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3 years ago

Identify the number as real, complex, pure imaginary, or nonreal complex. (More than one of these descriptions may apply.) -9i

Mathematics

1 answer:

Agata [3.3K]3 years ago

8 0

Answer:

Step-by-step explanation:

Me no hablas Inglish sorry pal

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There are 25 town homes in the Alief Community subdivision.

vodka [1.7K]

Answer:

Step-by-step explanation:

Fist, you would see that company a Provides water to 5 people, since 1/5 of 25 is 5. 25/15X9=15. 15+5=20. So, 25-20=5.

7 0

3 years ago

Find the area of the triangle ! include the unit in the answer (cm) (cm2) (cm3)

Sphinxa [80]

Answer:476

Step-by-step explanation:

if you multiply 14 times 17 times 4 it equals 952 but if you divide it it equals 476

3 0

3 years ago

Read 2 more answers

Work out the value of x <br>

GREYUIT [131]

A full circle is 360°.

x + 3x + 90° = 360°

4x = 360° - 90°

4x = 270°

4x/4 = 270°/4

x = 67.5°

Hope it helps! Make me brainliest if it’s correct.

6 0

3 years ago

You and some friends rent a limousine for a formal reception. The bill for the evening is $53.00, A tax of 6% will be added to y

Anna007 [38]

53×0.2 = 10.6

53×0.06= 3.18

53+3.18+10.6= 66.78

So the answer is $66.78 / number 2

4 0

3 years ago

A research scientist wants to know how many times per hour a certain strand of bacteria reproduces. The mean is found to be 10.3

user100 [1]

Answer:

Confidence interval for the true mean number of reproductions per hour for the bacteria is (10.1,10.5).

Step-by-step explanation:

We are given the following in the question:

Population mean, μ = 10.3

Population standard deviation, σ = 2.1

Sample size, n = 728

Alpha, α = 0.01

Confidence interval:

$\mu \pm z_{critical}\frac{\sigma}{\sqrt{n}}$

Putting the values, we get,

$z_{critical}\text{ at}~\alpha_{0.01} = \pm 2.58$

$10.3 \pm 2.58(\frac{2.1}{\sqrt{728}} ) = 10.3 \pm 0.2008 = (10.0992,10.5008) \approx (10.1,10.5)$

6 0

3 years ago