Answer:
centre = (0, 0 ) , radius = 2
Step-by-step explanation:
the equation of a circle centred at the origin is
x² + y² = r² ( r is the radius )
x² + y² = 4 ← is in this form
with centre (0, 0 ) and r = 
= 2
the answer to this question is -7.25 or 7 1/4
Answer:
20 is 10% of 200
Step-by-step explanation:
We have, 10% × x = 20
or,
10
100
× x = 20
Multiplying both sides by 100 and dividing both sides by 10,
we have x = 20 ×
100
10
x = 200
If you are using a calculator, simply enter 20×100÷10, which will give you the answer.
Answer:
A = 9.9648
Step-by-step explanation:
if the triangle is equilateral =>
P = 3L => L = 14.4/3 = 4.8
A = L²√3/4
= (4.8)²√3/4
= 23.04√3/4
= 5.76×1.73
= 9.9648
Answer:
700 + 25m = 1000 is the correct equation
Step-by-step explanation:
In this question, we are tasked with finding the equation that represents the number of months m which in which megan will have $1000 in her account.
Now for her daughter, there are two kinds of ways she generates money for he account. The $700 see money her mother gave her and the $25 she has per month.
Thus after m months, the total she would have raised from the $25 each would be $25m
Now, we add this to the $700 see money and equate to $1000
Mathematically we have;
700 + 25m = 1,000
