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3 years ago

John has a round swimming pool the distant from the center of the pool to the edge 3 m which formula can I used to find the area

1 answer:

5 0

The formula that you will use will be the formula for the area of a circle, which is as follows:
A= Pi r^2
(Pi times the radius squared)

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What is the nth term of the geometric sequence that has a common ratio of 6 and 24 as it’s third term?

Llana [10]

$\bf \begin{array}{ccll}
n&term&value\\
\text{\textemdash\textemdash\textemdash}&\text{\textemdash\textemdash\textemdash}&\text{\textemdash\textemdash\textemdash}\\
1&a_1&a_1\\
2&a_2&6a_1\\
3&a_3&6(6a_1)\\
&&36a_1
\end{array}\implies \stackrel{\textit{3rd term is 24}}{36a_1=24}
\\\\\\
a_1=\cfrac{24}{36}\implies a_1=\cfrac{2}{3}$

$\bf n^{th}\textit{ term of a geometric sequence}
\\\\
a_n=a_1\cdot r^{n-1}\qquad 
\begin{cases}
n=n^{th}\ term\\
a_1=\textit{first term's value}\\
r=\textit{common ratio}\\
----------\\
r=6\\
a_1=\frac{2}{3}
\end{cases}
\\\\\\
\boxed{a_n=\cfrac{2}{3}\cdot 6^{n-1}}$

8 0

3 years ago

How to solve 5(x+1)(x+1)(x+7)

damaskus [11]

Distribute the 5 to each of the numbers so you should get 5x+5+5x+5+5x+35. after this you should combine like terms, all of the 5’s & the 35 and 5x’s. you should have 15x+45. then you divide 45 by the 15 and you should get x=3

8 0

3 years ago

Find xyz (plz answer it properly )

Airida [17]

Answer:

<ABC=50

<EDB=30

<DFC=60

Step-by-step explanation:

<ABC=50 BECAUSE ANGLE SUM PROPERTY

90+40+50=180

<EDB=30 BECUSE ANGLE SUM PROPERTY

100+50+30=180

<DFC=60 BECAUSE ANGLE SUM PROPERTY

30+90+50=180

HOPE IT HELPS <3<3

PLZ RATE IT

3 0

3 years ago

A pack of 6 batteries of the same type cost ?2.79 . By calculating the price per battery,determine if this is better value.You m

MissTica

Answer:

The full question is attached in the picture below.

The better price for the battery is given with the 6 pack.

(£ 0.47 per battery)

Step-by-step explanation:

If 8 batteries cost £ 3.99

This means that one battery is equal to

£3.99/8 = £ 0.49875 ≈ £ 0.50 per battery

The pack of 6 batteries costs £ 2.79

This means that one battery is equal to

£2.79/6 = £ 0.465 ≈ £ 0.47 per battery

Then, we can conclude than the 6 pack gives us a better price per battery

7 0

3 years ago

Please answer these questions!!!!

Virty [35]

Answer:

BEC = C. 50

BCD = A. 120

Step-by-step explanation:

BEC

65 + 65 = 130

180 - 130 = 50

BCD = 180 - 60 = 120

BEC is 50

4 0

2 years ago

Read 2 more answers