Answer: 8:30, 16:60, 32:120
Answer:
D. x = 1.7 or x = 5.7
Step-by-step explanation:
The left side of the equation is graphed in blue. The right side of the equation is graphed in red.
The solution of the equation is the x (and y) that make both equations true.
On the graph these solutions are the points where the two graphs intersect.
Those two points have x values that are positive (and y's that are negative) Only answer D. has x-values that correspond to the x-values of the points of intersection.
Can you be more specific about what is P(5)? The probability would probably be around five though.
Axis of symmetry is the x value of the vertex
the x value of the vertex, in form
y=ax^2+bx+c is -b/(2a)
so
y=-5x^2-10x-15
a=-5
b=-10
x value of vertex is -(-10)/(2*-5)=10/-10=-1
x=-1 is axis of symmetry
surface area of cylinder = 2*pi*r*h + 2*pi*r^2
= 2*8*14*pi = 224pi
+ 2*8^2*pi = 128 pi
224+128 = 352
so answer is 352 pi
