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bearhunter [10]
3 years ago
9

What is the 12th term of the sequence? 3, −9, 27, −81, 243, ...

Mathematics
1 answer:
goblinko [34]3 years ago
8 0
The answer would be B. -531,441.

There are 2 ways you can find this.

A. You can find this by starting with 3, and multiply -3 then multiply -3 to each product after that 11 times. Or...

B. Simply find 3 to the 12th power. Then add a negative since each even term (term 2, 4, 6, etc) are negative.

I hope this helps!
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Sophia is buying party favors. She has a budget of $2.75 person for 6 people. How much can Sophia spend on party favors? (I need
yKpoI14uk [10]
Let x represent the amount of money Sophia can spend on party favors. 

x = amount of money Sophia can spend 
$2.75 = amount spent per person
6 = amount of people

Equation:- 

x ÷ $2.75 = 6

Now lets solve for x :-
To solve for x we will use d INVERSE OPERATION of division which is multiplication. Lets do it:-

x ÷ 2.75 = 6
6 × 2.75 = x
6 × 2.75 = 16.50
x = 16.50 

CHECK OUR WORK:-

x ÷ 2.75 = 6
x = 16.50
16.50 ÷ 2.75 = 6
We were RIGHT!!

So, our equation for dis question would be x ÷ 2.75 = 6. When we solve for x, x = 16.50. Sophia can spend $16.50 on her party favors for 6 people. 

Hope I helped ya!! xD 
4 0
3 years ago
(08.04 MC)
skelet666 [1.2K]

Answer:

292,968

Step-by-step explanation:

As we know,

Sum of a geometric sequence (S) = \frac{a(1-r^{n}) }{(1-r)}

where,

a = first term of sequence,

r = the constant ratio,

n = number of terms in sequence.

So, according to the question,

a = 3,

r = 5,

n = 8.

by substituting the values in the above formula, we get;

⇒ S=\frac{3(1-5^{8}) }{(1-5)}

⇒ 292,968

7 0
3 years ago
At dinner, you order a meal that costs $14.
mina [271]

The total cost of the meal will be $17.64.

6 0
3 years ago
Put in order from greatess to least 0.275 0.2 0572 0.725
Mnenie [13.5K]

Answer:

0.725,0.52,0.275,0.2

Step-by-step explanation:

4 0
3 years ago
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Write 38 as the sum of two prime numbers
pychu [463]
38= 19+19.................
8 0
4 years ago
Read 2 more answers
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