Answer:
Picture 1:( x-2.5)²+(y+5.5)²=225
Picture 2:( x-4)²+(y-1)²=25
Step-by-step explanation:
Use the rule: ( x-p)²+(y-q)² =r
( p,q)is the coordinate of the center of the circle
r is the radius of the circle
Answer:
D.5
Step-by-step explanation:
You can write the following equations from the information given:
y=x+3 (1)
11x+5y=47 (2)
x is the number of hardback books
y is the number of paperback books
You can replace (1) in (2):
11x+5(x+3)=47
11x+5x+15=47
16x=47-15
16x=32
x=32/16
x=2
Then, you can replace the value of x in (1) to find the value of y:
y=2+3
y=5
According to this, the answer is that Jamal bought 5 paperback books.
Answer:
b 5 a 6 b 7
Step-by-step explanation:
