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3 years ago

I need the answer fast Pls HELP choose one then more chosises so you need to choose more chosies

Mathematics

2 answers:

rosijanka [135]3 years ago

8 0

Answer three (c) is the answer

Evgesh-ka [11]3 years ago

6 0

Answer:

Step-by-step explanation:

there

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Who wants 100 points you also get brainliest if you answer this question... 6+9=?

FrozenT [24]

Answer:

6+9=15

Step-by-step explanation:

6 0

2 years ago

How many solutions does the absolute value equation below have? |x + 6| = –8

WINSTONCH [101]

The answer is there are no solution that fulfill this equation because if you put for example -14 the answer will be -8 but there is absolutely sign, so the answer is 8. Hope it help!

6 0

3 years ago

A lamp has two bulbs, each of a type with average lifetime 1400 hours. Assuming that we can model the probability of failure of

liq [111]

Answer:

The probability of failure of both the bulbs is 0.4323.

Step-by-step explanation:

For an exponential distribution the distribution is given by

$f(x,\lambda )=\int_{0}^{x }\lambda e^{-\lambda x}dx$

The value of λ is related to the mean μ as λ=1/μ,

Let us denote the 2 bulbs by X and Y thus the probability distribution of the 2 bulbs is as under

$P(X)=\int_{0}^{x }\lambda _{X}e^{-\lambda _{X}x}dx$

Similarly for the bulb Y the distribution function is given by

$P(Y)=\int_{0}^{y }\lambda _{Y}e^{-\lambda _{Y}y}dy$

Thus the probability for both the bulbs to fail within 1500 hours is

$P(E)=\int_{0}^{1500}\int_{0}^{1500}\frac{1}{1400}e^{\frac{-x}{1400}}\cdot \frac{1}{1400}e^{\frac{-y}{1400}}dxdy\\\\P(E)=\frac{1}{1400^2}(\int_{0}^{1500}\int_{0}^{1500}e^{\frac{-x}{1400}}\cdot e^{\frac{-y}{1400}}dxdy)\\\\P(E)=\frac{1}{1400^2}(\int_{0}^{1500}e^{\frac{-x}{1400}}dx)\cdot (\int_{0}^{1500}e^{\frac{-y}{1400}}dy)\\\\P(E)=\frac{1}{1400^{2}}\times 920.473\times 920.473\\\\\therefore P(E)=0.4323$

6 0

3 years ago

What is the simplified version of this?<img src="https://tex.z-dn.net/?f=%5Cfrac%7B%5Csqrt%7B2%7D%20%7D%7B3%2B%5Csqrt%7B5%7D%7D"

DaniilM [7]

Answer: sqrt 2(3- sqrt 5) / 4

Step-by-step explanation:

Multiply by conjugate

3- sqrt 5/ 3- sqrt 5

8 0

3 years ago

picture!! giving brainliest!!

Arisa [49]

Answer:

TABLE

x 4 5 6 7 8 9 10 11 12

y 100 125 150 175 200 225 250 275 300

GRAPH

x 0 2 4 6 8 10 12

y 0 60 120 180 240 300 360

Value of y on graph - Value of y on table = 360 - 300 = 60

option C

8 0

3 years ago