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2 years ago

-2i over 1+i ... help :(

2 answers:

7 0

If you're evaluating, then multiply by the conjugate and simplify.
= -1 -i
The answer would be the same even if you divided...and or, wrote it in simplest form.

Vesnalui [34]2 years ago

3 0

The answer to your question is -l - i

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Find the area of the triangle. Round your answer to the nearest tenth.

alexgriva [62]

Answer:

180 i think

Step-by-step explanation:

6 0

2 years ago

(3 points) Buchtal, a manufacturer of ceramic tiles, reports on average 3.1 job-related accidents per year. Accident categories

Strike441 [17]

Answer:

0.8743 = 87.43% probability that more than one accident occurs per year

Step-by-step explanation:

In a Poisson distribution, the probability that X represents the number of successes of a random variable is given by the following formula:

$P(X = x) = \frac{e^{-\mu}*\mu^{x}}{(x)!}$

In which

x is the number of sucesses

e = 2.71828 is the Euler number

$\mu$ is the mean in the given interval.

Buchtal, a manufacturer of ceramic tiles, reports on average 3.1 job-related accidents per year.

This means that $\mu = 3.1$

What is the probability that more than one accident occurs per year?

This is:

$P(X > 1) = 1 - P(X \leq 1)$

In which

$P(X \leq 1) = P(X = 0) + P(X = 1)$

Then

$P(X = x) = \frac{e^{-\mu}*\mu^{x}}{(x)!}$

$P(X = 0) = \frac{e^{-3.6}*(3.6)^{0}}{(0)!} = 0.0273$

$P(X = 1) = \frac{e^{-3.6}*(3.6)^{1}}{(1)!} = 0.0984$

$P(X \leq 1) = P(X = 0) + P(X = 1) = 0.0273 + 0.0984 = 0.1257$

$P(X > 1) = 1 - P(X \leq 1) = 1 - 0.1257 = 0.8743$

0.8743 = 87.43% probability that more than one accident occurs per year

8 0

1 year ago

Hi can someone help me with this pls

Mama L [17]

Answer:

Step-by-step explanation:

6 0

2 years ago

Read 2 more answers

A ladder leans against a building. If the ladder reaches 18 feet up the wall and contacts the ground 5 feet from the building, w

ss7ja [257]

Answer:

I think it is 15 Tan^-1 (5÷18)

7 0

2 years ago

If you solve the equation for ax+by/c=d for x, what would you get?

Xelga [282]

Answer:

x=d/a - by/ac

Steps:

ax+by/c=d

(cax+by)/c=d

cax+by=cd

cax=cd-by

x=(cd-by)/ca

x=cd/ca - by/ca

x=d/a - by/ac

5 0

2 years ago