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slamgirl [31]
2 years ago
6

What is 2/5 as a decimal?

Mathematics
2 answers:
GuDViN [60]2 years ago
6 0

Answer:

0.4

Step-by-step explanation:

2/5 (2 divided by 5)

sweet-ann [11.9K]2 years ago
3 0

Answer:

0.4

Step-by-step explanation:

To convert a fraction to a decimal, divide its numerator by its denominator.

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Find the area between the graph of the function and the x-axis over the given interval, if possible.
vodomira [7]

Answer:

A= -\frac{5}{-1} - \lim_{x\to\infty} \frac{5}{x-2} = 5-0 = 5

So then the integral converges and the area below the curve and the x axis would be 5.

Step-by-step explanation:

In order to calculate the area between the function and the x axis we need to solve the following integral:

A = \int_{-\infty}^1 \frac{5}{(x-2)^2}

For this case we can use the following substitution u = x-2 and we have dx = du

A = \int_{a}^b \frac{5}{u^2} du = 5\int_{a}^b u^{-2}du

And if we solve the integral we got:

A= -\frac{5}{u} \Big|_a^b

And we can rewrite the expression again in terms of x and we got:

A = -\frac{5}{x-2} \Big|_{-\infty}^1

And we can solve this using the fundamental theorem of calculus like this:

A= -\frac{5}{-1} - \lim_{x\to\infty} \frac{5}{x-2} = 5-0 = 5

So then the integral converges and the area below the curve and the x axis would be 5.

7 0
3 years ago
John is solving x^2 + 4x + 8=0 by completing the square. Which step would be part of John's solution.?
SOVA2 [1]

Answer:

(x + 2) ^{2}  =  - 8

Step-by-step explanation:

{x}^{2}  + 4x + 8 = 0 \\  {x }^{2}  + 4x =  - 8 \\  {x}^{2}  + 4x + 4 =  - 8   + 4 \\ ( x + 2)^{2}  =  - 4

3 0
2 years ago
Help help help help help
SIZIF [17.4K]

Answer:

1) 2b + 6

2) 8w - 12

3) 2b + 6 + 6x + 20

4) 9w^2 + 27 + 8 - 27

5) Sorry.

Step-by-step explanation:

8 0
3 years ago
It takes Chad six hours to put his own miniature bike together . If Andrew helps him, it only takes four hours. How long would i
wel

Answer:

it would take 10 hours

Step-by-step explanation:

8 0
3 years ago
What is the denominator of 7/9
Lina20 [59]

Answer:

9

Step-by-step explanation:

The denominator of a fraction is always the bottom number, while the top number is always the numerator.

5 0
3 years ago
Read 2 more answers
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