2 years ago

GET RIGHT AND GET BRAINLIEST

Mathematics

1 answer:

Gekata [30.6K]2 years ago

5 0

Answer:

Step-by-step explanation:

k=-9

-9×-9

81 square rooted

You might be interested in

X3 - 10 = <br> And x is 6

shtirl [24]

Answer:8

Step-by-stop explanation: (6) x 3 will be 18 - 10 = 8

4 0

3 years ago

Read 2 more answers

Which choice is the explicit formula for the following geometric sequence?0.5, -0.1, 0.02, -0.004, 0.0008, ...

Minchanka [31]

$a_1=0.5\\a_2=-0.1\\a_3=0.02\\a_4=-0.004\\a_5=0.0008\\\\a_n=a_1\cdot q^{n-1}\\\\q=a_2:a_1\to q=-0.1:0.5=-0.2\\\\a_n=0.5\cdot(-0.2)^{n-1}=0.5\cdot(-0,2)^n\cdot(-0.2)^{-1}\\\\=0.5\cdot(-0.2)^n\cdot(-5)=-2.5\cdot(-0.2)^n\\\\\boxed{a_n=-2.5\cdot(-0.2)^n}$