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Natalka [10]
3 years ago
10

Plz help me with my 10 and 11

Mathematics
1 answer:
never [62]3 years ago
8 0

Answer:

10. A, Increases

11. A, Direct

Step-by-step explanation:

Wavelength and frequency are two such characteristics. The relationship between wavelength and frequency is that the frequency of a wave multiplied by its wavelength gives the speed of the wave

Pls can I have brainliest?

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Anna11 [10]

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Step-by-step explanation:

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3 0
3 years ago
What is the sum of the infinite geometric series? Sigma-Summation Underscript n = 1 Overscript 3 EndScripts (1.3) (.8) Superscri
Nimfa-mama [501]

Answer:

<h2>6.5</h2>

Step-by-step explanation:

Given the sum of the series represented as \sum\left {3} \atop {1}} \right (1.3)(0.8)^{n-1}. <u>To get the sum to infinity of the geometric series, we need to get its first term and its common ratio</u>. comparing to the general term of the sum of series of a GP \sum\left {n} \atop {1}} \right (a)(r)^{n-1}

a = first term of the series

r = common ratio

On comparing to the given series, a = 1.3 and r = 0.8

Sum to infinity of a Geometric series is expressed as:

S_ \infty =\frac{a}{1-r}\\ S_ \infty =\frac{1.3}{1-0.8}\\S_ \infty =\frac{1.3}{0.2}\\S_ \infty = 6.5

6 0
3 years ago
Help plz. what is: y+y+2=18
Whitepunk [10]
2y+2=18 Subtract 2 2y = 16 Divide by 2 y = 8 Answer is y = 8
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Read 2 more answers
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