Answer:
3. equivalent
4. not equivalent
Step-by-step explanation:
The center-radius form of the circle equation is in the format
(x – h)²+ (y – k)² = r²
with the center being at the point (h, k) and the radius being "r"
So, just plug in the (-5,3) and you get:
(x+5)²+(y-3)²=16
300/ 15 = 20
divide bar graph into 20 equal sections
each section represents one week
algebra
number of weeks = x
15x = 300
x = 300/15
x = 20
Answer:
9 OR 1
Step-by-step explanation:
Let the number be x
x² - 10x = -9
x² - 10x + 9=0
a=1
b=-10
c=9
Solve using the quadratic formula
x =9 or 1
Answer:
Pavilion seats: 1000
Lawn seats: 600
Step-by-step explanation:
Let p represent tickets for pavilion seats and l represent that of lawn seats
Then the total number of tickets is
The total revenue is
We make p the subject in the first equation:
This implies that:
Put equation (3) into equation (2).
This gives us:
Expand to get:
Group similar terms:
Simplify to get
Put l=600 into equation (3) to get:
Therefore 1000 pavilion seats and 600 lawn seats were sold.