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3 years ago

PLEASE HELPPPPP MATH

Mathematics

2 answers:

Artist 52 [7]3 years ago

8 0

Answer:

After 30 weeks.

Step-by-step explanation:

250 + 25*30 = 1000

400 + 20*30 = 1000

Stels [109]3 years ago

6 0

Answer:

Use the equation 250+25w=400+20w

Step-by-step explanation:

Replace w with one of the answers until you get the right one.

pretty sure its 35 but I don't have a calculator with me so double check

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If records indicate that 15 houses out of 1000 are expected to be damaged by fire in any year, what is the probability that a wo

nordsb [41]

Answer: 0.01708

Step-by-step explanation:

Given : If records indicate that 15 houses out of 1000 are expected to be damaged by fire in any year.

i.e. the probability that house damaged buy fire in a year : $p=\dfrac{15}{1000}=0.015$

The formula for binomial distribution is given by :-

$^{n}C_xp^x(1-p)^{n-x}$

Now, the probability that a woman who owns 14 houses will have fire damage in 2 of them in a year (put n=14 and x=2), we get

$^{14}C_2(0.015)^2(1-0.015)^{14-2}\\\\=\dfrac{14!}{2!(14-2)!}(0.015)^2(0.985)^{12}\\\\=0.0170788520518\approx0.01708$

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4 0

3 years ago

I need answers fast

Sveta_85 [38]

Answer:

The answer is D (SU is congruent to JL)

Step-by-step explanation:

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