The area of a circle by definition is given by:
A = pi * r ^ 2
Where,
r: radius
Substituting the values we have:
A = (3.14) * (15) ^ 2
A = 706.5 mm ^ 2
Answer:
The approximate area of the compass is:
A = 706.5 mm ^ 2
Answer:
the answer of that question is Letter C
Answer:
9-(8 divided by 7)
Step-by-step explanation:
Answer:
$0.68
Step-by-step explanation:
Convert the percentage to a decimal.
6.8% = 0.068
Multiply the amount by the decimal to find the tax.
9.95 × 0.068 = 0.6766
The tax is $0.68.
Answer:
324 and 144
Step-by-step explanation:
We require
a₁, a₂, a₃, a₄
where a₂ and a₃ are the required geometric means
The n th term of a geometric sequence is
= a₁
where a₁ is the first term and r the common ratio
Here a₁ = 729 and a₄ = 64, thus
729(r³) = 64 ( divide both sides by 729 )
r³ = 
( take the cube root of both sides )
r = ![\sqrt[3]{\frac{64}{729} }](https://tex.z-dn.net/?f=%5Csqrt%5B3%5D%7B%5Cfrac%7B64%7D%7B729%7D%20%7D)
= 
, then
a₂ = 729 × = 81 × 4 = 324
a₃ = 324 × = 36 × 4 = 144
Thus
729, 324, 144, 64
