Answer:
Since the ribbons are $3 each and she sold 8, she earned $24 from the ribbons. Keisha sold 6 pins which cost $2 each so she earned $12. 24+12=36, therefore Keisha earned $36 dollars in total.
Believe it or not, this is the second version of Q is very similar to the first, even though it doesn't really look like it. We can represent the second version as a * (1 + r)^t
See the similarity between this and the first version? Thus, we can represent what is given in the problem as:
Q = a * b^t = a * (1 + r)^t
Thus, b = 1 + r. Since b = 0.8, we can find r.
0.8 = 1 + r
r = -0.2, or r = -20%.
ANSWER
EXPLANATION
The given equation is
We divide through by 4 to obtain;
This can again be written as:
This is the equation of a circle centered at the origin with radius 4 units.
The graph is shown in the attachment.
Answer:
Step-by-step explanation:
hello :
here is an solution :
Determine the area of the circular region that can be reached by the radio station signal using the equation.
A = πD²/4
A is area and D is diameter. Using 3.14 as pi value.
A = (3.14)(120 mi)² / 4
A = 11304 mi²
Knowing that in each of the squared miles, 100 people live.
total population receiving the signal = 11304 mi² x (100 people / 1 mi²)
= 1,130,400
Thus, the answer is letter C.
