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VashaNatasha [74]
2 years ago
7

Please i’m trying to help my gf work i’m in 8th i’ll give you brainliest

Mathematics
2 answers:
lorasvet [3.4K]2 years ago
8 0

Take a better pic and i will explain in comment

Rama09 [41]2 years ago
6 0

Answer:

here is ur answer.....

hope it helped u and ur gf......

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Three dogs for each cat <br><br><br><br>a) d=3c<br>b) 3d=c<br>c) d= 3/c <br>d) c=3/d
ivanzaharov [21]
The answer is would have to be b.
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The graphs of y-2x = 1, 4x + y = 7, and 2y - x= -4 contain the sides of triangle. Find the coordinates of the vertices of the tr
Darina [25.2K]

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3 years ago
How do you graph x = 1/4
Scorpion4ik [409]

Answer:

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3 years ago
Read 2 more answers
The lifespan of a 60-watt lightbulb produced by a company is normally distributed with a mean of 1450 hours and a standard devia
Flura [38]
To evaluate the probability that the lifespan will be between 1440 and 1465 hours will be given by:
P(1440<x<1465)
using the z-score formula we obtain:
z=(x-μ)/σ
where:
μ=1450
σ=8.5
hence
when x=1440
z=(1440-1450)/8.5
z=-1.18
P(z<-1.18)=0.1190

when x=1465
z=(1465-1450)/8.5
z=1.77
P(z<1.77)=0.9625

hence:
P(1440<x<1465)
=0.9625-0.1180
=0.8445
8 0
3 years ago
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