Answer:
1) A
2) min; min; max; max
3) y = x² + 5x - 3
Step-by-step explanation:
f(x) = x² + 2(x)(5) + 5² - 5² + 24
f(x) = (x + 5)² - 25 + 24
f(x) = (x + 5)² - 1
In ax² + bx + c,
if a > 0, it's a min
if a < 0, it's a max
y = ax² + bx + c
Using (0,-3)
-3 = a(0)² + b(0) + c
c = -3
y = ax² + bx - 3
Using (1,3)
3 = a + b - 3
a + b = 6
Using (-1,-7)
-7 = a(-1)² + b(-1) - 3
-7 + 3 = a - b
a - b = -4
b = a + 4
a + (a + 4) = 6
2a = 2
a = 1
b = 5
y = x² + 5x - 3
Daniel: 3/4=.75 = 75%
Jacob: 5/12= .41 = 41%
So it would be Jacob that is faster
Answer:
54 inches
Step-by-step explanation:
Answer:
brain
Step-by-step explanation:
brain to the fullest
X/2 + y/3 = 6....multiply by common denominator (6) to get rid of fractions..
3x + 2y = 36
3x + 2y = 36
x - y = 2....x = y + 2
3(y + 2) + 2y = 36
3y + 6 + 2y = 36
3y + 2y = 36 - 6
5y = 30
y = 30/5
y = 6
x - y = 2
x - 6 = 2
x = 2 + 6
x = 8
solution is : (8,6)