The average score is 500 points and the standard deviation is 50 points.Mean - 2 SD = 500 - 2 * 50 = 500 - 100 = 400It means that more than 400 on the standardized test is more than: Mean - 2 Standard deviations.For the Normal distribution: 100% - 2.5 % = 97.5% = 0.975.Answer: The probability that student scores more than 400 points is 0.975.
Answer:
the answer is 18 months==1 year 6 months
Answer:
limit does not exist
Step-by-step explanation:
well x is 1.5 so input 1.5 to everything
so (g(1.5) - 1) / 3 - 3 which is undefined because the bottom is 0
therefore, the limit does not exist
(Dont trust my answer because I am learning limits this year and I am not sure if it is correct or not)
Answer
2x-y <or =-6
2x<or=-6+y
divide both sides by 2
x<or=1/2y+3
5(1/2y+3)+4y>or=20
5/2y+15+4y>or=20
5/2y+4y>or=20-15
13/2y>or=5
divide both sides by 2/13
y>or=10/13
2x-10/13<or=-6
2x<or=-6+10/13
2x<or=-68/13
divide both sides by 2
x< or =-34/13
Your answer is A-18.2 Since BD and DC are congruent, we just add them together.
9.1+9.1=18.2
-Steel jelly
