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faust18 [17]
3 years ago
12

Write an explicit formula for a_na n ​ , the n^{\text{th}}n th term of the sequence 7, -21, 63, ...7,−21,63,....

Mathematics
2 answers:
lesya692 [45]3 years ago
6 0

Answer:

a_n= 7(-3) n-1

Step-by-step explanation:

ArbitrLikvidat [17]3 years ago
5 0

Answer:

a_n= -3n

Step-by-step explanation:

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What is the GCE of 95 and 120 :
Zarrin [17]

Answer:

the answer to the question is 5

6 0
3 years ago
Read 2 more answers
Marquis wrote the linear regression equation y=1.245x - 3.684 to predict the cost, y, of x songs purchased. Marquis spent $40 on
jasenka [17]
What you should do for this casp is to use the given expression and clear the value of x.
 We have then:
 y = 1.245x - 3.684
 Clearing x:
 1.245x = (y + 3.684)
 x = (y + 3,684) / (1,245)
 Substituting the value of y:
 x = ((40) +3,684) / (1,245) = 35.09
 x = 35
 answer:
 the best estimate of the number of songs that Marquis purchased is 35
4 0
4 years ago
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What does the y-intercept mean in terms of the graph? Select all that apply.
mote1985 [20]
Hello there!

Your answer would have to be C. where the function crosses the y-axis

Hope This Helps!
7 0
4 years ago
A washing machine sells for $201 after being discounted by 40 percent. What was the original price of the washing machine?
olga_2 [115]

Step-by-step explanation:

Let original price be x

Price after 40% discount is $201

Therefore

x × 40% = $201

x = 201 ÷ (40/100)

x = 502.5

Therefore, the original price is $502.5

Hope it helps :)

5 0
3 years ago
What is 0.467 + 0.025?<br> O A. 0.442<br> B. 0.4695<br> C. 0.492<br> OD. 0.717
enyata [817]

Answer:

C. 0.492

Step-by-step explanation:

All I did was add the two numbers. Add them like normal, even though they are in decimal form. You could also use a calculator. If you don't have one, there should be one programed into your phone and computer.

  0.467

+ 0.025

= 0.492

I hope this helps! Please let me know if you have any more questions or need any more help. Have a great day!

5 0
3 years ago
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