Answer:
The center of the circle is c=50 and radius of the circle is
Step-by-step explanation:
Given circle equation is
Equation (1) can be written as
we know that the equation of the circle is of the form
with centre (-g,-f) and radius=
when, g,f and c are constants
Now comparing the (2) and (3) equations we get 2g=-4
and
Now to find the centre and radius of the given circle equation, substituting the values of g,f,c in the formulae of centre and radius
centre=(-g,-f)
=(-(-2),-7)
centre=(2,7)
Radius=
=
=
=
Radius=
The center of the circle is c=50 and the radius of the circle equation
a. Let's start with "the sum of one-half and one-third." Sum tells us to add. This would translate to 1/2 + 1/3. Now, it's telling you to find 1/5 of that. So you multiply this by 1/5.
Your final expression is (1/5)(1/2 + 1/3)
b. "the sum of nine and twelve" is more obvious; 9 + 12. Now, multiply it by "two and one-half"
Your final expression is (2 1/2)(9 + 12)
c. "difference between 1 1/2 and 3/4." Difference tells us to use subtraction. 1 1/2 - 3/4. "twenty-four divided by" tells you that that part of the equation belongs in the denominator.
Your final expression is 24 / (1 1/2 - 3/4)
Answer:
$ 584.89
Step-by-step explanation:
so each student is responsible for selling 12 necklaces...and there are 130 students....so thats (130 * 12) = 1560 necklaces
each necklace is 1.50....so thats (1560 * 1.50) = 2340
profit = revenue earned - expenses
profit = 2340 - 0.45 = 2339.55
1/4 of the profit goes to Puerto Rico
1/4 * 2339.55 = 2339.55/4 = 584.887 rounds to $ 584.89 <==
<em>90 im pretty sure if im wrong sorry but im pretty sure it is</em>
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