3 years ago

Find an explicit rule for the nth term of a geometric sequence where the second and fifth terms are -6 and 162, respectively.

2 answers:

4 0

5th term / 2nd term = r^4 / r = r^3

r^3 = 162/-6 = -27

so r = -3

a1 * r-3 = -6 so first term = 2

an = 2. (-3)^(n-1) Answer

Its B

lana [24]3 years ago

3 0

The answer is B, I have just confirmed it.

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Add and express your answer in scientific notation (5.7 x 10^8) +(3.2 x 10^6)

kaheart [24]

5.7+3.2=8.9

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(8.9+10^14)

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3 years ago

Please answer to receive ten points. I'll vote who answers first the brainliest if its correct.

beks73 [17]

The distance between points $P_1(x_1,y_1)$ and $P_2(x_2,y_2)$ can be calculated using formula

$P_1P_2=\sqrt{(x_2-x_1)^2+(y_2-y_1)^2}.$

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$CB=\sqrt{(-7-(-4))^2+(8-4)^2}=\sqrt{9+16}=\sqrt{25}=5.$

Then

$P_{ABC}=5.657+7+5=17.657\approx 17.7$

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3 years ago

Suppose you have a random variable that is uniformly distributed between 1 and 29. what is the expected value for this random va

Kryger [21]

Assuming the distribution is continuous, you have

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If instead the distribution is discrete, the value will depend on how the interval of number between 1 and 29 are chosen - are they integers? evenly spaced rationals? etc

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3 years ago

hey guys if u can look exercises page with this ill be thankful i just wanna have an a in my test they are like these -8y+12y=3-

blagie [28]

Answer:

okay I'll check then let you know

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vagabundo [1.1K]

Isnt it 15?? since theyre all suppose to be the samw

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4 years ago