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3 years ago

If it takes 5 minutes for 5 machines to make 5 objects, then how long would it take for 100 machines to make 100 objects?

1 answer:

4 0

1 machine 5 min. 1 object
100 machine x min. 100 object

so than from this result that for 100 machine to make 100 objects need 5 minutes

hope this will help you

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Which of the following is an example of a complex number that is not in the set of real numbers?

ExtremeBDS [4]

A complex number has a real and an imaginary part

$4 + 9i$ is a complex number

A complex number is represented as:

$a + bi$

Where:

$a \to$ real

$bi \to$ imaginary

By comparing the options to $a + bi$ ;

$-7$ and $2 + \sqrt 5$ are not complex numbers

This is so because they do not have imaginary parts

However,

$4 + 9i$ is a complex number

Because; 9i is imaginary

Read more about complex numbers at:

brainly.com/question/19007885

8 0

1 year ago

51 and 53 HELP PLS!!!!!!!

Gelneren [198K]

Hi!
Answers:

51. w=9/4

53. b=12

5 0

2 years ago

The sample consisted of 50 night students, with a sample mean GPA of 3.02 and a standard deviation of 0.08, and 25 day students,

bulgar [2K]

Answer: The test statistic is t= -0.90.

Step-by-step explanation:

Since we have given that

n₁ = 50

n₂ = 25

$\bar{x_1}=3.02\\\\\bar{x_2}=3.04\\\\\sigma_1=0.08\\\\\sigma_2=0.06$

So, s would be

$s=\sqrt{\dfrac{n_1\sigma_1^2+n_2\sigma_2^2}{n_1+n_2-2}}\\\\s=\sqrt{\dfrac{50\times 0.08^2+25\times 0.06^2}{50+25-2}}\\\\s=0.075$

So, the value of test statistic would be

$t=\dfrac{\bar{x_1}-\bar{x_2}}{s(\dfrac{1}{n_1}+\dfrac{1}{n_2})}\\t=\dfrac{3.02-3.04}{0.074(\dfrac{1}{50}+\dfrac{1}{25})}\\\\t=\dfrac{-0.04}{0.074(0.02+0.04)}\\\\t=\dfrac{-0.04}{0.044}\\\\t=-0.90$

Hence, the test statistic is t= -0.90.

7 0

3 years ago

What is the volume of a cube with an edge length of 3.2 meters?

klemol [59]

Volume of a cube is Side to the third power ( S^3)

S = 3.2 meters

Volume = 3.2^3

Volume = 32.768 cubic meters (cm^3)

You may need to round the answer.. The problem doesn't say how many decimal places are needed.

8 0

3 years ago

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He graph of the function f(x) = –(x + 6)(x + 2) is shown below.

KIM [24]

See attachment although I gather this is not your question. I did the graph(s) for the function,

5 0

3 years ago

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