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Free_Kalibri [48]
3 years ago
9

Please help show that the following are TRUE.

Mathematics
1 answer:
mafiozo [28]3 years ago
7 0

Answer:

  see below

Step-by-step explanation:

The formula for the sum of an infinite geometric series with first term a1 and common ratio r (where |r| < 1) is ...

  sum = a1/(1 -r)

Applying this to the given series, we get ...

a. sum = 5/(1 -3/4) = 5/(1/4) = 20

b. sum = d/(1 -1/t) = d/((t-1)/t) = dt/(t-1)

_____

The derivation of the above formula is in most texts on sequences and series. In general, you write an expression for the difference of the sum (S) and the product r·S. You find all terms of the series cancel except the first and last, and the last goes to zero in the limit, because r^∞ → 0 for |r| < 1. Hence you get ...

  S -rS = a1

  S = a1/(1 -r)

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MatroZZZ [7]

Answer:

Answer: x = - 4 or x = 14.

Step-by-step explanation:

Rearrange unknown terms to the left side of the equation:3 |5 - x| = 29 - 2Calculate the sum or diff.

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2 years ago
How would you solve y+1= -4x ? with a step by step solution
polet [3.4K]

Answer:

There are an infinite number of solutions.

Step-by-step explanation:

An equation with 2 unknowns give an infinite amount of solutions, here is just one of the many:

Let y= 3 ( y can be any number)

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Generally x and y can be any number, just let x or y be any number, then find the other variable based on the value of the number u assumed.

3 0
3 years ago
A commercial fisherman is (less likely, equally likely, more likely) to need health insurance than a supermarket employee.
Talja [164]

Answer:

A commercial fisherman is  

EQUALLY LIKLEY

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5 0
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Of the 125 gusts invited to a wedding, 104 attended the wedding. What percent of the invited guests attended the wedding?
Nitella [24]

Answer:

0.832 percent or if you need it rounded 83 percent of guests.

Step-by-step explanation:

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Hope this helps!

3 0
3 years ago
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In ΔABC, ∡A is a right angle, and m∡B = 45°. What is the length of BC? If the answer is not an integer, leave it in simplest rad
NikAS [45]
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8 0
3 years ago
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