Answer:
A
Step-by-step explanation:
Given
21 ≤ - 3(x - 4) < 30 ← divide all 3 intervals by - 3
Remembering to reverse the direction of the signs as a result of dividing by a negative quantity
- 7 ≥ x - 4 > - 10 ← add 4 to each interval
- 3 ≥ x > - 6, that is
- 6 < x ≤ - 3 → A
Answer:
angle Y = 90 degrees
Step-by-step explanation:
Since it is stated that angle x forms a straight line with the 50 and 50 degree angles, and that angle x is vertical to angle y, we can do 40+50+y=180 to find angle Y.
Answer:
P(L ≤ l) =P (1-l ≤ U ≤ l)= l- ( 1 - l ) = 2 l - 1
Step-by-step explanation:
let assume that stick has length 1.Random variable L that make length of a longer piece and random variable U that mark point .See that L < l means that
U≤ l and 1-U ≤l
P(L ≤ l) =P (1-l ≤ U ≤ l)= l- ( 1 - l ) = 2 l - 1
this means 1-l≤U≤l
so we have
if we have L [1/2,1]
then apply the formula we have E(L)=3/4
23 the answer is Bbbbbbbbbbbbbbbbbbbb
Step-by-step explanation:
So as the usual we can see that
Ab=9 and cd=9
And we can get bc by
ration reading 1
So AB:BC=1:3
SO we said that AB is 9 so we have to multiply The ratio by 9:9 we can see that the ratio will be AB:CD=9:27 the main thing here is we have got the BC which Is 27
So AD means the sum of all Points
AB+BC+CD=AD
9+27+9=AD
AD=45
Thanks in Advance
Nahom Wondale