Answer:
Step-by-step explanation:
a)L=2w+4
b)P=2L+2w
sub L=2w+4,
P=2(2w+4)+2w
P=4w+8+2w
P=6w+8
c) 20=6w+8
12=6w
2=w
L=2(2)+4
=8
Hence,
L=8 and w=2
Answer are in pictures below
Z = (x - mu)/sigma
z = (6.19 - 3.77)/3.39
z = 0.71386430678467
z = 0.71
The approximate z score, rounded to two decimal places, is 0.71
The answer is
C.
Since 1290 can be represented as 1290. we know that the decimal was moved to the right twice.
We have that
poster---------------- > 28 in X 32 in
1 in-------------------------------- >0.0833333 ft
28 in------------ > 28*.0833333=2.33 ft
32 in------------ > 32*.0833333=2.67 ft
Let
D---------------- >distance from the ceiling to the top of the poster
D=(9- <span>5 1/2 -2.67/2)=(9-5.5-1.335)=2.165 ft
the answer is 2.165 ft
</span>