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3 years ago

13

Write the expression for the nth term for m9, -27, 81

1 answer:

Varvara68 [4.7K]3 years ago

6 0

I don't think that that "m" belongs in this sequence. Focus on 9, -27, 81, ...

Multiplying 9 by what number produces the product -27?

Mult. -27 by what number produces 81?

This number is called the "common ratio" of this "geometric sequence."

Finish this recursive formula:

a_(n+1) = (a_n) * ( )

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MAVERICK [17]

Applying a dilation centered at the origin with scale factor $k$ has the effect of multiplying both coordinates of a point by $k$ :

$(x,y)\mapsto (kx,ky)$

So, in your case, the coordinates of the points double:

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2 years ago

Keith has a package of 75 marbles.He gave an equal number of marbles to each of his 8 friends. How many marbles will be left ove

Snezhnost [94]

Answer:

9

Step-by-step explanation:

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2 years ago

Does anyone know the answer to this? or how to do it?

Solnce55 [7]

Answer:

( -2 , 0 ) maximum

Step-by-step explanation:

Watch the graph and point out the coordinates.

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With vertex being greater than 0 or positive, its minimum.

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2 years ago

A bag contains 3 red, 4 blue, and 6 yellow marbles. One marble is selected at a time, and once a marble is selected, it is not r

astraxan [27]

The probability of choosing two yellow marbles = 5/26

Step-by-step explanation:

Step 1 :

Given

Total number of marbles in the bag = 13 marbles

Number of yellow marbles = 6.

We choose 2 marbles from the bag without replacing and need to determine the probability that both are yellow.

Step 2 :

Probability of finding yellow marble in the first try = Number of yellow marbles / Total number of marbles = $\frac{6}{13}$

Once the yellow marble is selected we have 5 yellow marbles among 12 remaining marbles in the bag.

Probability of finding yellow marble in the second try = Number of yellow marbles / Total number of marbles = $\frac{5}{12}$

Step 3:

P(yellow in first 2 tries) = P(yellow in first try) * P(yellow in second try)

P(yellow in first 2 tries) = $\frac{6}{13} * \frac{5}{12}$ = $\frac{5}{26}$

Step 4:

Answer:

The probability of choosing two yellow marbles = 5/26

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3 years ago

There is 3/4 of a cake there are 8 friends how much cake does each friend get

nalin [4]

Each student will get 3/32 of the cake :)

6 0

3 years ago