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frozen [14]
3 years ago
13

This map shows the location of trees in a yard.

Mathematics
2 answers:
satela [25.4K]3 years ago
8 0
The answer here is c. You get this by following the path of 3 to the right and up 8
Luba_88 [7]3 years ago
3 0
It's c (3,8) because you have to run first then jump
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A certain brand of flood lamps has a lifetime that is normally distributed with a mean of 3,750 hours and a standard deviation o
vesna_86 [32]
Given that mean=3750 hours and standard deviation is 300:
Then:
<span>a. The probability that a lamp will last for more than 4,000 hours?
P(x>4000)=1-P(x<4000)
but
P(x<4000)=P(z<Z)
where:
z=(x-</span>μ)/σ
z=(4000-3750)/300
z=0.833333
thus
P(x<4000)=P(z<0.8333)=0.7967
thus
P(x>4000)=1-0.7967=0.2033

<span>b.What is the probability that a lamp will last less than 3,000 hours?
P(x<3000)=P(z<Z)
Z=(3000-3750)/300
z=-2.5
thus
P(x<3000)=P(z<-2.5)=0.0062

c. </span><span>.What lifetime should the manufacturer advertise for these lamps in order that only 4% of the lamps will burn out before the advertised lifetime?
the life time will be found as follows:
let the value be x
the value of z corresponding to 0.04 is z=-2.65
thus
using the formula for z-score:
-2.65=(x-3750)/300
solving for x we get:
-750=x-3750
x=-750+3750
x=3000</span>
7 0
3 years ago
At a frisbee throwing competition one contestant threw a frisbee 113.47 meters
jekas [21]
I don’t understand the question
5 0
3 years ago
The volume of one of the Great Lakes is 3.5 × 10^3 cubic kilometers. If there are 6.3 × 10^7 fish in the lake, what is the avera
Gala2k [10]
________________1,8*10^4
3 0
2 years ago
What’s the next three after? <br> 18,36,72,144,..
IgorC [24]

Answer: 288, 576, 1152

Step-by-step explanation: What you do here is that you multiply every number by two. You start by doing 18 times 2, which equals 36. Then you do 36 times 2, which equals 72. You keep on doing this until you get the answers needed.

Hope this helped!! :)

6 0
3 years ago
Read 2 more answers
AAA Packages Plus sends packages overnight for $5 plus $0.25 per ounce. United Packages charges $2 plus $0.35 per ounce.
Nata [24]
A.)
The equation for AAA packages plus would be .25x+5
The equation for United packages would be
.35x+2

B.) his package would need to be 30 ounces for them to be the same price
7 0
2 years ago
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