Answer:
7.48m (3s.f.)
Step-by-step explanation:
Let the missing side be x m.
Applying Pythagoras' Theorem,
x² +5²= 9²
x² +25= 81
x²= 81 -25 <em>(</em><em>-25</em><em> </em><em>on</em><em> </em><em>both</em><em> </em><em>sides</em><em>)</em>
x²= 56
x= 7.48 (3 s.f.)
∴ The missing side is 7.48 m (3s.f.)
Some helpful advice: probability-<span>the extent to which something is probable; the likelihood of something happening or being the case.
that is the definition of probability hope this helps and i get brainliest answer have a great day:)</span>
The Sum of first 20 terms of required AP is 2100.
Justification:
<u>Let us suppose d is equal to 10</u>,
then,
<u>Structure of AP</u> => a, a + d, a + 2d....
AP => 10, 20, 30, 40...
Now,
Sn = n/2(2a + (n - 1)d)
Sn = 20/2(2 × 10 + (20 - 1)10)
Sn = 10(20 + 190)
Sn = 10 × 210
Sn = 2100.
Answer: A. Statistic because the value is a numerical measurement describing a characteristic of a sample.
Step-by-step explanation: Statistic are used to describe values obtained from a data sample which are regarded as a subset of the data belonging to an entire population. Therefore, in statistical parlance, numerical measurement obtained from such dataset are called statistic. On the other hand, if data from which a numerical derivation was made is a population which consists of the entire set of observations belonging to a particular group of interest, then the numerical values obtained are referred to as a parameter.
Answer: C
Step-by-step explanation: