4:2 because it goes cars then buses
H(d)=height from water
when he reaches the water, his height from water=0
so set the equation equal to zero and solve
0=-d^2+2d+24
multiply both sides by -1 for ease
0=d^2-2d-24
now find what 2 factors of -24 add up to -2
answer is -6 and 4
0=(d-6)(d+4)
set each to zero
d-6=0
d=6
d+4=0
d=-4
you cannot have negative distance because that means he hasn't jumped yet so get rid of this number
d=6
answer is 6 meters
Answer:
Step-by-step explanation:
p(b)=3/12 = 0.25
p(r)=5/12 = 0.42
p(w)=4/12 = 0.33
p(¬r) = 1-0.42 = 0.58
p(¬w)= 1-p(w) = 0.67
P(not red Inot white)= 0.58/0.67=0.87
Answer:
You didn't list the answers but it's 43.98 so close to 44 I'm guessing
Step-by-step explanation:
circumference=2*pi*r
2*3.14*7=about 44
Answer:
51.69 hours (see explanation)
Step-by-step explanation:
This question is simple once you break it down:
84 boxes in 312 hours is a rate, so it can be shown in fraction form:
84 boxes / 312 hours
Now to figure out how long it takes to unpack those 192 boxes, just multiply:
192 x 84/312
(192 x 84) / 312
16128 / 312
Now, just divide the numbers:
16128 ÷ 312 = 51.69 hours