Answer:
9.5 inches
Step-by-step explanation:
The relationship is presumed to be ...
(first week's growth) + (second week's growth) = (growth in two weeks)
(first week's growth) + 3.43 inches = 12.93 inches . . . . . fill in the numbers
Subtract 3.43 from both sides of the equation:
first week's growth = 12.93 inches - 3.43 inches
first week's growth = 9.50 inches
The plant grew 9.50 inches in the first week.
Answer:
A) down
B) x intercept (5, 0)
y intercept (0, 80)
C) 144 ft
Step-by-step explanation:
y = Ax² + Bx + C
y = -16x² + 64x + 80
A)
Parabola opens down because A is negative
B)
x intercept (5, 0)
x = (-64 ±√(64² - 4(-16)(80))) / (2(-16))
x = -1 which means if the profile is continuous, the balloon launched one hour ago.
or
x = 5 which means the balloon will be on the ground in 5 hours.
(assuming level ground or no wind at all.
y intercept
y = -16(0)² + 64(0) + 80
y = 80 ft
meaning the balloon is already 80 feet above the ground when we start looking at t = 0
C)
Maximum altitude will occur when the vertical velocity is zero. Velocity is the derivative of position.
x' = -32x + 64
0 = -32x + 64
32x = 64
x = 2 hrs
y = -16(2)² + 64(2) + 80
y = 144 ft
Answer:
burdan yerine aslıhda bunun cevüplarını veren sayfalar oluyo 10 dk de araştır bulursun
Answer:
The answer is C, E and F .
Step-by-step explanation:
Given that the area of square is, Area = length×width. In a square, all sides are equal so you have to substitute (2x+4) into the formula :
Let length be (2x+4) inches,
Let width be (2x+4) inches,
Area = (2x+4)(2x+4)
= (2x+4)² (option C)
= 4x² + 16x + 16 (option F)
= 4(x² + 4x + 4) (<em> </em><em>F</em><em>a</em><em>c</em><em>t</em><em>o</em><em>r</em><em>i</em><em>z</em><em>e</em><em> </em>)
= 4(x+2)² (option E)
You can use the formula, (a+b)² = a² + 2ab + b² to evaluate quickly.
