Answer:
The equation of a circle:
Step-by-step explanation:
The equation of a circle:
(where the center is known as 
and the radius, known as 
).
-Since you already have the center and the radius, use them for the equation of a circle:
Center: 
Radius: 
After you have the equation of a circle, simplify the radius by the exponent 
:
So, you have found the equation of a circle.
You can divide 12min.➗30lps. Then you divide 48➗120lps.
And the answer will be 12➗30=0.4 then 48➗120=0.4 and the answer is that the ratios or rates are equvalent by dividing.
Answer:
The pencil cost $0.05 and the pen cost $1.05.
Step-by-step explanation:
Let, the price of the pencil is $ .
Given that the pen costs a dollar more than the pencil,
So, the price of the pen=$+1.
Therefore, ++1=1.10
, 2+1=1.10
, 2=1.10–1
, 2=0.10
, =0.10/2
, =0.05
The pencil cost $0.05 and the pen cost $1.05.
Answer:
B
Step-by-step explanation:
let f(x) = y and rearrange making x the subject
y = 
( multiply both sides by 7 to clear the fraction )
7y = x + 2 ( subtract 2 from both sides )
7y - 2 = x
Change y back into terms of x with x the inverse function, that is
p(x) = 7x - 2
D because a has to be younger than 18 and it has to be positive because we are never a negative age. do you understand when i mean?
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