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3 years ago

Find the length of the radius of a circle with a center at -7+2i and a point on the circle 33+11i

2 answers:

6 0

Hello :
let : z = -7+2i and z' = 33+11i z - z' = 40 +9 i
the radius of a circle : |z - z' | = √((40)²+(9)²) =√1681 = 41

Vadim26 [7]3 years ago

5 0

Answer:

The answer is 41

Step-by-step explanation:

Correct on edge :)

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The diameter d in inches of a rope required to lift a weight of w tons is given by the function d = 10w/ π . How much weight can

Ilia_Sergeevich [38]

Answer:

Option D) 1.26 tons

Step-by-step explanation:

we have

$d=\frac{10w}{\pi}$

where

d is the diameter of a rope in inches

w is the weight in tons

we have

$d=2(2)=4\ in$ ----> the diameter is two times the radius

substitute the value of d and solve for w

$4=\frac{10w}{\pi}$

$w=\frac{4\pi}{10}=0.4\pi\ tons$

assume

$\pi =3.14$

$0.4(3.14)=1.26\ tons$

7 0

3 years ago

Read 2 more answers

How many minutes are in 5/6, 1/2, and 2/3 of an hour

julia-pushkina [17]

An hour has 60 minutes.

-> 5/6 of 60 minutes
5/6*60
=50

So, 50 minutes

-> 1/2 of 60 minutes
1/2*60
=30

So, 30 minutes

-> 2/3 of 60 minutes
2/3*60
=40

So, 40 minutes.

Hope this helps. If you have any questions, please put them in the comments below.

5 0

3 years ago

Read 2 more answers

Explain how to find the deviation of an entry in a data set

Ilia_Sergeevich [38]

The answer is: Find the mean of the differences with the other numbers in the set. Add the squared differences and then divide the total by the number of items in data in your set; take the square root of this mean of differences to find the standard deviation.

3 0

3 years ago

Organisms are present in ballast water discharged from a ship according to a Poisson process with a concentration of 10 organism

mash [69]

Only letter a has an answer. Pls. see attachment.

The probability that one cubic meter of discharge contains at least 8 organisms is 0.7798

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3 years ago

What is the percent equation for 46% of 127?

Brut [27]

Answer:

46% of 127 is 58.42

Step-by-step explanation:

46/100 = x/127

Cross multiply

46 × 127 = 100 × x

5,842 = 100x

Divide both sides by 100

58.42 = x

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3 years ago