Answer:
C = 10π ft
Step-by-step explanation:
the circumference (C) of a circle is calculated as
C = 2πr ( r is the radius )
to find r use the area formula, that is
A = πr² = 25π ( divide both sides by π )
r² = 25 ( take square root of both sides )
r =
= 5
then
C = 2π × 5 = 10π ft
Answer:
(4x)¯² (4x)³ (4x)⁹ = (4x)¹⁰
Step-by-step explanation:
(4x)¯² (4x)³ (4x)⁹
The above expression can be simplified as follow:
Recall:
When we have two or more index number with same base and a multiplication sign in between them, we easily simply by adding the index number together while keeping the base constant. This is illustrated below:
a^m x a^n = a^(m + n)
Therefore,
(4x)¯² (4x)³ (4x)⁹ = (4x)^(-2 + 3 +9)
(4x)¯² (4x)³ (4x)⁹ = (4x)¹⁰
The answer is 23.5.
Hope this helps.
- 9z + 12
= - 3 ( 3z - 4 )
The answer is D
i am a mathematics teacher. if anything to ask please pm me
Answer:
C) $51
Step-by-step explanation:
Step 1. Calculate the <em>discount
</em>
The discount is 15 % of $60
Discount = 60 × 0.15
Discount = $9
===============
Step 2. Calculate the <em>sale price</em>
Sale price = original price - discount
Sale price = 60 - 9
Sale price = $51
The sale price will be $51.