3 years ago

Given a geometric sequence with a1 = 3 and a4 = 24, find a2.

Mathematics

1 answer:

Phantasy [73]3 years ago

4 0

Answer: 6

Step-by-step explanation:

ax/ay=r^(x-y)

in this case it will be

a4/a1=r^(4-1)

24/3=r^3

8=r^3

r=2

----------------------------------

an=a1×r^(n-1) ⇔ geometric sequence formula

a2=3×2^(2-1)

a2=3×2^1

a2=3×2

a2=6

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Which number is equivalent to 17.02?<br> 17.020 , 17.22 , 17 , 17.002

Irina18 [472]

Answer:

Step-by-step explanation:

17.020

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3 years ago

- Find the slope-intercept form of the equation of the line that passes through (-5, 3) and is parallel to 12x – 3y = 10.

a_sh-v [17]

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3 years ago

Solve the system of equations by graphing. x+y=-9 4x+y=-19

shutvik [7]

For this case we have the following system of equations:

$x + y = -9\\4x + y = -19$

We multiply the first equation by -4:

$-4x-4y = 36$

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$-4x-4y = 36\\4x + y = -19$

We add the equations:

$-4x + 4x-4y + y = 36-19\\-3y = 17\\y = - \frac {17} {3}$

We find the value of the variable "x":

$x = -9-yx = -9 - (- \frac {17} {3})\\x = -9 + \frac {17} {3}\\x = \frac {-27 + 17} {3}\\x = - \frac {10} {3}$

Thus, the solution of the system is:

$(x, y): (- \frac {10} {3}, - \frac {17} {3})$

See the graphic in the attached image

ANswer:

$(x, y): (- \frac {10} {3}, - \frac {17} {3})$

See the graphic in the attached image

4 0

4 years ago

there is a group of 4 people ordering pizza. each person gets 6 slices and there are 8 slices in each. how many pizzas should th

labwork [276]

They should get 3 pizzas.

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4 years ago

Find the square rootV 196

Taya2010 [7]

Answer:

The answer is 14

Step-by-step explanation:

The square root 196

√196 = 14

Thus, The answer is 14

<u>-TheUnknownScientist</u>

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4 years ago