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lana66690 [7]
3 years ago
13

In a geometric sequence, a2=108 and as 256. Write the explicit formula for this sequence.

Mathematics
2 answers:
torisob [31]3 years ago
8 0

Answer:

The first choice is correct.

Step-by-step explanation:

First work out the common ratio r:-

a2 = a1r and a5 = a1 r^4

So r^3 = a1r^4 / a1r = 256/ 108

r = cube root (256/-108) =  4/3

So the explicit formula is 108(4/3)^(n-1)

mariarad [96]3 years ago
4 0

Answer:

C. 81[-4/3]^n-1

Step-by-step explanation:

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even number between 7 and 16 draw a picture an them write a sentence to explain why it is an even number
mario62 [17]
An even number between 7 and 16 could be 8, 10, 12, or 14. You know they are even number because they always end with a digit of 2, 4, 6, 8, or 0. Also it is divisible by 2. Just draw a number line.<span />
8 0
3 years ago
If Anna have 8000 and gave jim 300 and bought some items a shoes for 290 a suit for 400 and a phone for 2000
vovangra [49]

Answer: Assuming the unit is dollars, the answer would be $5,010.

Explanation:

Step 1: 8000-300 is 7700.

Step 2: 7700-290 is 7410

Step 3: 7410-400 is 7010

Step 4: 7010-2000 is 5010

So, the answer is Anna has $5,010 dollars left after giving Jim $300, buying shoes for $290, a suit for $400 and spending $2,000 dollars on a new phone.

6 0
4 years ago
Fractions or decimals that stop are known as ______ numbers.
wariber [46]

Answer:

Rational

Step-by-step explanation:

Two broad categories of Real Numbers is:

  1. Rational Numbers
  2. Irrational Numbers

Rational numbers are those which can be written in the form of a fraction. When written in form of a decimal, these numbers terminate after few decimals or have a pattern that runs throughout the decimals.

Irrational numbers cannot be written in form of fractions. When written in the form of a decimal numbers, these numbers do not terminate(end) and do not show any pattern.

So, from the above discussion, we can conclude that the answer in the blank will be Rational. Fractions or decimals that stop are known as Rational numbers.

5 0
3 years ago
Read 2 more answers
F∧-1(-2)<br> i need help solving this f to -1 power times -2
elena-14-01-66 [18.8K]

The solution is f².

<h3>How to solve for this</h3>

The question that we have here is of the form f to -1 power times -2. To have a better graphic image we can rewrite it as

f^-^1^(^-^2^)

Now we have to multiply the powers -1 and -2

Remember that in the rules of mathematics, the solution for -1 and -1 = 1

This tells us that - * - = +

Hence we would have -1 * -2

= 2

Therefore the power would be f²

<h3>How do you simplify exponents and powers?</h3>

In order to carry out the simplification of exponents what you have to do would be the multiplication of the exponents that are in the question. The base of the question remains unchanged.

For example, (2³)⁵ = 2³ˣ⁵ = 2¹⁵. For any positive number x and integers a and b: (x^a)^b = x^a^.^b

The exponents here are the numbers that are written above the base. They usually tell us how many times the base would have to be multiplied by itself to get a  solution.

Read more on multiplication of powers here:

brainly.com/question/26130878

#SPJ1

4 0
2 years ago
Does someone want to finish my math class for me? There isn’t a whole lot left
ZanzabumX [31]
How many questions is it if more than 5 no thanks
6 0
3 years ago
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