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olga nikolaevna [1]
2 years ago
6

Can someone please answer this m

Mathematics
1 answer:
sweet-ann [11.9K]2 years ago
7 0

Answer:

5^-4

1 / 5^4

Step-by-step explanation:

5^3  / 5^7

We know a^b  / a^c  = a^(b-c)

5^(3-7)

5^-4

If you are not allowed to have negative exponents

We know a^-b = 1/a^b

1 / 5^4

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1 / f = 1 / a + 1 / b
Sphinxa [80]

That equation can represent the relationship among the image distance,
object distance, and focal length of a lens. 

It could describe the effective resistance of two resistors in parallel, the
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Thanks for sharing it.  Now, did you have a question to ask ?

6 0
3 years ago
Select the recursive and explicit formula for the Arnold family 2 answers
MariettaO [177]

Answer: The first and last options are correct

Explanation:

The recursive formula is written in terms of the previous term of the sequence. From the information given,

the Arnold's are going to save a nickel on the first day of the month and double the amount each day of the month. Thus, the recursive formula would be

A(n)\text{ = a}_{n\text{ - 1}}\text{ }\times\text{ 2}

where

an - 1 defines a previous term

To write the explicit formula, we would apply the formula for finding the nth term of an arithmetic sequence which is expressed as

An = ar^(n - 1)

where

a is the first term of the sequence

n is the number of terms

r is the common ratio between consecutive terms

Thus,

r = 2 because the amount is doubling each day

n = number of days

a = value of 1 nickel = $0.05

By substituting these values into the formula,

the explicit formula is

A(n) = 0.05(2)^n - 1

7 0
1 year ago
PLEASE ANSWER ASAP: Miriam bought 64 pounds of popcorn she kept 1/4 for her family then gave 1/8 of the remainder to her club an
saw5 [17]

Answer:

84 ounces

Step-by-step explanation:

Total pounds of popcorn bought = 64 pounds

1/4th kept for family ==> 1/4 * 64 = 16 lbs

Remainder = 64-16 = 48 lbs

1/8th of remainder to club ==> 1/8 * 48 = 6 lbs to club

Remainder left over = 48-6 = 42 lbs

Distributed 42 lbs between each of 8 friends equally
Each friend gets 42/8 lbs = (42/8) * 16 = 84 ounces

Since there are 16 ounces in a pound

5 0
2 years ago
Read 2 more answers
HELP ME PLEASEEE! Ty:)
Jlenok [28]
I can help you if you mark me as braì LG
5 0
2 years ago
A customer in a store had two 50% off coupons. She tried to buy a purse with them, gave them to the cashier
antoniya [11.8K]

Answer:

Well, I think that the 50% coupons would give you only 50% off of your entire purchace. Not 100% off.

Step-by-step explanation:

8 0
3 years ago
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