Answer:
Step 4
part a: no answer yet still having trouble showing my work
part b:
-0.125(x-24)^2+50
-0.125(x-24)(x-24)+50
-0.125(x^2-24x-24x+576)+50
-0.125(x^2-48x+576)+50
-0.125x^2+6x-75+50
-0.125x^2+6x-22
a=-0.125
b=6
c=-22
part c: yes he went through
part d:
plug in roots (4,0) and (44,0)
if x is 4 and y is 0
0=-0.125(4)^2+6(4)-22
0=-2+24-22
0=-2+2
0=0
if x=44 and y=0
0=-0.125(44)^2+6(44)-22
0=-242+264-22
0=-242+242
0=0
B= 6 add 15 to 51 then divide by 11
6ba is the answer you need
Using Pythagorean theory the square of the hypotenuse minus the square of the base equals the square of the other side (altitude).
So 8*8=64, 4*4=16, 64–16=48 so the altitude of the triangle is the √48.
9514 1404 393
Answer:
$3,400
Step-by-step explanation:
The expected value is the sum of products of the value and its probability:
E = 2000(0.1) +3500(0.8) +4000(0.1) = 200 +2800 +400 = 3400
The expected value of the investment is $3,400.