Answer:
a = 15
Step-by-step explanation:
screenshots below should explain the answer :)
Answer:
6, -6
Step-by-step explanation:
The 2nd roots of 36 are 6 and -6 since
6^2 = 36
and
(-6)^2 = 36
Answer:
Step-by-step explanation:
Given that a teacher gives a test to a large group of students. The results are closely approximated by a normal curve
mu =74 and sigma =8
A grade starts from 100-8 = 92nd percentile
Z score for 92nd percentile = 1.405
X score = 74+8(1.405) = 85.24
--------------------
B cut off is to next 16%
Hence C would start for scores below 100-(8+16) = 76%
76th percentile = 0.705*8+74 =79.64
I'm assuming which expression gives the same result as <span>∑^4
The choices are:
</span><span>i=0^(5)
(1/3)^i
</span>
The second option is correct since the first option is erroneous or makes little sense. The second option and the <span>∑^4</span> are geometric progressions which will account for each other when substituted together or one into another.
Answer:
10:7, 10:5=2:1, 10:2=5,1
Step-by-step explanation:
