2 years ago

3. For the following geometric sequence, determine a1 and r and find an explicit formula for the sequence: 2, -6, 18, -54…

1 answer:

Vilka [71]2 years ago

4 0

Step-by-step explanation:

a1 is the first term. In this case, 2.

r is the common ratio. Each term is multiplied by -3 to get the next term, so r = -3.

an = 2 (-3)ⁿ⁻¹

You might be interested in

konstantin123 [22]

It has 2 lines of symmetry

7 0

2 years ago

ryzh [129]

Answer:

$\mathrm{78.96 \: cm}$

Step-by-step explanation:

Cylinder volume formula is $\pi r^2h$

$\pi \times 6^2 \times h=904.78$

$36\pi \times h=904.78$

$h=904.78 \div 36\pi$

$h=78.95695$

5 0

3 years ago

hammer [34]

Answer:

Step-by-step explanation:

8 0

2 years ago

alexdok [17]

Box one ratios
Box two 35:2= 70:4

7 0

2 years ago

liberstina [14]

Four hundred eighteen thousandths.......................

8 0

3 years ago