3 years ago

Please trigometry help fast please please

Mathematics

1 answer:

daser333 [38]3 years ago

3 0

Answer:

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Celia simplified the expression Negative 4 x (1 minus 3) minus (2 x + 2). She checked her work by letting x = 5 in both expressi

guapka [62]

Answer:

6x-2

Step-by-step explanation:

-4x(1-3)-(2x+2)

= 4x+12x-2x-2

6x-2

(simplify)

8 0

2 years ago

The life expectancy (in hours) of a fluorescent tube is normally distributed with a mean 8000 and a standard deviation 1000. fin

Bad White [126]

Given that the ,mean is 8000 and the standard deviation is 1000, thus the probability that <span>tube lasts for more than 11000 hours. will be given by:
P(x>11000)
the z-score is:
z=(x-</span>μ<span>)/</span>σ
x=11000
μ=8000
σ=1000
hence:
z=(11000-8000)/1000
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thus
P(x>11000)=1-P(x<11000)
But
P(x<11000)=P(z<3)=0.9987
hence
P(x>11000)=1-0.9987=0.0013

4 0

4 years ago

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Twenty-five people split an inheritance equally. If each person receives no more than $500, could the total inheritance be $12,0

podryga [215]

Answer:480

Step-by-step explanation:

12,000 Divided by 25 = 480

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3 years ago

Given: tan(0)=4/3 and sin(0) = -4/5 find cos(0)

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