Answer: Answer is B and D.
Step-by-step explanation: Because C and D is about math.
Good luck! Hope this helped! :D
Answer:
532
Step-by-step explanation:
The score that represents the top 20% = A score = 80%
Z score for 80% percentile = 0.842
We solve using the z score formula
z = (x-μ)/σ, where
x is the raw score = ??
μ is the population mean = 490
and σ is the population standard deviation = 50
Hence:
0.842 = x - 490/50
Cross Multiply
0.842 × 50 = x - 490
x = 0.842 × 50 + 490
x = 42.1 + 490
x = 532.1
Approximately = 532
Therefore, the test score = 532
√-25
= √(25*-1) = √25 * √-1 = 5i, where i = √-1
The principal square root = 5i
Answer:
(-5, -4)
Step-by-step explanation:
I got it correct and that is right
Answer:
2.34
Step-by-step explanation:
Divide the total by the number of bags!
28.08/12=2.34
CHECK: 2.34*12=28.08
brainliest, please? ty! <3
