Answer:
Step-by-step explanation:
We are given that:
Where θ is in QIV.
And we want to find the value of tan(θ).
Recall that cosine is the ratio of the adjacent side over the hypotenuse.
Therefore, the opposite side is:
Next, in QIV, only cosine is positive: sine and tangent are both negative.
Tangent is the ratio of the opposite side to the adjacent. So:
Substitute. Tangent is negative in QIV. Hence:
A cell's expected frequency can be defined as the number of people in its row divided by the total number of people, multiplied by the number in its column and is therefore denoted as option C.
<h3>What is Frequency?</h3>
This is defined as the number of occurrences of a repeating which takes place per unit time.It also helps to measure how frequent something occurs when counted or observed and is also used in the calculation of the different types of statistical data present or given.
This type of frequency is theoretical and are values which will most likely be in an experiment. it is calculated by multiplying the number in its column by the number of people in the row and dividing by the total number of people in this context.
Read more about Frequency here brainly.com/question/395982
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Answer:
314.16
Step-by-step explanation:
area = pi x r2. 3.14 x 100 = 314.16
It's scalene because all three sides are different
Answer:
Itsb
Step-by-step explanation: