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3 years ago

What is recursive rule for the sequence?

Mathematics

2 answers:

Sphinxa [80]3 years ago

5 0

$a_{n}=9(-5)^{n-1}
\\ \\ a_{1}=9*5^{1-1}=9
\\ \\ a_{1}=9
\\ \\r=-5
\\ a_{n}=-5a_{n-1}

 This is geometric sequence, correct answer is A.
$

Diano4ka-milaya [45]3 years ago

5 0

It should be the first one an = -5 (an -1), a1 =9

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Add the following rational number7/-27 and 11/18

poizon [28]

Answer:

19/54

Step-by-step explanation:

- 7/27 + 11/18

LCM of the 27, 18 is 54

- 7/27 * (2/2) + 11/18 * (3/3)

- 14/54 + 33/54

33 - 14/54

19/54

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1 year ago

How much warmer is 82 than 40?

Lorico [155]

Answer:82 is 42 degrees warmer than 42

Step-by-step explanation:

42-82=42

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2 years ago

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Need an explanation on number 44 to why E is correct

aliina [53]

Before we can make sure that E is correct, we need to make the denominator is equal with questions and the choices or convert into decimal.

2/3 = 0.66

1/3=0.33

1/5=0.2

2/6=1/3 = 0.33

1/2 = 0.5

7/10 = 0.7

7/9 = 0.77

The question is :

2/3 < x < 7/9

0.66 < x < 0.77

We need to divide into 2 parts :

0.66 < x

x < 0.77

So we need to find the answer that x is greater that 0.66 and we got 7/10. And 7/10 is less than 7/9.

Hope this helps. Please ask if you don't understand.

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2 years ago

What is 1.0836 rounded to the nearest thousandth

sp2606 [1]

1.084 because it goes tenths hundredths thousands

4 0

2 years ago

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The Jones family has saved a maximum of $750 for their family vacation to the beach. While planning the trip, they determine th

Lemur [1.5K]

Answer:

Value of h greater than 5.4 will make inequality false.

Step-by-step explanation:

This question is incomplete; here is the complete question.

The Jones family has saved a maximum of $750 for their family vacation to the beach. While planning the trip, they determine that the hotel will average $125 a night and tickets for scuba diving are $75. The inequality can be used to determine the number of nights the Jones family could spend at the hotel 750 ≥ 75 + 125h. What value of h does NOT make the inequality true?

From the given question,

Per night expense (expected) = $125

If Jones family stays in the hotel for 'h' days then total expenditure on stay = $125h

Charges for scuba diving = $75

Total charges for stay and scuba diving = $(125h + 75)

Since Jones family has saved $750 for the vacation trip so inequality representing the expenses will be,

125h + 75 ≤ 750

125h ≤ 675

h ≤ $\frac{675}{125}$

h ≤ 5.4

That means number of days for stay should be less than equal to 5.4

and any value of h greater than 5.4 will make the inequality false.

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2 years ago