Answer:

Step-by-step explanation:
we know that
The equation of a circle in standard form is equal to

In this problem we have


substitute


Answer:
Step-by-step explanation:
hello :
5(x + 7)² = 245
(x + 7)² = 49
x=0 is solution but you have other solution -14 because :(-14+7)² = (-7)² =49
here is an solution Step-by-step :
(x + 7)² = 49 means : (x + 7)² = 7²
(x + 7)² - 7²=0 use identity : a²-b² = (a-b)(a+b)
a=x+7 and b= 7
(x+7-7)(x+7+7) = 0
x(x+14)=0
x=0 or x+14=0
so : x=0 or x= -14
Answer:
31.5 square feet of counter top
Step-by-step explanation:
x represents the number of square feet
40x + 750 = 2010 subtract 750 from both sides
40x = 1260 divide both sides by 40
x = 31.5
Answer:
5/12
Step-by-step explanation5
6
−
5
12
=
5
6
−
5
12
=
5
6
+
−5
12
=
10
12
+
−5
12
=
10+−5
12
=
5
12
Answer:

Step-by-step explanation:
To solve this, we have to plug in 1/3 for x:
