Salve for X! Please help!!

Mathematics

1 answer:

Natali5045456 [20]3 years ago

3 0

The answer is 10.5.

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Please Help!!!

mylen [45]

B and C are absurd; if a series converges, it must have a sum, but if a series diverges, it cannot have a sum.

Now, notice that

$\dfrac12+\dfrac29+\dfrac4{27}+\dfrac8{81}+\cdots=\dfrac12+\dfrac{2^{2-1}}{3^2}+\dfrac{2^{3-1}}{3^3}+\dfrac{2^{4-1}}{3^4}+\cdots$

That is, we can write the sum more compactly as

$\dfrac12+\dfrac12\displaystyle\sum_{n=1}^\infty\left(\frac23\right)^n$

The series is geometric with common ratio $\dfrac23$ , so the series converges (and thereby has a sum), so the answer is D.

6 0

3 years ago

What point he plot to show how far he runs in 8 minutes and 12 minutes?

Dmitriy789 [7]

Answer:

Step-by-step explanation:

because you subtract it.

8 0

3 years ago

Need help with #1 and #2 on this page. Thanks!

iogann1982 [59]

Find the probability of obtaining 3 heads when flipping 4 coins

7 0

3 years ago

Find the difference. express your answer in simplest form. (2s/s^2-4s+4) - (4/s^2-4s+4)

LUCKY_DIMON [66]

To find the difference, we are going to destroy the parenthesis first, and then, we are going to perform the operations. Remember that to destroy a parenthesis preceded by a negative sign (-), you should change the signs of the factors inside the parenthesis:
$\frac{2s}{s^2-4s+4} -( \frac{4}{s^2-4s+4} )$
$\frac{2s}{s^2-4s+4} -\frac{4}{s^2-4s+4}= \frac{2s-4}{s^2-4s+4}$

Now we can factor both numerator and denominator and simplify:
$\frac{2s-4}{s^2-4s+4} = \frac{2(s-2)}{(s-2)^2} = \frac{2}{s-2}$

We can conclude that the difference in simplest form is: $\frac{2}{s-2}$

5 0

3 years ago

Read 2 more answers

8>3+t/4 what is the answer

salantis [7]

Answer:

Subtract 3 from 8.... 5 > t/4
Multiply both sides by 4... 5/4 > t
The answer is t < 5/4

5 0

3 years ago