Answer:
Step-by-step explanation:
of 
means ÷
÷
The standard equation is y=ax^2+bx+k and the vertex way is y=a(x-h)(x-h)+x
so the coordinate for x is -b/2a, for your problem a=-4 b=-16 so the coordinate for x is -(-16)/(2*(-4))=-2. Now you have to replace x=-2 in your equation y=-4(-2)^2-16(-2)-11= 5.
The vertex is (-2, 5)
Step-by-step explanation:
a/5≥-2
a≥-10
Draw a solid circle • labelled "a" on -10 and draw an arrow from that circle towards 2.
a
•--------------------⟩
-10
Compound Interest Formula:
A = P(1 + r/n)^(nt)
A= Accumulated amount with interest P= principal= $1000
R= annual interest rate (decimal)= 0.05
N= # times compounded per year= 12
T= # of years= 10
A= 1000(1 + 0.05/12)^(12*10)
divide inside parentheses first
A= 1000(1 + 0.0041666667)^ (12*10)
add inside parentheses
A= 1000(1.0041666667)^ (12*10)
multiply exponents
A= 1000(1.0041666667)^120
multiply parentheses by exponents
A= 1000(1.6470095043)
multiply last two numbers
A= $1,647.01 amount after 10 years
ANSWER:
D) $1647.01 total after 10 years
Hope this helps! :)
