Answer:
2.5
Step-by-step explanation:
you can use pythag theorem and divide c by two:
-3^2+4^2=c^2
9+16= 25
c=5
however, 5/2=2.5
7/8 x 72/1=
7/1 x 9/1 =
63
Answer:
B.$8.98
Step-by-step explanation:
We need to determine the cost per ounce. We divide the cost by the number of ounces
3.59/16 =.224375 per ounce
Take the price per ounce and multiply by the number of ounces to determine the price of the 40 ounce jar
.224375 * 40 =8.975
Rounding to the nearest cent
8.98 for a 40 ounce jar
Answer:
centre = (-5, -4)
radius = 7.42
Step-by-step explanation:
The general form for center-radius is
(x - h)² + (y - k)²= r²
Center = (h, k)
Radius = r
Rearrange the equation.
(x² + 10x) + (y² + 8y) - 14 = 0
Add 14 on both sides.
(x² + 10x) + (y² + 8y) = 14
(10/2)² = 25
(8/2)² = 16
Add 25 and 16 to both sides.
(x² + 10x + 25) + (y² + 8y + 16) = 14 + 25 + 16
Factor left side of the equation.
(x+5)² + (x+4)² = 55
(55) = (7.416198)²
(x+5)² + (x+4)² = 7.42²
The radius is 7.42.
The centre is at (-5, -4).
