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Leya [2.2K]
3 years ago
13

I need help on my math please

Mathematics
1 answer:
Dovator [93]3 years ago
7 0
In a 2-way frequency table, you take the row entry and divide it by its row total to get a decimal.
For your example:
It starts out like this:
            sunny   snowy
Male:       17      11
Female:   15      16

Add the rows up. 
            sunny   snowy       total
Male:       17      11              28
Female:   15      16             31

Then divide the number the by the total:   
            sunny           snowy       total
Male:       17/28        11/28              28
Female:   15/31        16/31             31      

Yours says to round to the 1000th place, so it ends up like:
            sunny   snowy     
Male:       .607      .393     
Female:    .484      .515
 
 Hope that helps!!    
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Answer:

C) 5.6

Step-by-step explanation:

In an AC circuit, the current changes periodically direction, following a sine-like function.

As a result, we have the following:

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The inductance of the circuit therefore is basically the resultant vector of the resistance (R) and the inductance (L), and the phase angle is related to the two quantities by the relationship:

tan \theta = \frac{L}{R}

In this problem, we have:

\theta=35^{\circ} is the phase angle

R=8 \Omega is the resistance of the circuit

Therefore, the inductance is:

L=R tan \theta = (8)(tan 35^{\circ})=5.6 \Omega

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