Z will be equal to 16. here’s my work
Given that the ,mean is 8000 and the standard deviation is 1000, thus the probability that <span>tube lasts for more than 11000 hours. will be given by:
P(x>11000)
the z-score is:
z=(x-</span>μ<span>)/</span>σ
x=11000
μ=8000
σ=1000
hence:
z=(11000-8000)/1000
z=3
thus
P(x>11000)=1-P(x<11000)
But
P(x<11000)=P(z<3)=0.9987
hence
P(x>11000)=1-0.9987=0.0013
75% is equivalent to 3/4 so you divide 30 by 3 and then multiply by 4 to get get 40.
Hope this helps :)
Answer:
<h3> A. Dilation and reflection</h3>
Step-by-step explanation:
There are the same angles in similar triangles but sides not necessarily.
In congruent triangles there are the same angles and the same sides.
Reflection, rotation or translation changes only position of triangle or mirrors it. Doesn't change the size, so the created triangle is congruent.
Answer:
Have them solve mathematical problems and those with the top two scores can go
Step-by-step explanation:
Fair game
