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3 years ago

Write the recursive formula of 13, 9, 5...

Mathematics

1 answer:

lukranit [14]3 years ago

7 0

Step-by-step explanation:

a(n) = a +(n-1)d

a=13

d=9-13=5-9=-4

°.° a(n) = 13 +(n–1)-4

hope this helps

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You can walk 3/4 of a mile in 1/6 of an hour (10 minutes). How far can you walk in an hour?

Hoochie [10]

Answer:

4 and 1/2 miles (or 9/2 miles)

Step-by-step explanation:

I would set this up as a proportion

3/4 x

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Answer:

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2 years ago

Simplify<br><br> 1/4 (1-2/3)^2+1/3

tiny-mole [99]

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3 years ago

Read 2 more answers

A bowl contains 4 red marbles and 3 yellow marbles. Tim randomly draws 3 red marbles from the bowl. He replaces each marble afte

mr Goodwill [35]

So,

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Since he replaces the marble after it is drawn out, the probability of drawing another yellow is the same: $\frac{3}{7}$ .

The probability of drawing a red marble is $\frac{4}{7}$ .

In order to get the probability of drawing 2 yellow marbles and 1 red marble, given that each marble is replaced after it is drawn out, we must multiply the fractions together.

$( \frac{3}{7} )( \frac{3}{7} )( \frac{4}{7} ) = \frac{36}{343}$

Because the order of the marbles doesn't matter, we will multiply the probability by 3.
$3( \frac{36}{343} ) = \frac{108}{343}$

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3 years ago