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DochEvi [55]
3 years ago
12

Given the recursive formula for a geometric sequence find the common ratio, the first four terms, and the explicit formula.

Mathematics
1 answer:
Dahasolnce [82]3 years ago
4 0
Since a(n)=-3(a(n-1)) the common ratio is -3, and a(1)=-3 so

a(n)=-3(-3^(n-1)) so the first four terms are:

-3, 9, -27, 81
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5x +7 y=-17<br> 4x – 3y = -5<br> Substitute.
Bond [772]

Answer:

(x,y) = (-2, -1)

Step-by-step explanation:

We start off by substituting the value of "x".

5x+7y=-17

x=-\frac{5}{4} + \frac{3}{4}y

We then solve 55(-\frac{5}{4}+\frac{3}{4}y ) +7y= -17

y=-1 *Substitute the value of "y"

x= --\frac{5}{4}+\frac{3}{4}x(-1)

x=-2

\left \{ {{-17=-17} \atop {-5=-5}} \right. This works.

5 0
3 years ago
Which set of ordered pairs is a function?
DochEvi [55]
A function is a set of ordered pairs in which no two different ordered pairs have the same x -coordinate. An equation that produces such a set of ordered pairs defines a function. What is the catch? There can be at most one output for every input.
4 0
3 years ago
Which variable expression matches the word phrase? Column A Column B
erik [133]
<span>1. the sum of 12 and the quotient of 9 and a number

The responder's answer is not given but it can be 12 + (9 / n)

2. </span>the difference of 12 and the product of 9 and a number

The responder's answer would be <span>c. 12 – 9y

3</span>. the difference of 12 and the quotient of 9 and a number

The responder's answer would be <span>b. 12 – (9 ÷ y)
</span>
<span>4. 12 more than quotient of a 9 and number
</span>
The responder's answer would be<span> a. 12 + (9 ÷ y)</span>






4 0
3 years ago
Math need help have a picture should not take long if you know how to do it I will mark you the brainlest
krok68 [10]
I’m sorry don’t hate me i just answering so i can ask
8 0
3 years ago
If 450 birds have to fit into 18 enclosures, &amp; there are 3 enclosures in each section of the zoo, how many birds are in each
ANEK [815]
<h3>Answer:</h3>

There are 75 birds in each section

<h3>Step-by-step explanation:</h3>

First, lets see how many in each enclosure so we have an amount to multiply by 3

450/18 = 25 birds per enclosure.

Now lets see how many birds would be in 3 enclosures i.e. a section

25 * 3 = 75

3 0
3 years ago
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