Area of triangle = (1/2)*base*height
20.335 = (1/2)*base*8.3
2*20.335 = base*8.3
(2*20.335) / 8.3 = base Use your calculator.
4.9 = base
base = 4.9cm
We know that
if <span>Ray RT bisects QRS
then
the ray RT </span> divide into two equal parts the ∡QRS
so
∡QRT=∡TRS
∡QRT=∡QRS/2-------> 64°/2------> 32°
∡QRT=32°
∡TRS=32°
<span>
the answer is
</span>the measures of QRT and TRS is 32°
Answer:
Step-by-step explanation:
35 49 51 54 65 51 52 47 87 37 46 33 39 44 39 64 94 34 30 48
is the sample given
From the above we can find
Mean =sum of all observations /20
=
Variance =
Std deviation= square root of variance
= 16.424
Population estimate for mean = 49.95
Population estimate for std dev =
=3.673
The value that separate 50% top form 50% bottom is the median
Median is the middle value after arranging in ascending order
=average of 47 and 48 = 47.5
Proportion of atleast 60 = 2/20 = 0.1