Answer:
2nd and 4th are correct
Step-by-step explanation:
There is no table, and what us the question?
Answer:
3/5
Step-by-step explanation:
There are 10 letters in the word "statistics".
Out of which, there are 3 s's and 3 t's.
So, the question asks what's the probability to get a S or a T out of 10 letters.
Since the number of S's (3) and the number of T's equal 6, that means you have 6 chances out of 10 to pick an S or a T.
6/10 or if we simplify/reduce it... we get 3/5.
Answer: 1. 28 2. 25
Hope this helps!
Didn't know if you wanted the explanation or not, so sorry. But I can put an explanation if you need it.
OK, let's try with no figure. We have an isosceles triangle sides s,s, and b.
Opposite b is angle t.
Draw the altitude h to bisect t. We have two right triangles, legs b/2 and h, hypotenuse s. The angle opposite b/2 is t/2 so
sin(t/2) = (b/2)/s = b/2s
So we arrived at the first part,
b = 2s sin(t/2)
The area of a triangle with sides s,s and included angle t is
A = (1/2) s² sin t
