b^2
Oksi-84 [34.3K]
12ab will be the right answer.

Since 24a^3 = 12ab(2a^2)

And 36ab^2 = 12ab(3b)
6 0
3 years ago
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Factoring trinomials
Tcecarenko [31]

c^22c^2 + 13c +21 \\4c^2 + 13(2)c + 42\\(2c + 6)(2c+7)\\(c+3)(2c+7)


This is a way to factoring trinomials (there exist different equivalent methods).

Multiply the trinomial but the term accompanying  c^2. This is the second line. Then, you could take the square of the 4c^2, ant try to create a factor () () that will correspond to the expression in the second line. That is, we want 4c^2 + 13(2) c + 42 = (2c + ?) (2c + ?)

In ? we put the corresponding numbers that, if we multiply them we will obtain 42, and if we add them we will obtain 13. This numbers are 6 and 7. Then, we have (2c + 6) (2c +7)

The last step is divide by the number that we multipy in the first step.

4 0
3 years ago
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