3 years ago

TIME REMAINING

Mathematics

1 answer:

Digiron [165]3 years ago

4 0

Answer:

B(-5,-2) is the answer of the times

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How many pairs of whole numbers have 75 as their product Show your work

Minchanka [31]

I think you mean factors? The factors of 75 are 1, 3, 5, 15, 25 and 75.

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3 years ago

12 times 1/8 how do you cross multiply this

ra1l [238]

Answer:

12/1 times 1/8 = 1.5

Step-by-step explanation:

You multiply 12 by 1 to get 12, then divide 12 by 8 to get 1.5

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The perimeter of a rectangle is 34 it's width is 6.5. Write and equation to determine the length

SashulF [63]

$34 = 2(6.5) + 2(l)$

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A geometric sequence is defined by the equation an = (3)3 − n.

Delvig [45]

PART A

The geometric sequence is defined by the equation

$a_{n}=3^{3-n}$

To find the first three terms, we put n=1,2,3

When n=1,

$a_{1}=3^{3-1}$

$a_{1}=3^{2}$

$a_{1}=9$
When n=2,

$a_{2}=3^{3-2}$
$a_{2}=3^{1}$

$a_{2}=3$

When n=3

$a_{3}=3^{3-3}$

$a_{3}=3^{0}$
$a_{1}=1$
The first three terms are,

$9,3,1$

PART B

The common ratio can be found using any two consecutive terms.

The common ratio is given by,
$r= \frac{a_{2}}{a_{1}}$
$r = \frac{3}{9}$

$r = \frac{1}{3}$

PART C

To find
$a_{11}$

We substitute n=11 into the equation of the geometric sequence.

$a_{11} = {3}^{3 - 11}$

This implies that,

$a_{11} = {3}^{ - 8}$

$a_{11} = \frac{1}{ {3}^{8} }$

$a_{11}=\frac{1}{6561}$

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3 years ago

4. Which fraction can be used to form a proportion with the following fraction? 3

LenaWriter [7]

3/1

Step-by-step explanation:

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