Answer:
What is the value of x.
If you know the value of x
then,
perimeter= x+12+7.71
and
if this traingle is an equilateral triangle
then,
area =½×7.71×x
In this all process you need to find x then all will be easy
Hope it helped you
If not then I am sorry for that
Bye
Answer: c. 3.01
Step-by-step explanation:
The test statistic for difference between two population mean (when population standard deviation is known) is given by :

, where
= Size of first sample
= Size of second sample
= Difference between two sample mean.
= standard deviation for population 1.
= standard deviation for population 2.
As per given , we have



Substitute these values in formula , we get




Hence, the value of the test statistic is <u>3.01</u>.
Hence, the correct option is c. 3.01 .
Answer:
31x³-60x²+7x-75
Step-by-step explanation:
(30x³-49x³+7x)+(50x³-60x²-75)
(-19x³+7x)+(50x³-60x²-75)
-19x³+50x³+7x-60x²-75
31x³-60x²+7x-75
325 divided by area 21 2/3. always area divided by length