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antiseptic1488 [7]
3 years ago
10

The distance between -18 and 15 is equal to a. 18-15 b. -18-15 c. 15-18 d. 15-(-18)

Mathematics
1 answer:
Feliz [49]3 years ago
6 0

Answer:

d. 15-(-18)

Step-by-step explanation:

Take the second point and subtract the first point

15 - (-18)

15 + 18

33

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Step-by-step explanation:

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One factor of 7x2 + 33x – 10 is
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7x^{2} +33x-10=0

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7x - 2 = 0\\\implies \boxed{\bold{x = \frac{2}{7} }}

x+5=0\\\implies \boxed{\bold{x=-5}}

6 0
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Find the radius of convergence, r, of the series. ? n2xn 7 · 14 · 21 · ? · (7n) n = 1
defon
I'm guessing the series is supposed to be

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\displaystyle\lim_{n\to\infty}\left|\frac{\frac{(n+1)^2x^{n+1}}{7\cdot14\cdot21\cdot\cdots\cdot(7n)\cdot(7(n+1))}}{\frac{n^2x^n}{7\cdot14\cdot21\cdot\cdots\cdot(7n)}}\right|

The first n terms in the numerator's denominator cancel with the denominator's denominator:

\displaystyle\lim_{n\to\infty}\left|\frac{\frac{(n+1)^2x^{n+1}}{7(n+1)}}{n^2x^n}\right|

|x^n| also cancels out and the remaining factor of |x| can be pulled out of the limit (as it doesn't depend on n).

\displaystyle|x|\lim_{n\to\infty}\left|\frac{\frac{(n+1)^2}{7(n+1)}}{n^2}\right|=|x|\lim_{n\to\infty}\frac{|n+1|}{7n^2}=0

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3 0
3 years ago
If x=9 and y=−3, evaluate the following expression:7(2x−3y)​
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Answer:

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Step-by-step explanation:

You can replace the values of x with 9 and the values of y with (-3).

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7 0
3 years ago
Read 2 more answers
Plz I need helpppp!!!!
allochka39001 [22]

Answer:

Just Guess

Step-by-step explanation:

You Have More Than One Try... Thats What I Do With Multiple Awnsers

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