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2 years ago

What is the formula for area of a quarter circle

Mathematics

1 answer:

GuDViN [60]2 years ago

3 0

Answer:

πr²/4

Step-by-step explanation:

Area of a circle if πr²

so Area of a quarter of a circle (or 1/4 of a circle) = πr²÷4

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Consider the sequence: 3, 8, 13, 18, 23, ...The recursive formula for this sequence is:an = an-1 + 5In a COMPLETE sentence, expl

Akimi4 [234]

Answer:

$a_8=38$

Step-by-step explanation:

<u>Recursive sequence </u>

In a recursive sequence formula, each term $a_n$ is computed as a function of one or more previous terms. In the formula

$a_n=a_{n-1}+5$

n is the number of the term we want to calculate. If n=8, then the formula becomes

$a_8=a_{7}+5$

We can see $a_{n-1}$ is the previous term. It means we need $a_7$ to be able to compute $a_8$ . But we also need $a_6$ to compute $a_7$ and so on until some known data is reached. The question provides five terms, $a_5=23.$

$a_6=a_5+5=28$

$a_7=a_6+5=33$

$a_8=a_7+5=38$

$a_8=38$

4 0

2 years ago

the floors of houses in japan are traditionally covered by tatami. tatami are rectangle shaped straw mats that measure about 6 f

Masja [62]

8 Tatami mats are needed to cover the floor.

4 0

2 years ago

A circle has been split into 8 sectors each of which can be colored as 4 different colors, and no consecutive sectors are colore

Eva8 [605]

Answer:

5832 ways

Step-by-step explanation:

Since the circle has 8 sectors and there is 4 colour,

Assuming the sectors are numbered 1 to 8,

Sector 1 : can be coloured with any of the 4 colour in 4 ways

Sector 2 can be coloured with any of the remaining 3 colours in 3 ways

Sector 3 in 3 ways without using the colour in sector 2

Sector 4 in 3 ways without using the colour in sector 3

Sector 5 in 3 ways without using the colour in sector 4

Sector 6 in 3 ways without using the colour in sector 5

Sector 7 in 3 ways without using the colour in sector 6

Sector 8 in 2 ways without using the colours in sector 1 and 7

Number of ways of colouring = 4*3*3*3*3*3*3*2 = 5832 ways

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2 years ago

A book store was selling 5 books for $27.75. Online the you could buy 6 books for $32.16. Which place has a lower unit price

Svetllana [295]

27.75/5 = $5.55 per book
32.16/6 = $5.36 per book
The online store is the cheapest because it has the lowest unit rate

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2 years ago

when three or more numbers are multipiled the product is the same regardless of the order of the multiplicands

BlackZzzverrR [31]

Answer:

Associative property of multiplication.

Step-by-step explanation:

7 0

2 years ago