To solve this, we need to use the z statistic. The formula for z score is:
z = (x – u) / s
where x is sample value = less than 90, u is the sample mean = 90.6, s is the standard deviation = 17.2
z = (90 – 90.6) / 17.2
z = -0.035
From the standard distribution tables:
P (z = -0.035) = 0.4860
Therefore there is about 48.60 % chance that it will be less than 90 pounds
The nth root of a is always positive unless, a < 0 and "n" is an odd number. Also if a < 0 <span> and "n" is an even number, then it's an imaginary number. I hope this helps a lot</span>
Answer:
first is 243
2- 336
3- 375
Step-by-step explanation:
stuff
Answer:
B and D
Step-by-step explanation:
slope = 2/7
perpendicular equals negative reciprocal
so slope must be -7/2
A = 2/7
B = -7/2
C = 7/2
D = -7/2
The statement that they're equal is called a proportion.
