2 years ago

Find a recursive rule for the nth term of the sequence. 5, 20, 80, 320, ...

Mathematics

1 answer:

Ira Lisetskai [31]2 years ago

7 0

Answer:

$a_1 = 5$

$a_n = 4a_{n - 1}$

Step-by-step explanation:

$a_1 = 5$

20/5 = 4

80/20 = 4

320/80 = 4

This a geometric sequence with r = 4.

$a_n = 4a_{n - 1}$

Answer:

$a_1 = 5$

$a_n = 4a_{n - 1}$

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A class is made up of 6 boys and 8 girls. Half of the girls wear glasses. A student is selected at random from the class. What i

Aleks [24]

If half the girls wear glasses, then 8/2 or 4 girls wear glasses.
The whole class is 8+6 or 14 kids.
The probability is the number of girls wearing glasses over the total people in the whole class.

Number of girls wearing glasses/ T<span>otal people in class
</span>
4/14
Simplify= 2/7

Hope this helps :)

5 0

3 years ago

Read 2 more answers

Identify the equation of the circle that has its center at (10, 24) and passes through the origin.

marishachu [46]

Answer:

A ) The Equation of the circle (x−10)2+(y−24)2=676

Step-by-step explanation:

step1:-

The equation of the circle whose center is (a,b) and radius r is

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