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3 years ago

400, 480, 576, 691.2, 829.44,

Mathematics

1 answer:

Rama09 [41]3 years ago

3 0

Answer: The sequence is geometric

Step-by-step explanation:

A geometric sequence is a sequence in which any term after the first term is gotten by multiplication of the previous term by a common ratio , r which is a constant throughout the terms.

While an Arithmetic Progression is a sequence in which any term after the first term is gotten by addition of the previous term by a constant known as the common difference, d.

From this sequence ,400, 480, 576, 691.2, 829.44,

,we can see that the next term is gotten by Multiplication of the previous term by 1.2 .

This was gotten using the formula of common ratio, r which equals

a2/ a= 480/400= 1.2

a3/a2 = 576/ 480= 1.2

a4/a3= 691.2/ 576=1.2

a5/a4= 829.44/ 691.2

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Help 13 points!!!!!!!!

DIA [1.3K]

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3 0

3 years ago

Circle X has radius r X = 6 units and circumference C X = 12 π units. Circle Y has circumference C Y = 6 units. Which equation i

slega [8]

Answer:

$ry=\frac{rx}{2\pi }$

Step-by-step explanation:

we know that

The circumference of a circle is equal to

$C=2\pi r$

we have

<em>Circle X</em>

$rx=6\ units$

$Cx=12\pi\ units$

<em>Circle Y</em>

$Cy=6\ units$

Find the radius ry

we know that

$Cy=2\pi ry$

substitute the value of Cy

$6=2\pi ry$

$ry=\frac{6}{2\pi }$

Remember that the value of rx is $rx=6\ units$

substitute

$ry=\frac{rx}{2\pi }$

6 0

3 years ago

Here’s the repostttt

Aleksandr-060686 [28]

1. we have to find what number lie at A and B , and that too between and 1 and 2 , so these two numbers must be decimal numbers!! So let's find the number of scales between 1 and 2 , we get 8 scales !! So the question is how much place 1 scale will occupy ?? we have to find certain numbers between 1 and 2 , suppose between 1 and 2 we have 1 unit and those 1 unit occupies 8 scales !! so much place 1 scale occupies ?? to get it divide 1 by 8 and we get 0.125 !! so between 1 and 2 ,each blank space or scale occupies 0.125 unit!! now what numbers lie at A ? count the number of scale between 1 and A , we get 3 scales ! now multiply 3 by 0.125 , we get 0.375 , add 1 to 0.375 , we get 1.375 !! hence 1.375 lies at A ! now we have to find which number lies at B ? count the number of blanks or scale , we get 4 ! multiply 4 by 0.125 and we get 0.5 ! add this 0.5 to 1 , we get 1.5 ! therefore the number 1.5 lies at B !!

2. for 2nd number solution refer to the attachment! !