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2 years ago

WILL GIVE BRAINLIEST! what is the value of -x - y if -x=(-1/5) and y=(-7/15)

Mathematics

1 answer:

omeli [17]2 years ago

4 0

Answer: 20

Step-by-step explanation:

since i helped can i have brainlist please :D

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9=4/t Math Answer 6th grade problem

miskamm [114]

Multiply by for to get t alone 9 times four is 36

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3 years ago

Teresa received $80 for her birthday. At what rate would she have to invest to have $90 at the end of the year

DiKsa [7]

Saving I don’t know but please let me know :)

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2 years ago

Use the power series for 1 1−x to find a power series representation of f(x) = ln(1−x). What is the radius of convergence? (Note

Viktor [21]

a. Recall that

$\displaystyle\int\frac{\mathrm dx}{1-x}=-\ln|1-x|+C$

For $|x|$ , we have

$\displaystyle\frac1{1-x}=\sum_{n=0}^\infty x^n$

By integrating both sides, we get

$\displaystyle-\ln(1-x)=C+\sum_{n=0}^\infty\frac{x^{n+1}}{n+1}$

If $x=0$ , then

$\displaystyle-\ln1=C+\sum_{n=0}^\infty\frac{0^{n+1}}{n+1}\implies 0=C+0\implies C=0$

so that

$\displaystyle\ln(1-x)=-\sum_{n=0}^\infty\frac{x^{n+1}}{n+1}$

We can shift the index to simplify the sum slightly.

$\displaystyle\ln(1-x)=-\sum_{n=1}^\infty\frac{x^n}n$

b. The power series for $x\ln(1-x)$ can be obtained simply by multiplying both sides of the series above by $x$ .

$\displaystyle x\ln(1-x)=-\sum_{n=1}^\infty\frac{x^{n+1}}n$

c. We have

$\ln2=-\dfrac\ln12=-\ln\left(1-\dfrac12\right)$

$\displaystyle\implies\ln2=\sum_{n=1}^\infty\frac1{n2^n}$

4 0

3 years ago

Please please help desperate me if you see this I really need help ...

mel-nik [20]

Answer:

$32 when 4 movies are rented

Step-by-step explanation:

regular: 8(4) = 32

rewards: 3(4) = 12+ 20 = 32

hope that helps... please mark brainiest

8 0

2 years ago

a vender sold a combined total of 102 sodas and hot dogs. The number of sodas sold was two times the number of hot dogs sold. Fi

maxonik [38]

Answer:

34 hotdogs were sold

68 sodas sold

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2 years ago