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makvit [3.9K]
3 years ago
15

Write a rule for the nth term of the arithmetic sequence. d=2, a12=18. Please explain!

Mathematics
2 answers:
fiasKO [112]3 years ago
8 0
I have no idea what you mean right now.  Can you get a picture of whatever it is you are having trouble on?
Anastasy [175]3 years ago
3 0
1.an = 3n - 1 2. an = 2(2n - 3) 3.an = 4^n 4.an = (2/3)^n 5. an = (-1)^n(n + 5) 6. an = (-1)^n + 1(n + 6) 7. an= n+3/2n-1 8. a1 = -5 and an = an-1 - 3 for n ≥ 2 9. a1 = -6 and an = -2an-1 for n ≥ 2 10.a1 = 4 and an = 3an-1 + 2 for n ≥ 2 11. Find a8 when a1...
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A cube with side length 4p is stacked on another cube with side length 2q^2. What is the total volume of the cubes in factored f
inysia [295]
Volume of the cube with side 4p = 4p x 4p x 4p = 64p³

Volume of the cube with side 2q² =  2q² x  2q² x  2q² = 8q⁶

Total Volume = 64p³ +  8q⁶

Total Volume = (4p)³ + (2q²)³

Total Volume = (4p + 2q²)( ( 4p)² - (4p)(2q²) + (2q²)²)

Total Volume = (4p + 2q²)( 16p² - 8pq² + 4q⁴)

 
Answer:  (4p + 2q²)( 16p² - 8pq² + 4q⁴)
7 0
3 years ago
Read 2 more answers
F(x) = x² + 5x-1 is shifted 3 units right. The result is g(x). What is g(x)?
CaHeK987 [17]

Answer:

D

Step-by-step explanation:

When a function is being shifted to the left, all x values will be added by y units shifted. (The constant that comes with x is excluded, eg. 3x shifted by 2 units left, becomes 3(x+2) and not 3x+2.)

Likewise, when a function is being shifted to the right, all x values will be subtracted by y units shifted. (Constant rules applies as well.)

Given f(x) is shifted 3 units right,

the new function, g(x) becomes:

g(x) = {(x - 3)}^{2}  + 5(x - 3) - 1

Therefore the answer is D in this case.

3 0
1 year ago
Jessica and Raphael are saving money for concert tickets. Jessica has $20 and saves 10 per week.
Burka [1]
They have the same amount on week 5 ($70)
The Answer would be: $70
((Got this correct on my quiz, If you need it explained, It is below))
The easiest way to do this is to not pay attention to the y=x equation, because the solution is already in the information, this may confuse you and youre wasting time to solve it. Jess has $20 BEFORE saving and gets $10 WEEKLY, Raph has $40 BEFORE saving and gets $6 WEEKLY. In the chart/information, add the amount it takes to get Jess up to $40 then add $10 for every week on going until both their balances are equal. They match on the 5th week with $70 // If the information is different substitute the names/numbers/etc. Hope this helped you and anyone else looking for the answer!
8 0
3 years ago
For the following linear equations, determine which inverse operation allows you to determine the solution of the equation. In y
VARVARA [1.3K]

Answer:

see explanation

Step-by-step explanation:

(1)

Given

\frac{n}{5} = - 0.3

Since n is divided by 5 then use the inverse operation, multiplication.

Multiply both sides by 5 to clear the fraction

n = 5 × - 0.3 = - 1.5

(2)

Given

- 2n = 4 \frac{1}{3} ← change to an improper fraction

- 2n = \frac{13}{3}

Since n is multiplied by - 2 then use the inverse operation, division.

Divide both sides by - 2

n = \frac{13}{-6} = - \frac{13}{6}

3 0
3 years ago
What’s the correct answer for this? Select all the ones that apply ?
iris [78.8K]

Answer:

A and D

Step-by-step explanation:

Either rotate the dilated circle 180° about point C or Translate the dilated circle so that it's centre is at point B so that we come to know that the circles are similar

6 0
2 years ago
Read 2 more answers
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