We have that
x²<span> + 7x + c
</span><span>Group
terms that contain the same variable
</span>(x² + 7x )+ c
<span>Complete
the square. Remember to balance the equation
</span>(x² + 7x+3.5² )+ c-3.5²
Rewrite as perfect squares
(x+3.5)²+ c-3.5²
so
c-3.5² must be zero
c-3.5²=0------- c=3.5²------> c=12.25
the answer isthe value of c must be 12.25
If you divide 128 cookies by 8 trays, you'll get 16.
Therefore, theres 16 cookies baked in each 8 trays.
Answer:
6 dimes, 26 nickels
Step-by-step explanation:
The number of nickels is N, and the number of dimes is D.
N + D = 32
5N + 10D = 190
--
N + 2D = 38
D = 6
N = 26
Start by adding together the shortest two sides, 7 and 8.7 inches. Result: 15.7 inches. Because this sum is greater than the longest side, 15.4 inches, it's possible to construct a triangle, whose largest angle will be close to 180 degrees.
Answer:
200.96 yd^2
Step-by-step explanation:
Area of a circle = πr^2 where r = radius
radius = diameter/2
radius = 16/2
radius = 8
Area = π(8)^2
Area = π64
Area = 200.96 yd^2